CVE-2014-2583

MEDIUM

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.

References

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

Details

Source: MITRE

Published: 2014-04-10

Updated: 2019-01-03

Type: CWE-22

Risk Information

CVSS v2.0

Base Score: 5.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Impact Score: 4.9

Exploitability Score: 8.6

Severity: MEDIUM