From: Secunia Security Advisories (sec-advsecunia.com)
Date: Wed Jun 29 2005 - 04:36:24 CDT

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TITLE:
Sun Solaris Runtime Linker Privilege Escalation Vulnerability

SECUNIA ADVISORY ID:
SA15841

VERIFY ADVISORY:
http://secunia.com/advisories/15841/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

OPERATING SYSTEM:
Sun Solaris 10
http://secunia.com/product/4813/
Sun Solaris 8
http://secunia.com/product/94/
Sun Solaris 9
http://secunia.com/product/95/

DESCRIPTION:
Przemyslaw Frasunek has reported a vulnerability in Solaris, which
can be exploited by malicious, local users to gain escalated
privileges.

The vulnerability is caused due to a design error in the runtime
linker (ld.so.1) when executing setuid and setgid programs. This can
be exploited to execute arbitrary code from a malicious library with
escalated privileges.

The vulnerability affects the following versions:
* Solaris 8 with patches 109147-31 through 109147-36 (SPARC)
* Solaris 8 with patches 109148-31 through 109148-36 (x86)
* Solaris 9 with patches 112963-16 through 112963-19 (SPARC)
* Solaris 9 with patches 113986-12 through 113986-15 (x86)
* Solaris 10

SOLUTION:
Grant only trusted users access to vulnerable systems.

The vendor recommends either backing out the relevant linker patch to
an unaffected version or replacing the ld.so.1 file with one from an
earlier patch (see vendor advisory for details).

A final resolution is reportedly pending completion.

PROVIDED AND/OR DISCOVERED BY:
Przemyslaw Frasunek

ORIGINAL ADVISORY:
Sun Microsystems:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101794-1

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About:
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