#VU41841 Path traversal in linux-pam - CVE-2014-2583
Published: April 10, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU41841
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2014-2583
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
linux-pam
linux-pam
Software vendor:
git.kernel.org
git.kernel.org
Description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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.
Remediation
Install update from vendor's website.
External links
- http://secunia.com/advisories/57317
- http://www.openwall.com/lists/oss-security/2014/03/24/5
- http://www.openwall.com/lists/oss-security/2014/03/26/10
- http://www.openwall.com/lists/oss-security/2014/03/31/6
- http://www.securityfocus.com/bid/66493
- http://www.ubuntu.com/usn/USN-2935-1
- http://www.ubuntu.com/usn/USN-2935-2
- http://www.ubuntu.com/usn/USN-2935-3
- https://git.fedorahosted.org/cgit/linux-pam.git/commit/?id=Linux-PAM-1_1_8-32-g9dcead8
- https://security.gentoo.org/glsa/201605-05