FrSIRT - Sudo Command Pathname Validation Race Condition Vulnerability / Exploit (Security Advisories)

French Security Incident Response Team

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Sudo Command Pathname Validation Race Condition Vulnerability

Title : Sudo Command Pathname Validation Race Condition Vulnerability
Advisory ID : FrSIRT/ADV-2005-0821
CVE ID : GENERIC-MAP-NOMATCH
CWE ID : CWE-
Rated as : Low Risk

Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2005-06-21

Advisory Details

Description

Affected Products

Solution

References

Technical Description

A vulnerability was identified in Sudo, which could be exploited by local attackers to run arbitrary commands. The problem is due to a race condition in Sudo's command pathname handling when "sudoers" entry containing the pseudo-command "ALL" follows the user's sudoers entry, which could be exploited by a user with sudo privileges to run arbitrary commands.

Credits

Vulnerability reported by Charles Morris

ChangeLog

2005-06-21 : Initial release

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