Zookeeper sasl authentication. 关键字：Zookeeper 和 SASL 介绍 这是一个描述ZooKeeper和SASL(Simple Authentication and Security Layer)整合建议的设计文档。JIRA 和 源代码 JIRA问题ZOOKEEPER-938，来自JIRA的可用补丁。请注意：这个JIRA文章只描述了客户端-服务器的相互认证。服务器-服务器的相互认证存在单独的JIRA:Z If SASL Quorum Peer authentication is enabled in ZooKeeper (quorum. Kafka authentication¶. Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. JAAS uses its own Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company zookeeper sasl authentication issue. ssl. SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find SASL authentication in docker zookeeper and kafka. enableSasl=true configuration. 4. 9 – Enabling New Encryption, Authorization, and Authentication Features. First of all, I'm just running some test and thus I don't wan't/need any authentication at all. This can be applied to clients, inter-broker connections, and broker to Zookeeper calls. 1:9092) failed authentication due to: Authentication failed during authentication due to invalid credentials with SASL mechanism SCRAM-SHA-512 apache-kafka docker-compose Authentication in Kafka: SSL; SASL: PLAIN, SCRAM(SHA-256 and SHA-512), OAUTHBEARER, GSSAPI(Kerberos) Authorization in Kafka: Kafka comes with simple authorization class kafka. Modified 4 years, 4 months ago. 2 connect failed between containers with zookeeper and kafka. location zookeeper. no client certificate) connectivity to ZooKeeper. From your example, I guess zookeeper. client to false. The first step was to write a docker-compose file with a standard implementation of Zookeeper and Kafka to provide us with a base to start from. login. I0Itec. The errors I get in zookeeper log are the following: ``` 2021-07-12 21:04:46,437 [myid:3] - WARN [NIOWorkerThread-3 Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. Create an AWS Account. zookeeper:zookeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. In that case you need to follow the Zookeeper Server-Client guide: https: I am trying to enable SASL username and password for a Kafka cluster with no ssl. Ask Question Asked 4 years, 5 months ago. The errors I get in zookeeper log are the following: ``` 2021-07-12 21:04:46,437 [myid:3] - WARN [NIOWorkerThread-3 The new Producer and Consumer clients support security for Kafka versions 0. . JAAS is also used for authentication of connections between Kafka and ZooKeeper. ZkAuthFailedException: Authentication failure at org. Asked 5 years, 11 months ago. Our goal is to make it possible to run Kafka as a central platform for streaming While mTLS is a robust security measure, alternatives like ACLs (Access Control Lists) and SASL (Simple Authentication and Security Layer) also provide levels of security for Kafka and ZooKeeper. To best protect zNodes created in Zookeeper by NiFi while maximizing NiFi’s ability to share information across the cluster I propose that we move to using Zookeeper’s SASL authentication scheme, which will allow the use of Kerberos principals for securing zNode with the appropriate permissions. X509AuthenticationProvider. This describes how to set up HBase to mutually authenticate with a ZooKeeper Quorum. You may continue to use existing ZooKeeper authentication providers, such as DigestAuthenticationProvider together with SaslAuthenticationProvider, if you wish. SASL authentication seems to be working for Kafka brokers. GSSAPI (Kerberos) for authentication ¶ SASL/GSSAPI (Kerberos) explains how to use SASL/GSSAPI for authentication to your Confluent Platform clusters using your Kerberos or Active Directory Simple Authentication and Security Layer (SASL) is a framework for authentication and data security in Internet protocols. Returns: true if the SASL client is enabled. The selected mechanism in each case determines the sequence and format of server challenges and client responses performed during the authentication flow. ZooKeeper supports various authentication mechanisms, including Digest-MD5, Kerberos, and SSL client certificates. ZookeeperRegistryCenter can connect to Zookeeper Server with SASL authentication enabled. Test your setup by producing and consuming messages with a client configured to use SASL/PLAIN authentication. SASL Authentication - Kerberos GSSAPI in Kafka: Setup Kerberos on an EC2 machine and create credentials for Kafka and Clients. ZooKeeper supports mutual server-to-server (quorum peer) authentication using SASL (Simple Authentication and Security Layer), which provides a layer auth doesn't use any id, represents any authenticated user. I am working in securing Kafka with Kerberos in CDH 5. Server-to-server authentication between instances reduces the The ZooKeeper Wiki also has useful pages about ZooKeeper SSL support, and SASL authentication for ZooKeeper. XML Word Printable JSON. Viewed 14k times. 10+, Zookeeper supports mutual server-to-server authentication using SASL, which provides a layer around Kerberos authentication. X. It's been added in ZOOKEEPER-2123. This document describes the integration between ZooKeeper and the SASL (Simple Authentication and Security Layer). Preferences . Asking for help, clarification, or responding to other answers. 0版本中添加，为true时要求客户端连接zk时必须进行SASL认证才可以连接成功，也就是说没有进行SASL认证的匿名用户就无法连接了，相当于在连接时设置了一个登录密码。 authProvider. If (1) does not help or is not the issue, try regenerating the zookeeper credentials in Cloudera Manager to ensure that your keytab contains the same keys as the KDC for that principal. Created on ‎10-18-2019 03:49 AM - last edited on ‎10-18-2019 05:15 AM by cjervis. If SASL Quorum Peer authentication is enabled in ZooKeeper (quorum. Kafka Cluster Update. ZOOKEEPER-938 addresses mutual authentication between clients and servers. Can you try to set 'skipACL=yes' to your zookeeper. extends Object. When connecting to ZooKeeper via the secure port, the client is automatically authenticated with credentials associated with the client certificate. Type: Bug Status: Open. client=true s Dear experts, I have installed apache kafka 2. trustStore. arp@gmail. Looking at the zookeeper acls, «kafka» will be granted cdrwa (all) permissions on the zode, automatically. ClosedChannelException at sun. superDigest : (Java system property: zookeeper. Specifies the context key in the JAAS login file This class manages SASL authentication for the client. The Digest is stored in the ZK node; any client which provides Figure 1: SASL authentication challenge and response. Feedback . Specifies the context key in the JAAS login file. acl=true in the server. This poses a potential securit Zookeeper is set to SASL with only read permissions for no autheticated users. We can potentially we locked out if we were to grant everyone just read permissions to a znode, as we would not be able to delete it or modify it anymore. Provide details and share your research! But avoid . Cluster is comprised of 2 Kafka nodes and 1 zookeeper. When I tried to enabled zookeeper SASL authentication, I got below Zookeeper grants permissions through ACLs through different schemas or authentication methods, such as 'world', 'digest', or 'sasl' if we use Kerberos. Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. ZooKeeper ACL, allow children creation but not changing a node. jks -alias localhost -validity 365 -genkey -keyalg RSA You need to specify two parameters in the above command: alias: you can use domain name. I am having SSL and SASL(Kerberos) enabled for kafka broker and now enabled SASL for zookeeper. As a pre-requisite to understand the contents of this post, I Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. 1 How to block creating/deleting kafka topic by unauthorized users? 0 Exception while loading Zookeeper JAAS login context and Could not If SASL Quorum Peer authentication is enabled in ZooKeeper (quorum. connect property is pointing to Kafka server port, 9092, itself. Authentication mechanisms can also support proxy However, Zookeeper doesn't support SASL_SCRAM. username to the appropriate name (e. One such implementation is called GSSAPI, so SASL can be seen as sitting "on top" of GSSAPI. 2 Zookeeper/SASL Checksum failed. I faced an issue while trying to use alternative aliases with Zookeeper quorum when SASL is enabled. As of version 2. exception. clientconfig=ZkClient. Zookeeper subnetwork based ACL. Hot Network Questions Can a government contractor take photos inside my house with personal cell phone? How do I start building on the space platform? Was there a The ZooKeeper Wiki also has useful pages about ZooKeeper SSL support, and SASL authentication for ZooKeeper. allowSaslFailedClients configuration is overruled. Use the Client section to authenticate a SASL connection with ZooKeeper, and to also allow brokers to set a SASL ACL on ZooKeeper nodes, which locks these nodes down so that only Introduction. txt This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Setting it to false disables client authentication. Moreover, it is important to secure it for authorization because ACLs are stored in it. Currently I am using confluent offering of Kafka, with CDH Zookeeper. ; Moved the keystore and truststore folder into my Apache Kafka config folder. Contact Us. make certain that your /etc/krb5. 0) and Zookeeper instance on my machine with a working SASL/PLAINTEXT authentication mechanism and I'm trying consume topic as ANONYMOUS user. In the following configuration example, the underlying assumption is that client authentication is required by the broker so that you can store it in a client properties file client Zookeeper still does not support SASL/SCRAM, it instead supports SASL/DIGEST-MD5, we need to configure server-to-server and client-server communications. It stores the name of a user that can access the znode hierarchy as a "super" user. Authentication of Solr Cloud using zookeeper host string. 0 Kafka spring integration authorization with sasl. This document describes how to use SSL feature of ZooKeeper. ClientCnxn - SASL configuration failed: javax. The vulnerability arises from a flaw in how Apache ZooKeeper handles authorization through SASL authentication. SASL is a protocol that supports identity authentication and secure data transmission. Apache Kafka is frequently used to store critical data making it one of the most important components of a company’s data infrastructure. Now I want to give authentication requirements using SASL in DIGEST-MD5 mode when I create the node (in the above code). Any data Kafka saves to ZooKeeper will be only modifiable by the kafka user in ZooKeeper. NIOServerCnxnFactory. Hot Network Questions Can I terminate this instance? argon2id: Do I have to protect against timing attacks on login? Is there anything wrong in reordering commits? Configuring Authentication. DigestAuthenticationProvider. Hopefully much of the work done on SASL integration with Zookeeper for If you want to turn off authentication in a secure cluster: Perform a rolling restart of brokers setting the JAAS login file, which enables brokers to authenticate, but setting zookeeper. threads=3 # The number of threads that the server SASL Authentication with ZooKeeper. I followed the steps on this Stackoverflow: Kafka SASL zookeeper authentication. Zookeeper supports server-server mutual authentication using Simple Authentication and Security Layer (SASL). SaslException: GSS initiate failed [Caused by GSSException: Failure unspecified at GSS-API level (Mechanism level: Invalid argument (400) - Cannot find key of How Do I Disable ZooKeeper SASL Authentication? Answer: Log in to FusionInsight Manager. clientconfig Apache Kafka provides an unified, high-throughput, low-latency platform for handling real-time data feeds. 6. Zookeeper Security: Learn how to secure Zookeeper using Kerberos ===== Instructor SASL for ZooKeeper instances,Microservices Engine:By default, ZooKeeper instances do not perform forced identity authentication. 1:2181. 3 Kafka SASL configuration: Is it However, it supports Java Authentication and Authorization Service (JAAS) which can be used to set up authentication using Simple Authentication and Security Layer (SASL). Let’s now see how can we configure a Java client to use SASL/PLAIN to authenticate against the Kafka Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. The ZooKeeper server and client use TLS, Kerberos, SASL, and Authorizer in Apache Kafka 0. network. -Dzookeeper. zookeeper sasl authentication issue. Zookeeper Client will go to AUTH_FAILED state. ZooKeeperSaslClient) [2022-01-14 09:51:21,405] ERROR SASL authentication with Zookeeper Quorum member failed. 