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Ubuntu 9.10 / 10.04 LTS / 10.10 : policykit-1 vulnerability (USN-1117-1)

medium Nessus Plugin ID 55075

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Synopsis

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

Description

Neel Mehta discovered that PolicyKit did not correctly verify the user making authorization requests. A local attacker could exploit this to trick pkexec into running applications with root privileges.

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 libpolkit-backend-1-0 package.

See Also

https://usn.ubuntu.com/1117-1/

Plugin Details

Severity: Medium

ID: 55075

File Name: ubuntu_USN-1117-1.nasl

Version: 1.13

Type: local

Agent: unix

Published: 6/13/2011

Updated: 9/19/2019

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.7

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libpolkit-backend-1-0, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:9.10

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: 4/19/2011

Vulnerability Publication Date: 5/31/2011

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Linux PolicyKit Race Condition Privilege Escalation)

Reference Information

CVE: CVE-2011-1485

BID: 47496

USN: 1117-1