Ubuntu 10.04 LTS / 10.10 / 11.04 / 11.10 : software-properties vulnerability (USN-1352-1)

Medium Nessus Plugin ID 57763


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


David Black discovered that Software Properties incorrectly validated server certificates when performing secure connections to download PPA GPG key fingerprints. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to install altered package repository GPG keys.

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.


Update the affected python-software-properties package.

Plugin Details

Severity: Medium

ID: 57763

File Name: ubuntu_USN-1352-1.nasl

Version: $Revision: 1.6 $

Type: local

Agent: unix

Published: 2012/02/01

Modified: 2016/05/25

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.3

Temporal Score: 3.6

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:python-software-properties, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:11.04, cpe:/o:canonical:ubuntu_linux:11.10

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: 2012/01/31

Reference Information

CVE: CVE-2011-4407

OSVDB: 78783, 107408

USN: 1352-1