1 Kafka relationship with Zookeeper. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; Print; Report Inappropriate zookeeper sasl authentication issue. Here is kafka-ui log: kafka-ui | 2022-03-29 07:47:43,759 WARN [kafka-admin-client-thread | adminclient-1-SendThread(ember-apac-zk-2. Modified 2 years, 7 months ago. The instance part in SASL auth ID is optional and if it's missing, like 'eve EXAMPLE COM', the authorization check will be skipped. ; SASL/SCRAM: Uses usernames and password stored in ZooKeeper. Is it possible to connect zookeeper and kafka via SASL , kafka broker and its clients via SSL without enabling plain text? 2. ZooKeeper also provides support for SASL (Simple Authentication and Security Layer) authentication mode which can implement an authentication mechanism based on username and password through simple server and client configurations. Enable server-to-server mTLS authentication, but using custom properties, don’t enforce mTLS (sslQuorum: "false") and allow both TLS and non-TLS connection on the same SASL Authentication. First we need to configure Kafka OPTS in Zookeeper docker as follows(for full In the previous post, we discussed TLS (SSL or TLS/SSL) authentication to improve security. ClientCnxn: Opening socket connection to server localhost/127. Now Broker can authenticate with Zookeeper, but I can't have Producer to authenticate to Broker via SASL_SSL:9093. vascop vascop. Type: string; Default: zookeeper; Usage example: To pass the parameter as a JVM parameter when you start the broker, specify -Dzookeeper. Hot Network Questions How to place the SASL/OAUTHBEARER enables the use the OAuth 2 Authorization framework in a SASL context to create and validate JSON web tokens for authentication. This guide describes how to enable secure communication between the quorum peer servers using SASL mechanism. See the section "Require All Connections to use SASL Authentication" here. So I didn't configured any. clientconfig. PLAIN simply means that it authenticates using a combination of username and password in plain text. Kafka should now authenticate when connecting to ZooKeeper. conf; zookeeper. There are two primary goals of this tutorial: teach the options we have for Kafka authentication prepare us towards building a multi-tenant Kafka cluster. 92) will support connecting to a ZooKeeper Quorum that supports SASL authentication (which is available in Zookeeper versions 3. 3. The ZooKeeper and SASL guide in the Apache documentation discusses implementation and configuration of SASL in ZooKeeper in detail. This will load the provider into the ProviderRegistry. The configuration process is the same as the general method of using the ZooKeeper client. x, ZooKeeper supports mutual TLS (mTLS) authentication. elasticjob. However, each user and Zoo keeper SASL security. (kafka. enabled=true and enforce. properties SASL authentication is supported by Zookeeper clients of all Kafka versions. Since there is no zookeeper server running on the given address localhost:9092, zookeeper-client fails to connect to zookeeper server and throws below error Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. As of version 3. When SASL Quorum Peer authentication is enabled and not properly configured, an attacker could bypass authentication Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. KafkaServer' entry in the JAAS zookeeper sasl authentication kerberos Description. security. So even if server is configured to I’d like to share how I managed to setup Zookeeper with SASL Digest enabled, as well as reject any unauthenticated connections to Zookeeper, and finally, connect to it from a Java application using Apache Curator as the client. Ensure that Server-to-server SASL authentication requires all servers in the ZooKeeper ensemble to authenticate using Kerberos. Fix Version/s: None Component/s: None Labels: None. Vulnerability Description. Kafka Security implementation issue SASL SSL and Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. It supports Kerberos and Digest-MD5 schemes. I have successfully setup SASL PLAIN and PLAINTEXT security for Kafka brokers, in a sense that clients cannot To make Zookeeper use the JAAS config file, pass the following JVM flag to Zookeeper pointing to the file created before. Camel-Kafka security protocol SASL_SASL not working. zookeeper_jaas. You signed out in another tab or window. SaslException: An error: (java. Kafka Custom Authorizer. SASL is a framework for applications to add authentication support by way of a variety of authentication mechanisms. In addition to configuring ZooKeeper Server hosts to use Kerberos for authentication, you must configure the ZooKeeper client shell to authenticate to the ZooKeeper service using Kerberos credentials. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; Print; Report Inappropriate This class manages SASL authentication for the client. For SASL authentication to ZooKeeper, to change the username set the system property to use the appropriate name. The instance part in SASL auth ID is Authorization bypass through user-controlled key is available iff SASL Quorum Peer authentication is enabled in ZooKeeper via quorum. provider. 0 or later). KafkaServer' entry in the JAAS. 2: Enables a ZooKeeper ensemble administrator to access the znode This allows non-SASL authenticated Zookeeper clients to interact without modification with a SASL-configured Zookeeper Quorum. The documentation will provide a simple setup of the Simple Authentication and Security Layer (SASL) setup of Zookeeper/Kafka Broker Will continue connection to Zookeeper server without SASL authentication, if Zookeeper server allows it. You can use the JAAS and JAAS pass-through mechanisms to set up the credentials. Export. Refer to Use Delegation Tokens for Authentication in Confluent Platform for more details. Kafka Authentication with SASL - duplicate admin user? getting this exception while brining up the Zkservers ERROR 2019-10-15 10:31:44,851 [main] QuorumPeerMain - Unexpected exception, exiting abnormally javax. 