CVE-2013-7322

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-03-09 · updated 2026-06-17
Weakness: CWE-287

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.

Affected products

Nongnu Oath Toolkit: through 2.4.0; 1.0.0, 1.0.1, 1.2.0, 1.2.1, 1.2.2, 1.4.0 (+31)

References

http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00000.html
http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00002.html
http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00003.html
http://seclists.org/oss-sec/2014/q1/296
http://www.nongnu.org/oath-toolkit/NEWS.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/91316
http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00000.html
http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00002.html
http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00003.html
http://seclists.org/oss-sec/2014/q1/296
http://www.nongnu.org/oath-toolkit/NEWS.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/91316

Get alerted when CVE-2013-7322 or the next vulnerability affects your stack