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TITLE:
Linux Kiss Server "log_message()" Format String Vulnerability

SECUNIA ADVISORY ID:
SA29219

VERIFY ADVISORY:
http://secunia.com/advisories/29219/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From local network

SOFTWARE:
Linux Kiss Server 1.x
http://secunia.com/product/17867/

DESCRIPTION:
vashnukad has discovered a vulnerability in Linux Kiss Server, which
potentially can be exploited by malicious people to compromise a
vulnerable system.

The vulnerability is caused due to a format string error within the
"log_message()" function in lks.c. This can be exploited by e.g.
sending a command containing format string specifiers to the affected
server.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in version 1.2. Other versions may
also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
vashnukad

ORIGINAL ADVISORY:
http://lists.grok.org.uk/pipermail/full-disclosure/2008-March/060550.html

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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.

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.

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