2 following this official document. However, a vulnerability in the authorization process of SASL authentication can lead to an authorization bypass. boolean: isAuthenticated This method is used to check if the authentication done by this provider should be used to identify the creator of a node. DigestAuthenticationProvider. How to implement OAUTHBEARER SASL authentication mechanism in kafka? 2. Recently added to this guide. Hot Network Questions How to encode information on top of a protocol? Why can't I align an image by the top border of tabular? What does "I bought out the house" mean in this context? Can spring constant change by twisting or unwinding spring? Zookeeper. So far so good. However Restart the three Zookeeper instances to enable (and enforce) mTLS for server-server communication. Log In. 1. We will secure our zookeeper servers so that the broker can connect to it securely. To use the protocol, you must specify one of the four authentication methods supported by Apache Kafka: GSSAPI, Plain, SCRAM-SHA-256/512, or OAUTHBEARER. 0. acl setting. plain. Load 7 more related questions Show Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. Best practices for Kafka clients. Find the Enable Server to Server SASL Authentication and select it. Search for sasl. Write better code with AI Security. When you start your kafka broker, it will autheticate against zookeeper as «kafka» and be able to create the znode. channels. ElasticJob’s org. Group Groups in the brokers. Save the configuration and restart the ZooKeeper service. digest uses a username:password string to generate MD5 hash which is then used as an ACL ID identity. properties; server. As with the ZooKeeper Server, you must create a Kerberos principal for the client. The Knox remote configuration registry facility currently supports the Kerberos and DIGEST-MD5 mechanisms for ZooKeeper interactions. Viewed 4k times 1 I am trying to set up an open-source Kafka cluster. At the end of the rolling restart, brokers stop creating znodes with secure ACLs, but are still able to authenticate and manipulate all znodes. superUser: (Java system property: zookeeper. Hot Network Questions Is it possible for an overly frugal culture to have high economic growth? How to shade areas between three cycles? Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. kafka. Summary. Downloaded This github config project. ZooKeeper also allows users to disable authentication on the client side even in the presence of a JAAS login file with the property zookeeper. SASL_PLAINTEXT will be used between brokers and zookeeper, and SASL_SSL will be used with external producers and consumers. 3. Find and fix vulnerabilities Actions. 43 Unable to start kafka with zookeeper (kafka. sh. A uthorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. removeHostFromPrincipal=true kerberos. shardingsphere. if the SASL client is enabled. Hot Network Questions Why isn't Listable listed as an attribute of functions such as QuantityMagnitude and UnitConvert? Ghost film involving the background of scenes lining up to create the appearance of a person, and then that person moving alias fake hostname via /etc/hosts The tricky part, as you noticed, is getting that command to authenticate with SASL. If the client can produce and consume messages without errors, SASL/PLAIN authentication is working correctly. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You signed in with another tab or window. Could not connect to ZooKeeper using Solr in localhost. How can government immunity for violating constitution be constitutional? SASL (Simple Authentication and Security Layer) Similar to GSSAPI, it is an API that allows for mutual authentication and (optionally) encryption. Client authentication can also be enabled by Simple Authentication and Security Layer (SASL), and we will discuss how to implement SASL authentication with Java and Python Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. One such implementation is Zookeeper based Configuration SASL_PLAINTEXT - Kerberos or plaintext authentication with no data encryption; SASL_SSL - Kerberos or plaintext authentication with data The normal Zookeeper mechanism of using addauth to authenticate doesn't work with SASL, because SASL has to happen at startup, not later as Zookeeper expects. properties. Hot Name: CVE-2023-44981: Description: Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. boolean: isValid (String id) Validates the syntax of an id. The choice of authentication mechanism depends on the security requirements of your infrastructure. There is currently no support for SSL for the communication between ZooKeeper servers. The server must support the selected SASL mechanism by the client, otherwise the attempt to authenticate will be rejected. 2 Zoo keeper SASL security. Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key when the SASL Quorum Peer authentication is enabled You may want to try to adding '-Dsun. Authentication based on delegation tokens is a lightweight authentication mechanism that you can use to complement existing SASL/SSL methods. In addition to the keytab and JAAS setup, be aware of the zookeeper. username=zk). acl to false. This setting, when set to true, enables ZooKeeper ACLs, which How to Set Up Authentication in Kafka Cluster | CodeForGeek. All Kafka SASL zookeeper authentication. Confluent Ansible supports the following authentication modes for Kafka in the ZooKeeper mode: SASL/PLAIN: Uses a simple username and password for authentication. English. conf; kafka_server_jaas. Credentials get created during installation. properties ? If you authenticated with Zookeeper by using SSL client certs when you created 'broker-admin' user, I think it because access from other than the place where you executed the command is denied. Parent topic: Client Usage. Load 4 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can answer? Share a link to this ZOOKEEPER-1623; Authentication using SASL. clientconfig . config should be prefixed with SASL mechanism name. By default, the client is enabled but can be disabled by setting the system property zookeeper. Click Save Changes. See ZOOKEEPER-1657 for more information. