TITLE:
OpenSSL "der_chop" Script Insecure Temporary File Creation

SECUNIA ADVISORY ID:
SA12973

VERIFY ADVISORY:
http://secunia.com/advisories/12973/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
OpenSSL 0.9.x
http://secunia.com/product/253/

DESCRIPTION:
A vulnerability has been reported in OpenSSL, which can be exploited
by malicious, local users to perform certain actions on a vulnerable
system with escalated privileges.

The vulnerability is caused due to the "der_chop" script creating
temporary files insecurely. This can be exploited via symlink attacks
to create or overwrite arbitrary files with the privileges of the user
executing the vulnerable script.

The vulnerability has been reported in versions 0.9.6m, 0.9.7d, and
0.9.7e. Other versions may also be affected.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
First reported in a Trustix advisory.

ORIGINAL ADVISORY:
http://www.trustix.org/errata/2004/0050/

----------------------------------------------------------------------

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

Subscribe:
http://secunia.com/secunia_security_advisories/

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.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet@packetstormsecurity.org

----------------------------------------------------------------------