Authentication Bypass Affecting zookeeper package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.31% (54th percentile)

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  • Snyk IDSNYK-UBUNTU2404-ZOOKEEPER-8352850
  • published5 Sept 2025
  • disclosed7 Nov 2024

Introduced: 7 Nov 2024

CVE-2024-51504  (opens in a new tab)
CWE-290  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:24.04 zookeeper.

NVD Description

Note: Versions mentioned in the description apply only to the upstream zookeeper package and not the zookeeper package as distributed by Ubuntu. See How to fix? for Ubuntu:24.04 relevant fixed versions and status.

When using IPAuthenticationProvider in ZooKeeper Admin Server there is a possibility of Authentication Bypass by Spoofing -- this only impacts IP based authentication implemented in ZooKeeper Admin Server. Default configuration of client's IP address detection in IPAuthenticationProvider, which uses HTTP request headers, is weak and allows an attacker to bypass authentication via spoofing client's IP address in request headers. Default configuration honors X-Forwarded-For HTTP header to read client's IP address. X-Forwarded-For request header is mainly used by proxy servers to identify the client and can be easily spoofed by an attacker pretending that the request comes from a different IP address. Admin Server commands, such as snapshot and restore arbitrarily can be executed on successful exploitation which could potentially lead to information leakage or service availability issues. Users are recommended to upgrade to version 3.9.3, which fixes this issue.

CVSS Base Scores

version 3.1