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I'm guessing you want to enable SASL authentication between Kafka and Zookeeper. sasl. AWS Documentation. Likewise when enabling authentication on ZooKeeper anonymous users can still connect and view Client-side SASL/DIGEST authentication for ZooKeeper¶ Configure client-side Kafka to authenticate to ZooKeeper using SASL/DIGEST. Amazon Managed Streaming for Apache Kafka. ClientCnxn) [2022-07-20 23:11:18,671] ERROR [ZooKeeperClient] Auth failed. ch You can configure the ZooKeeper server for Kerberos authentication in Cloudera Manager. SASL configuration for Clients To configure SASL authentication on the clients: Select a SASL mechanism for authentication and add a JAAS Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. Zookeeper supports authentication using the DIGEST-MD5 SASL Hi, I am facing the below issue while trying to run a spark streaming job from Kafka. nio. Zookeeper/SASL Checksum failed. A malicious user could bypass the authentication controller by using a non-existing instance part in SASL authentication ID (which is optional), therefore, the server would skip this check and as Test your setup by producing and consuming messages with a client configured to use SASL/PLAIN authentication. g. superDigest ) By default this feature is disabled New in 3. Navigation Menu Toggle navigation. I'll stop him. boolean: matches (String id, String aclExpr) This method is called to see if the given id "message":"Could not login: the Client is being asked for a password, but the ZooKeeper Client code does not currently support obtaining a password from the user. (org. quorum. Hot Network Questions I am trying to understand hypothesis testing Is it safe for an unaccompanied woman to walk downtown streets in Atlanta, USA at day on a weekend? Ugly node connecting in nested I try to make Kafka connect to the external zookeeper, I first need to do ssl mutual authentication for zookeeper。 Something like this. ZooKeeper supports mutual server-to-server (quorum peer) authentication using SASL (Simple Authentication and Security Layer), which provides a layer around Kerberos authentication. And you also need to set secureClientPort and not clientPort in zookeeper. propeties, but i still can access the zookeeper on port 2181 and this is available for anyone through the: kafka-topics --zookeeper <server-name>:2181 --list SASL authentication is configured using Java Authentication and Authorization Service (JAAS). The jaas config file is configured properly. Is this possible at all? java; apache-kafka; apache-zookeeper; sasl; Share. So long as the username/password exists in the store then the client can be Adapting the docker-compose file to support the SASL based authentication configurations; Writing a sample producer and consumer to test publishing and subscribing data into the deployed Kafka. Hot Network Questions How to describe a living room having a balcony door letting you view the city down below? Can I say "a room with an open layout"? An AuthenticationProvider backed by an X509TrustManager and an X509KeyManager to perform remote host certificate authentication. How to resolve Kafka error: Connection to node 0 could not be established? Hot Network Questions Who wins this match removal game? How many dots are there? However, for production is recommended to use SASL with SSL to avoid exposure of sensitive data over the network. Kafka and Zookeeper TLS. X:2181)] zookeeper. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company How to use TLS-based client authentication with Amazon MSK. properties, and -Dzookeeper. SASL-SSL (Simple Authentication and Security Layer) uses TLS encryption like SSL but differs in its authentication process. 3 Kafka and Zookeeper TLS. But I have ended up with below exception on broker 2 and 3 node while implementing SASL_SSL GSSAPI mechanism for Broker to Zookeper Authentication From SSL settings, the cluster is configured with SAS Apache ZooKeeper could allow a remote attacker to bypass security restrictions, caused by a flaw when SASL Quorum Peer authentication is enabled. location To specify store 1. Click the Configuration tab. server. This is used to SASL and existing authProviders. Zookeeper and Kafka with SASL security. ZooKeeper supports Kerberos or DIGEST-MD5 as your authentication scheme. It decouples authentication mechanisms from application protocols, in theory allowing any authentication mechanism supported by SASL to be used in any application protocol that uses SASL. keystore To configure the ZooKeeper server to use the custom provider for authentication, choose a scheme name for the custom AuthenticationProvider and set the property zookeeper. Find the Enable Kerberos Authentication property. 1 Unexpected Kafka request of type METADATA during SASL handshake when connecting to kafka server by a consumer. 515 docker-compose up for only certain containers. conf on the zookeeper host contains only the encryption types that are in the zookeeper keytab 2. Installing Apache Kafka, especially the right configuration of Kafka Security including authentication and encryption is kind of a challenge. common. KafkaPrincipal Internally in Kafka, a client's identity is represented using a See the config documentation for more details #listener. Common scenarios are discussed below. 0 and higher. The source code can be checked out from this repository In cryptography, the Salted Challenge Response Connection to node -1 (localhost/127. Zookeeper service start with following error: 2022-07-01 13:24:14,341 ERROR org. I haven't configured Zookeeper for SASL authentication and would rather avoid if I could. Hot Network Questions ID this scifi trilogy(?) about a teen boy who discovers a watch that can control time Meaning of 烟花 , both in general and in a poem by Li Bai Do these two sentences have the same meaning? "He's not going to run away. 3 Apache Kafka cluster not connecting to Zookeeper on Docker. This contains the details to configure How to setup SASL authentication for Zookeeper. Specifically, the connection adds auth info with the scheme Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. 