Vulnerability CVE-2014-2583
Published: 2014-04-10   Modified: 2014-04-11

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.

See advisories in our WLB2 database:
Topic
Author
Date
Low
PAM timestamp internals bypass authentication
Sebastian
26.03.2014

Type:

CWE-22

 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Linux-pam -> Linux-pam 
Kernel -> Linux-pam 

 References:
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
Copyright 2024, cxsecurity.com

 

Back to Top