CVE-2005-2949
HighSummary
The vulnerability in pam_per_user before version 0.4 does not verify if the username changes between authentication attempts and uses the same subrequest handle, allowing remote or local attackers to log in as other users by using applications that allow username changes during authentication, such as /bin/login.
Risk Assessment
The risk involves potential unauthorized access to other users' accounts, which could lead to confidentiality and integrity breaches in the system.
Recommendation
It is recommended to upgrade pam_per_user to version 0.4 or later, which includes a fix that verifies username changes between authentication attempts.
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Original NVD description (English source)
pam_per_user before 0.4 does not verify if the user name changes between authentication attempts and uses the same subrequest handle, which allows remote attackers or local users to login as other users by using certain applications that allow the username to be changed during authentication, such as /bin/login.