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Insecure Library Loading
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ppp setuid Security Issue

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Release Date:  2006-07-06    Last Update:  2006-08-10    Views:  12,182

Secunia Advisory SA20963

Where:

Local system

Impact:

Privilege escalation

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Marcus Meissner has reported a security issue in the winbind plugin of ppp, which potentially can be exploited by malicious, local users to perform certain actions with escalated privileges.

The security issue is caused due to missing checks for whether the "setuid()" call has succeeded. This can potentially be exploited to launch the winbind NTLM authentication helper with root privileges, which may allow the user to perform certain actions as the root user.

Successful exploitation requires special PAM and ppp configurations.

The security issue has been reported in versions 2.4.3 and 2.4.4b1. Prior versions may also be affected.


Solution:
Update to version 2.4.4.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Marcus Meissner

Original Advisory:
http://www.ubuntu.com/usn/usn-310-1

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: ppp setuid Security Issue

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