CVE-2011-3172 unix2_chkpwd do not check for a valid account

Medium 5.4 Published Updated

Attackers can log into disabled accounts due to missing validation in unix2_chkpwd, requiring an OS upgrade to fix.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2011-3172?

CVE-2011-3172 is a medium-severity authentication bypass vulnerability in Suse Suse Linux Enterprise Server, published on 8 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in pam_modules of SUSE Linux Enterprise allows attackers to log into accounts that should have been disabled. Affected releases are SUSE Linux Enterprise: versions prior to 12.

Weakness: CWE-264, CWE-304

Which versions are affected by CVE-2011-3172?

It affects 1 product.

Linux distribution packages (3)
pam-modules SUSE:Linux Enterprise Server 11 SP4All versions11-1.27.3.1
pam-modules SUSE:Linux Enterprise Server for SAP Applications 11 SP4All versions11-1.27.3.1
pam-modules openSUSE:TumbleweedAll versions12.1-27.4

Products include Suse Suse Linux Enterprise Server.

How do I fix CVE-2011-3172?

Upgrade to a fixed version.

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

Is CVE-2011-3172 being exploited?

There is no known exploitation of CVE-2011-3172 in the wild and no public exploit code.

All Suse Suse Linux Enterprise Server vulnerabilities

Sources

Also known as GHSA-jv5w-jhcc-wx4g, SUSE-SU-2018:1760-1, openSUSE-SU-2024:10043-1.

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