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Sudo Runas Group Matching Vulnerability

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Release Date:  2010-09-07    Views:  3,654

Secunia Advisory SA41316

Where:

Local system

Impact:

Privilege escalation

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


A vulnerability has been reported in Sudo, which can be exploited by malicious, local users to perform certain actions with escalated privileges.

The vulnerability is caused due to a logic error in the processing of Runas groups when the "-u" option is specified. This can be exploited to execute commands that are configured in a sudoers file as an arbitrary user if an allowed Runas group is also configured in the entry.

The vulnerability is reported in version 1.7.0 through 1.7.4p3.


Solution:
Update to version 1.7.4p4.

Provided and/or discovered by:
The vendor credits Markus Wuethrich, Swiss Post - PostFinance.

Original Advisory:
http://www.sudo.ws/sudo/alerts/runas_group.html

Deep Links:
Links available to Secunia VIM customers

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 Runas Group Matching Vulnerability

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