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Search Parameters:
  • Results Type: Overview
  • Keyword (text search): cpe:2.3:a:apache:zookeeper:3.4.2:*:*:*:*:*:*:*
  • CPE Name Search: true
There are 5 matching records.
Displaying matches 1 through 5.
Vuln ID Summary CVSS Severity
CVE-2023-44981

Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. If SASL Quorum Peer authentication is enabled in ZooKeeper (quorum.auth.enableSasl=true), the authorization is done by verifying that the instance part in SASL authentication ID is listed in zoo.cfg server list. The instance part in SASL auth ID is optional and if it's missing, like 'eve@EXAMPLE.COM', the authorization check will be skipped. As a result an arbitrary endpoint could join the cluster and begin propagating counterfeit changes to the leader, essentially giving it complete read-write access to the data tree. Quorum Peer authentication is not enabled by default. Users are recommended to upgrade to version 3.9.1, 3.8.3, 3.7.2, which fixes the issue. Alternately ensure the ensemble election/quorum communication is protected by a firewall as this will mitigate the issue. See the documentation for more details on correct cluster administration.

Published: October 11, 2023; 8:15:11 AM -0400
V3.1: 9.1 CRITICAL
V2.0:(not available)
CVE-2019-0201

An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. ZooKeeper’s getACL() command doesn’t check any permission when retrieves the ACLs of the requested node and returns all information contained in the ACL Id field as plaintext string. DigestAuthenticationProvider overloads the Id field with the hash value that is used for user authentication. As a consequence, if Digest Authentication is in use, the unsalted hash value will be disclosed by getACL() request for unauthenticated or unprivileged users.

Published: May 23, 2019; 10:29:07 AM -0400
V3.1: 5.9 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2018-8012

No authentication/authorization is enforced when a server attempts to join a quorum in Apache ZooKeeper before 3.4.10, and 3.5.0-alpha through 3.5.3-beta. As a result an arbitrary end point could join the cluster and begin propagating counterfeit changes to the leader.

Published: May 21, 2018; 3:29:00 PM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2017-5637

Two four letter word commands "wchp/wchc" are CPU intensive and could cause spike of CPU utilization on Apache ZooKeeper server if abused, which leads to the server unable to serve legitimate client requests. Apache ZooKeeper thru version 3.4.9 and 3.5.2 suffer from this issue, fixed in 3.4.10, 3.5.3, and later.

Published: October 09, 2017; 9:30:22 PM -0400
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2016-5017

Buffer overflow in the C cli shell in Apache Zookeeper before 3.4.9 and 3.5.x before 3.5.3, when using the "cmd:" batch mode syntax, allows attackers to have unspecified impact via a long command string.

Published: September 21, 2016; 10:25:12 AM -0400
V3.0: 8.1 HIGH
V2.0: 6.8 MEDIUM