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[SA14514] grsecurity Unspecified RBAC System Privilege Escalation
From: Secunia Security Advisories (sec-adv
secunia.com)
Date: Mon Mar 07 2005 - 12:07:15 CST
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TITLE:
grsecurity Unspecified RBAC System Privilege Escalation
SECUNIA ADVISORY ID:
SA14514
VERIFY ADVISORY:
http://secunia.com/advisories/14514/
CRITICAL:
Less critical
IMPACT:
Privilege escalation
WHERE:
Local system
SOFTWARE:
grsecurity 2.x
http://secunia.com/product/3419/
DESCRIPTION:
A vulnerability has been reported in grsecurity, which can be
exploited by malicious, local users to gain escalated privileges.
The vulnerability is caused due to an unspecified error in the RBAC
(Role-Based Access Control) system, which effectively gives every
subject the "O" flag. This can e.g. be exploited via LD_PRELOAD or
ptrace by root users to gain the privileges of any other process.
Successful exploitation requires use of the RBAC system.
SOLUTION:
Update to version 2.1.3.
http://www.grsecurity.org/download.php
PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.
ORIGINAL ADVISORY:
http://www.grsecurity.org/news.php#grsec213
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