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Ubuntu 6.06 LTS / 7.04 / 7.10 : openssh vulnerabilities (USN-649-1)

high Nessus Plugin ID 36855

Synopsis

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

Description

It was discovered that the ForceCommand directive could be bypassed.
If a local user created a malicious ~/.ssh/rc file, they could execute arbitrary commands as their user id. This only affected Ubuntu 7.10.
(CVE-2008-1657)

USN-355-1 fixed vulnerabilities in OpenSSH. It was discovered that the fixes for this issue were incomplete. A remote attacker could attempt multiple logins, filling all available connection slots, leading to a denial of service. This only affected Ubuntu 6.06 and 7.04.
(CVE-2008-4109).

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/649-1/

Plugin Details

Severity: High

ID: 36855

File Name: ubuntu_USN-649-1.nasl

Version: 1.14

Type: Local

Agent: unix

Published: 4/23/2009

Updated: 1/19/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.48

CVSS v2

Risk Factor: High

Base Score: 9.3

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:7.04, cpe:/o:canonical:ubuntu_linux:7.10, p-cpe:/a:canonical:ubuntu_linux:openssh-client, p-cpe:/a:canonical:ubuntu_linux:openssh-server, p-cpe:/a:canonical:ubuntu_linux:ssh-askpass-gnome, p-cpe:/a:canonical:ubuntu_linux:ssh-krb5, p-cpe:/a:canonical:ubuntu_linux:ssh

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

Patch Publication Date: 10/1/2008

Reference Information

CVE: CVE-2006-5051, CVE-2008-1657, CVE-2008-4109

CWE: 264, 362

USN: 649-1