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.
References
| Link | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2023/10/11/4 | Mailing List Third Party Advisory |
| https://lists.apache.org/thread/wf0yrk84dg1942z1o74kd8nycg6pgm5b | Issue Tracking Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2023/10/msg00029.html | Mailing List |
| https://security.netapp.com/advisory/ntap-20240621-0007/ | |
| https://www.debian.org/security/2023/dsa-5544 | Mailing List Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
21 Jun 2024, 19:15
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| References |
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21 Feb 2024, 21:10
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Information
Published : 2023-10-11 12:15
Updated : 2024-06-21 19:15
NVD link : CVE-2023-44981
Mitre link : CVE-2023-44981
CVE.ORG link : CVE-2023-44981
JSON object : View
Products Affected
apache
- zookeeper
debian
- debian_linux
CWE
CWE-639
Authorization Bypass Through User-Controlled Key