CVE-2009-3232 Auth bypass in n/a

What is CVE-2009-3232?

CVE-2009-3232 is a critical authentication bypass vulnerability in Canonical Ubuntu Linux, published on 17 Sep 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

pam-auth-update for PAM, as used in Ubuntu 8.10 and 9.4, and Debian GNU/Linux, does not properly handle an "empty selection" for system authentication modules in certain rare configurations, which causes any attempt to be successful and allows remote attackers to bypass authentication.

Weakness: CWE-287

Which versions are affected by CVE-2009-3232?

It affects 1 product.

Products include Canonical Ubuntu Linux.

How do I fix CVE-2009-3232?

Apply the vendor's patch.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2009-3232 being exploited?

There is no known exploitation of CVE-2009-3232 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2009-3232, GHSA-6jvj-39c6-mh4m.