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TITLE:
SCO OpenServer Chroot Escape Vulnerability

SECUNIA ADVISORY ID:
SA15339

VERIFY ADVISORY:
http://secunia.com/advisories/15339/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
Local system

OPERATING SYSTEM:
SCO OpenServer 5.x
http://secunia.com/product/137/

DESCRIPTION:
Simon Roses Femerling has reported a vulnerability in SCO OpenServer,
which can be exploited by malicious, local users to break out of the
chroot jail.

The vulnerability is caused due to some errors in the implementation
of the "chroot()" security feature. This can be exploited to break
out of the chroot restriction and access arbitrary files on the file
system.

NOTE: Exploit code is publicly available.

SOLUTION:
Apply patch.

OpenServer 5.0.6 / 5.0.7:
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.22/VOL.000.000

PROVIDED AND/OR DISCOVERED BY:
Simon Roses

ORIGINAL ADVISORY:
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.22/SCOSA-2005.22.txt

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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