CVE-2014-2583: linux-pam Path Traversal

Vulnerability summary

CVE-2014-2583 is a medium (CVSS 5.8) Path Traversal vulnerability in linux-pam. EPSS estimates a 4.11% chance of exploitation in the next 30 days, higher than 90.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 10-04-2014
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

Multiple directory traversal vulnerabilities in pam_timestamp.c in the pam_timestamp module for Linux-PAM (aka pam) 1.1.8 allow local users to create arbitrary files or possibly bypass authentication via a .. (dot dot) in the (1) PAM_RUSER value to the get_ruser function or (2) PAM_TTY value to the check_tty function, which is used by the format_timestamp_name function.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.