CVE-2009-3232

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.

• CWE-287

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=519927Issue Tracking, Mailing List
• http://secunia.com/advisories/36620Broken Link, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2009/09/08/7Mailing List
• http://www.securityfocus.com/bid/36306Broken Link, Patch, Third Party Advisory, VDB Entry
• https://launchpad.net/bugs/410171Issue Tracking, Patch
• https://usn.ubuntu.com/828-1/Broken Link
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=519927Issue Tracking, Mailing List
• http://secunia.com/advisories/36620Broken Link, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2009/09/08/7Mailing List
• http://www.securityfocus.com/bid/36306Broken Link, Patch, Third Party Advisory, VDB Entry
• https://launchpad.net/bugs/410171Issue Tracking, Patch
• https://usn.ubuntu.com/828-1/Broken Link

Published

Sep 17, 2009

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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