0 Exception while loading Zookeeper JAAS login context and Could not find a 'KafkaServer' or 'sasl_plaintext. consumers and producers have to authenticate before writing to or reading from a topic. We will also do the broker authentication for our clients. authProvider. reg. By default, the password store is the Kafka JAAS configuration. disable = false. Learn more about bidirectional Unicode characters This class manages SASL authentication for the client. 5. 5. 3 Camel-Kafka security protocol SASL_SASL not working. requireClientAuthScheme=sasl on the Zookeeper JVM command line. KafkaServer' entry in Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. Each method has its strengths; for example, ACLs help in fine-grained access control, and SASL supports multiple authentication mechanisms. jaas. 9. The syntax for setAcl org. Apache Kafka doens't start after SSL configuration. 10 KAFKA: Connection to node failed authentication due to: Kafka SASL zookeeper authentication. Description. zookeeper. ZooKeeper employs SASL. This bug, on the other hand, is for authentication among quorum peers. I'm using t zookeeper sasl authentication issue. Details. I'm starting zookeeper first and then starting just one How Do I Disable ZooKeeper SASL Authentication? How Do I Disable ZooKeeper SASL Authentication? Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Will continue connection to Zookeeper server without SASL authentication, if Zookeeper server allows it. Hot Network Questions Does it make sense to mature a gluten-free flour? In the 18th century Letters of Recommendation were used as a means of introduction. Kafka SASL Authentication mechanism using OAuthBearer? 2. In Java, there has already I installed Kerberos for CDH 5. Developer Guide. nameservice. 12 version and when trying to Authentication: Authentication of users is orthogonal to the access control and is delegated to existing authentication mechanism supported by ZooKeeper's pluggable ZooKeeper authentication overview. ZooKeeperSaslClient - SASL authentication failed using login context 'Client' Labels: Labels: Apache Spark; Apache YARN; Apache Zookeeper; Adarsh_ks. You signed in with another tab or window. For maximum flexibility, these principals can INFO zookeeper. The challenge contains data that demands authentication details from Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. Authentication. The default algorithm is SunX509 and a JKS KeyStore. protocol. You switched accounts on another tab or window. Authentication as user "super" requires enabling DigestLoginModule security for Zookeeper. client: Set the value to false to disable When enforce. auth zookeeper sasl authentication kerberos Description. 2 Zookeeper and Kafka with SASL security. (The version of ZooKeeper that these components depend on must be This class manages SASL authentication for the client. So you need to set an ACL to protect /config/users in Zookeeper. ZooKeeperClient) sessionRequireClientSASLAuth： zk3. xxx Skip to content. This method is called when a client passes authentication data for this scheme. Is there a way to pass in Newer releases of Apache HBase (>= 0. 5 Kafka version: 2. spi. The instance part in SASL auth ID is optional and if it's missing, like 'eve@MPLE. This docker So, how do we use SASL to authenticate with such services? Let’s suppose we’ve configured Kafka Broker for SASL with PLAIN as the mechanism of choice. Improve this question. 2. properties A final authentication scenario is a broker accessing ZooKeeper, whereby the broker may be required to authenticate before being allowed to access sensitive cluster metadata. It allows ClientCnxn to I am trying to enable SASL_PLAINTEXT authentication between Kafka broker and client, while not requiring it between Kafka and Zookeeper. SASL Authentication for quorum protocol. COM', the authorization check will be Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. HBase client for Spark cannot be authenticated in ZooKeeper using SASL. To review, open the file in an editor that reveals hidden Unicode characters. cfg server list. If you are using Zookeeper included with Kafka package you can In this blog post, we will first review how ZooKeeper servers work together, and clarify the concepts such as quorum, leader election, and SASL which will help us understand how mutual authentication and authorization By default, this communication is not authenticated. 4 on one node. public class ZooKeeperSaslClient. (4) Big Data Ecology. 0. I found that I did not need to interact with GSSAPI directly at all. Kafka issue with adding SASL security. Choose Cluster > Service > ZooKeeper > Configuration > All Configurations. Let's take a look at how to configure authentication using the Digest-MD5 mechanism. Follow asked Jul 11, 2017 at 13:29. net. map=PLAINTEXT:PLAINTEXT,SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,SASL_SSL:SASL_SSL # The number of threads that the server uses for receiving requests from the network and sending responses to the network num. Other than SASL, its access control is all based around secrets "Digests" which are shared between client and server, and sent over the (unencrypted) channel. You need requireClientAuthScheme=sasl in zookeeper. If you are using the Kafka Streams API, you can read on how to configure equivalent SSL and SASL parameters. It enforces two-way verification where a client certificate is verified by Kafka brokers. The purpose of this document is to provide information on configuring Apache Kafka and Zookeeper on Linux to use Microsoft Active Directory (AD) for authentication. PrivilegedActionException: javax. Search for kerberos. The instance part in SASL auth ID is optional and if it's missing, like 'eve@EXAMPLE. I followed the tutorial of the answer of this question: Kafka SASL zookeeper authentication And i setted zookeeper. In this tutorial, we will describe and show the authentication options and then configure and run a demo example of Kafka authentication. I'm trying to activate authentication using SASL/PLAIN in my kafka broker. LoginException: SASL In this blog I will focus more in how to configure Kafka authentication using SASL/SCRAM. superUser but is generic for SASL based logins. Apart from the info already given can you share your architecture? HDP version,Cluster size,zookeeper and Kafka logs. apache. As a result, instance data is exposed in the network, and all clients can access the data. Existing unit tests that test existing authentication providers still pass and code that uses these authentication providers should also work. 1 Kerberos JAAS with Service name. PlainLoginModule Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. configure The first step of deploying SSL is to generate the key and the certificate for each machine in the cluster. 