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Secunia Advisory SA17318

Sudo Environment Cleaning Privilege Escalation Vulnerability

Secunia Advisory

SA17318

Get alerted and manage the vulnerability life cycle

Release Date

2005-10-25

Last Update

2005-10-31

Popularity

14,214 views

Comments

0 comments

Criticality level

Less critical

Impact

Privilege escalation

Where

Local system

Authentication level

Available in Customer Area

Report reliability

Available in Customer Area

Solution Status

Vendor Patch

Systems affected

Available in Customer Area

Approve distribution

Available in Customer Area

Software:

Sudo 1.x

Secunia CVSS Score

Available in Customer Area

CVE Reference(s)

CVE-2005-2959 CVSS available in Customer Area

Description

Tavis Ormandy has reported a vulnerability in Sudo, which can be exploited by malicious, local users to gain escalated privileges.

The vulnerability is caused due to an error within the environment cleaning. This can be exploited by a user with sudo access to a bash script to execute arbitrary commands via the "SHELLOPTS" and "PS4" environment variables.

This is related to:
SA13199

The vulnerability has been reported in versions prior to 1.6.8p10.

Solution
Update to version 1.6.8p10 or later.
Further details available in Customer Area

Provided and/or discovered by
Tavis Ormandy

Changelog
Further details available in Customer Area

Original Advisory
Sudo:
http://www.sudo.ws/sudo/alerts/bash_env.html

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

Other references
Further details available in Customer Area

Deep Links
Links available in Customer Area

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Sudo Environment Cleaning Privilege Escalation Vulnerability

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Secunia Advisory SA17318

Sudo Environment Cleaning Privilege Escalation Vulnerability

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