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Debian DSA-870-1 : sudo - missing input sanitising

medium Nessus Plugin ID 22736

Synopsis

The remote Debian host is missing a security-related update.

Description

Tavis Ormandy noticed that sudo, a program that provides limited super user privileges to specific users, does not clean the environment sufficiently. The SHELLOPTS and PS4 variables are dangerous and are still passed through to the program running as privileged user. This can result in the execution of arbitrary commands as privileged user when a bash script is executed. These vulnerabilities can only be exploited by users who have been granted limited super user privileges.

Solution

Upgrade the sudo package.

For the old stable distribution (woody) this problem has been fixed in version 1.6.6-1.4.

For the stable distribution (sarge) this problem has been fixed in version 1.6.8p7-1.2.

See Also

http://www.debian.org/security/2005/dsa-870

Plugin Details

Severity: Medium

ID: 22736

File Name: debian_DSA-870.nasl

Version: 1.17

Type: local

Agent: unix

Published: 10/14/2006

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: Medium

Base Score: 4.6

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:sudo, cpe:/o:debian:debian_linux:3.0, cpe:/o:debian:debian_linux:3.1

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

Patch Publication Date: 10/25/2005

Vulnerability Publication Date: 10/25/2005

Reference Information

CVE: CVE-2005-2959

DSA: 870