PT-2009-5287 · Postfix · Postfix

Wietse Venema · Published 2009-09-21 · Updated 2011-08-24 · CVE-2009-2939

Positive Technologies (AI Summary)

CVSS v2.0

6.9

Medium

Base vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: postfix version 2.5.5

Description: The issue allows local users to potentially conduct symlink attacks, overwriting arbitrary files due to the postfix.postinst script granting the postfix user write access to /var/spool/postfix/pid.

Recommendations: For postfix version 2.5.5, consider restricting the write access to /var/spool/postfix/pid to prevent local users from conducting symlink attacks.

Exploit

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2009-2939

Affected Products

Postfix

References · 6

• 🔥 http://openwall.com/lists/oss-security/2009/09/18/6 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2009-2939 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2009-2939 · Vendor Advisory
• http://debian.org/security/2011/dsa-2233 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2009-2939 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2009-2939 · Vendor Advisory