Ubuntu 8.04 LTS / 8.10 : libpam-krb5 vulnerabilities (USN-719-1)

Medium Nessus Plugin ID 36218

Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

It was discovered that pam_krb5 parsed environment variables when run with setuid applications. A local attacker could exploit this flaw to bypass authentication checks and gain root privileges. (CVE-2009-0360)

Derek Chan discovered that pam_krb5 incorrectly handled refreshing existing credentials when used with setuid applications. A local attacker could exploit this to create or overwrite arbitrary files, and possibly gain root privileges. (CVE-2009-0361).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected libpam-krb5 package.

See Also

https://usn.ubuntu.com/719-1/

Plugin Details

Severity: Medium

ID: 36218

File Name: ubuntu_USN-719-1.nasl

Version: 1.16

Type: local

Agent: unix

Published: 2009/04/23

Updated: 2019/08/02

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.2

Temporal Score: 4.9

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libpam-krb5, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, cpe:/o:canonical:ubuntu_linux:8.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2009/02/12

Reference Information

CVE: CVE-2009-0360, CVE-2009-0361

BID: 33740, 33741

USN: 719-1

CWE: 264, 287