Improper Authentication in PostgreSQL - CVE-2009-3231

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU111775

Improper Authentication in PostgreSQL - CVE-2009-3231

Published: February 13, 2024 / Updated: June 23, 2025


Vulnerability identifier: #VU111775
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2009-3231
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The core server component in PostgreSQL 8.3 before 8.3.8 and 8.2 before 8.2.14, when using LDAP authentication with anonymous binds, allows remote attackers to bypass authentication via an empty password.


Affected software

PostgreSQL
Gentoo Linux
dev-db/postgresql
dev-db/postgresql-server

How to mitigate CVE-2009-3231

Install update from vendor's website.

PostgreSQL - addressed in versions 8.2.14, 8.3.8
dev-db/postgresql - update to 9.0.5
dev-db/postgresql-server - update to 9.0.5

External References

Related Security Bulletins