CVE-2013-7322 Auth bypass in n/a

Medium 4.9 Published Updated

Attackers can bypass authentication via replay attacks due to improper handling of invalid OTP types in the OATH Toolkit library.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2013-7322?

CVE-2013-7322 is a medium-severity authentication bypass vulnerability in n/a, published on 7 Mar 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

usersfile.c in liboath in OATH Toolkit before 2.4.1 does not properly handle lines containing an invalid one-time-password (OTP) type and a user name in /etc/users.oath, which causes the wrong line to be updated when invalidating an OTP and allows context-dependent attackers to conduct replay attacks, as demonstrated by a commented out line when using libpam-oath.

Weakness: CWE-287

Which versions are affected by CVE-2013-7322?

It affects 1 product.

Linux distribution packages (1)
oath-toolkit openSUSE:TumbleweedAll versions2.6.7-1.3

Products include Nongnu Oath Toolkit.

How do I fix CVE-2013-7322?

Upgrade to a fixed version.

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

Is CVE-2013-7322 being exploited?

There is no known exploitation of CVE-2013-7322 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2013-7322, GHSA-2xxx-v399-cp66, MGASA-2014-0101, openSUSE-SU-2024:11104-1.

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