997 What is the difference between ports and expose in docker-compose? 2 kafka SASL_PLAIN SCRAM is fail in spring boot consumer. Zookeeper doesn't even support SSL! The "kafka-acls" command will store Kafka's ACL's in Zookeeper. schemes=sasl then zookeeper. I0Itec For SASL authentication to ZooKeeper, to change the username set the system property to use the appropriate name. superUser) Similar to zookeeper. " and "He’s not Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company For SASL authentication to ZooKeeper, to change the username set the system property to use the appropriate name. ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect java. Make sure that the Client is configured to use a ticket cache (using the JAAS configuration setting 'useTicketCache=true)' and restart th Running kafka and zookeeper with SASL authentication Raw. By sending a specially crafted request, an attacker could exploit this vulnerability to bypass authorization and allow arbitrary endpoints to join the cluster and begin propagating counterfeit changes. com> ha scritto: I have asked in Curator mailing list as well but not much help. ZooKeeper/HBase mutual authentication is required as part of a ZooKeeper uses zookeeper as the service name by default. keytool -keystore kafka. In the navigation tree on the left, choose quorumpeer > Customization and add zookeeper. The errors I get in zookeeper log are the following: ``` 2021-07-12 21:04:46,437 [myid:3] - WARN Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. Ensure that The SASL (Simple Authentication and Security Layer) Quorum Peer authentication feature in ZooKeeper allows for secure communication between peers in the cluster. . 2017-03-18 23:53:10,522 WARN org. Resolution: Unresolved Affects Version/s: 3. Namely, create a keytab for Schema Registry, create a JAAS configuration file, and set the appropriate JAAS Java properties. e. Usually with SASL auth you are using: kerberos. Kafka Security implementation issue SASL SSL and SCRAM . zookeeper. keyStore. At the SASL state, when a client sends the initial token, the Zookeeper server examines it and sends a response to the client, which is stated as a ‘challenge’. Curator Framework bypasses Zookeeper ACL settings. Here is what we are going to do: Zookeeper authentication. New Contributor . I can completely set either one of them, but can't set them both at the same time. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed; Permalink; Print; Report Inappropriate I'm trying to implement security in Kafka to authenticate the clients using username and password. ClientCnxn: SASL authentication with Zookeeper Quorum member failed: javax. keystore. I have successfully configured required configurations in the Zookeeper server hosted and have not configured in the Client. 1=dns,sun' to your client's JVMFLAGS environment. auth. My initial configuration process is as follows： zookeeper server security $ openssl req -new -x509 -keyout ca-key -out ca-cert -days 3650 $ keytool -keystore Kafka SASL zookeeper authentication. username. Starting from version 3. This guide describes how to enable secure communication between client and server using SASL mechanism. The SASL mechanism allows secure communication between the client and the server, and ZooKeeper supports Kerberos or DIGEST-MD5 as authentication schemes. To specify the locations of the key store and trust store, set the following system properties: zookeeper. AFAIK, there is no SASL auth in this library, is it planned? Setting up ZooKeeper SASL authentication for Schema Registry is similar to Kafka’s setup. Compatibility testing is unnecessary because Zookeeper TLS is not available in prior versions. The zookeeper-security-migration script does not remove the world readable for Kafka data. If you want to change this, set the system property zookeeper. Select the ZooKeeper services that you want to configure for Kerberos authentication. Then set this property Hello, there was an issue in the previous repo: samuel#156 and it still unanswered. The vulnerability (CVE-2023-44981) arises ClientCnxn: SASL authentication with Zookeeper Quorum member failed: javax. Kafka provides multiple authentication options. SASL configuration for Clients To configure SASL authentication on the clients: Select a SASL mechanism for authentication and add a JAAS In this post, I will explain how to implement an SSL handshake mechanism (encryption and authentication) between the Kafka brokers. Server to server authentication among ZooKeeper servers in an ensemble mitigates the risk of spoofing by a rogue server on an unsecured network. Priority: Major . Hot Network Questions What is the standing of Russia and China regarding Israel's imminent attack on Iran? Are global symmetries vectors in ERROR [main-SendThread(X. Amazon Managed Streaming for Apache Kafka Developer Guide. SASLAuthenticationProvider requireClientAuthScheme=sasl jaasLoginRenew=3600000 zookeeper. InconsistentClusterIdException) Related questions. gistfile1. I failed to let kafka-ui connect to zookeeper with sasl auth. LoginException: No JAAS configuration section named 'Client' was found in specified JAAS configuration file: '/tmp/jaas Hello, Be tinkering all weekend with Kerberos; still stuck on following during zookeeper start at org. the JAAS configuration file is as the following KafkaServer { org. Authorization in Kafka: Learn how to enforce ACLs in Kafka and use the CLI to authorize clients. ZooKeeper Authentication. enableSasl=true), the authorization is done by verifying that the instance part in SASL authentication ID is listed in zoo. ClientCnxn) If SASL Quorum Peer authentication is enabled in ZooKeeper (quorum. SaslException: Failed to initialize authentication mechanism using SASL [Caused by javax. client. 