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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
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Definitions: (Criticality, Where etc.)
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