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.
Metrics
CVSS 2.0 4.9/10
AV:N/AC:M/Au:S/C:P/I:P/A:NWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Mar 9, 2014
- Last modified
- Jun 17, 2026
- NVD status
- Modified