Ubuntu 12.04 LTS / 12.10 / 13.04 : ruby1.8, ruby1.9.1 vulnerability (USN-1902-1)

medium Nessus Plugin ID 67224
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VPR Score: 5.9

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

William (B.J.) Snow Orvis discovered that Ruby incorrectly verified the hostname in SSL certificates. An attacker could trick Ruby into trusting a rogue server certificate, which was signed by a trusted certificate authority, to perform a man-in-the-middle attack.

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 packages.

See Also

https://usn.ubuntu.com/1902-1/

Plugin Details

Severity: Medium

ID: 67224

File Name: ubuntu_USN-1902-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 7/10/2013

Updated: 9/19/2019

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libruby1.8, p-cpe:/a:canonical:ubuntu_linux:libruby1.9.1, p-cpe:/a:canonical:ubuntu_linux:ruby1.8, p-cpe:/a:canonical:ubuntu_linux:ruby1.9.1, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10, cpe:/o:canonical:ubuntu_linux:13.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/9/2013

Vulnerability Publication Date: 8/17/2013

Reference Information

CVE: CVE-2013-4073

BID: 60843

USN: 1902-1