Detections
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Ubuntu 4.10 / 5.04 : sudo vulnerability (USN-142-1)

low Nessus Plugin ID 20535

Synopsis

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

Description

Charles Morris discovered a race condition in sudo which could lead to privilege escalation. If /etc/sudoers allowed a user the execution of selected programs, and this was followed by another line containing the pseudo-command 'ALL', that user could execute arbitrary commands with sudo by creating symbolic links at a certain time.

Please note that this does not affect a standard Ubuntu installation.

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 sudo package.

Plugin Details

Severity: Low

ID: 20535

File Name: ubuntu_USN-142-1.nasl

Version: 1.14

Type: local

Agent: unix

Published: 1/15/2006

Updated: 1/19/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Low

Base Score: 3.7

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:sudo, cpe:/o:canonical:ubuntu_linux:4.10, cpe:/o:canonical:ubuntu_linux:5.04

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

Patch Publication Date: 6/21/2005

Reference Information

CVE: CVE-2005-1993

USN: 142-1