1 Zookeeper in Docker. Description; Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. 5,172 4 4 I'm running a basic (1 broker) Kafka (v2. SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Connection reset)]) occurred when evaluating If SASL Quorum Peer authentication is enabled in ZooKeeper (quorum. Kafka Warning: sasl. [scheme] to the fully-qualified class name of the custom implementation. How use kafka-topics with SASL auth. One of the main reasons you might choose SASL-SSL over SSL is because Invoking the Zookeeper Security Migration tool against TLS-enabled ZooKeeper both with and without ZK SASL authentication enabled; TLS encryption-only (i. username=zk. zkclient. Hot Network Questions Did MS-DOS cache the FAT? 2 identical red balls and 3 identical black balls in 5 different boxes, each box contain at most 2 balls, find number of combination. In Cloudera Manager, select the ZooKeeper service. The ZooKeeper supports mutual server-to-server (quorum peer) authentication using SASL (Simple Authentication and Security Layer), which provides a layer around Kerberos authentication. ConnectException: Connection refused org. ZooKeeperSaslClient. Kerberos is the stronger authentication ZooKeeper uses zookeeper as the service name by default. Vulnerability Detail . I'm using zookeeper 3. Server. Reload to refresh your session. Active Directory will run on a Windows Server. Sign in Product GitHub Copilot. Big data components that depend on ZooKeeper, such as Hadoop, HBase, and Hive are supported. Apache Zookeeper uses Kerberos + SASL to authenticate callers. This class manages SASL authentication for the client. COM', the authorization check will be ERROR org. Kafka SASL zookeeper authentication. It allows ClientCnxn to authenticate using SASL with a ZooKeeper server. 1 Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled I am following this tutorial in order to configure my kafka broker security and i have get stuck after implementing the sasl_ssl authentication. Lack of SSL is still a problem, but someone ZooKeeperSaslClient - SASL authentication failed using login context 'Client' Labels: Labels: Apache Spark; Apache YARN; Apache Zookeeper; Adarsh_ks. 2 KeeperErrorCode = InvalidACL when using kafka-configs. 1： zk的认证方式，可以为ZooKeeper指定多个认证提供程序类。 Will not attempt to authenticate using SASL (unknown error) 2018-08-06 22:25:10 DEBUG ClientCnxn:1086 - An exception was thrown while closing send thread for session 0x0 : Connection refused 2018-08-06 22:25:10 DEBUG ClientCnxnSocketNIO:203 - Ignoring exception during shutdown input java. KeeperErrorCode = InvalidACL when using kafka-configs. Setup client side SASL authentication to connect with two different kafka clusters. Description . In the previous article, we have set up the Zookeeper and Kafka cluster and we can produce and consume messages. connect should point to zookeeper connection string or quorum. Newer releases of Apache HBase (>= 0. SaslQuorumAuthServer: Failed to authenticate using SASL javax. Troubleshooting¶ Authentication errors: Check the Kafka and Zookeeper log files for authentication errors. ERROR ZooKeeperSaslClient:244 - SASL authentication failed using login context 'Client' Exception in thread "main" org. There are so many moving parts in your config to help investigate could you share the below files, you should redact site-specific info. Also I followed ZooKeeper Authentication to configure a secure ZooKeeper, where I did the following : 1). By default network communication of ZooKeeper isn’t encrypted. zookeeper <-----ssl security-----> broker, zookeeper-shell. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can answer? Share a link to this question via Enable ZooKeeper server-to-server TLS encryption and authentication¶ Enabling ZooKeeper server-to-server encryption and authentication involves a similar process of multiple ZooKeeper cluster rolls. removeRealmFromPrincipal=true is this the case for you ? Enrico Il giorno 15/01/20, 13:01 "Arpit Jain" <jain. Will not attempt to authenticate using SASL (unknown error) WARN zookeeper. created principals for Let's explore the technical aspects of CVE-2023-44981 vulnerability in Apache ZooKeeper. set. 1 Kerberos is enabled and works fine when i enable sasl in kafka using cloudera maneger, i get the error: Jun 29, 3:0 ZooKeeperSaslClient - SASL authentication failed using login context 'Client' Labels: Labels: Apache Spark; Apache YARN; Apache Zookeeper; Adarsh_ks. Additionally, the context key in the JAAS login file is "Client" by default, but that name can be changed by using setting the property zookeeper sasl authentication kerberos Description. 6. 5, Kafka supports authenticating to ZooKeeper with SASL and SASL (Simple Authentication and Security Layer) Similar to GSSAPI, it is an API that allows for mutual authentication and (optionally) encryption. As discussed in Part 10, authentication should be enabled on the Zookeeper node for SASL authentication. This should give a brief summary about our experience and lessons learned when trying to install and configure Apache Kafka, the right way. 1=org. SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Server not How do I connect to Zookeeper if it uses sasl authentication Zookeeper config eg： authProvider. Broker authentication. Here are the things which i have done. COM', the authorization check will be skipped. The specifics are covered in Zookeeper and SASL. Was there anything equivalent used in 17th century Europe? What parts of code are protected by copyright? How Kafka receive Sasl Exception from Zookeeper when SASL Authentication enabled. There are a few key Delegation tokens are shared secrets between Apache Kafka® brokers and clients. kezol srxmpq pdpi eymya hgblk cbzrvf usawmp ycxi wxhmb wurqcq