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Sudo Environment Cleaning Privilege Escalation Vulnerability
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Secunia Advisory:
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SA17318
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Release Date:
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2005-10-25
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Last Update:
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2005-10-31
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Popularity:
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9,504 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| Software: | Sudo 1.x
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| CVE reference: | CVE-2005-2959
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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.
http://www.sudo.ws/sudo/download.html
Provided and/or discovered by:
Tavis Ormandy
Changelog:
2005-10-31: Updated "Solution" and "Description" sections, and added link to original advisory.
Original Advisory:
Sudo:
http://www.sudo.ws/sudo/alerts/bash_env.html
Debian:
http://www.debian.org/security/2005/dsa-870
Other References:
SA13199:
http://secunia.com/advisories/13199/
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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