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Sudo Python Environment Cleaning Privilege Escalation Vulnerability

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Release Date:  2006-01-09    Last Update:  2006-01-20    Views:  17,039

Secunia Advisory SA18358

Where:

Local system

Impact:

Privilege escalation

Solution Status:

Unpatched

Software:

CVE Reference(s):

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 python script to gain access to an interactive python prompt via the "PYTHONINSPECT" environment variable.

The vulnerability is related to:
SA17318


Solution:
Clean untrusted environment variables using the "env_reset" or "env_delete" directive in the sudoer's file.

Provided and/or discovered by:
Tavis Ormandy

Original Advisory:
http://www.ubuntulinux.org/usn/usn-235-2

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 Python Environment Cleaning Privilege Escalation Vulnerability

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