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To improve our services to our customers, we have made a number of
additions to the Secunia Advisories and have started translating the
advisories to German.

The improvements will help our customers to get a better
understanding of how we reached our conclusions, how it was rated,
our thoughts on exploitation, attack vectors, and scenarios.

This includes:
* Reason for rating
* Extended description
* Extended solution
* Exploit code or links to exploit code
* Deep links

Read the full description:
http://corporate.secunia.com/products/48/?r=l

Contact Secunia Sales for more information:
http://corporate.secunia.com/how_to_buy/15/?r=l

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TITLE:
Kerio WebSTAR "libucache.dylib" Privilege Escalation

SECUNIA ADVISORY ID:
SA22906

VERIFY ADVISORY:
http://secunia.com/advisories/22906/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Kerio WebSTAR 5.x
http://secunia.com/product/12631/

DESCRIPTION:
Kevin Finisterre has reported a vulnerability in Kerio WebSTAR, which
can be exploited by malicious, local users to gain escalated
privileges.

The vulnerability is caused due to the "WSAdminServer" and
"WSWebServer" applications trying to load the "libucache.dylib"
library from the current directory. This can be exploited to execute
arbitrary code with "root" privileges.

Successful exploitation requires that the attacker is part of the
"admin" group or the "webstar" user.

The vulnerability is reported in version 5.4.2. Other versions may
also be affected.

SOLUTION:
Restrict access to trusted people only.

PROVIDED AND/OR DISCOVERED BY:
Kevin Finisterre

ORIGINAL ADVISORY:
http://www.digitalmunition.com/DMA%5B2006-1115a%5D.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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Secunia NEVER sends attached files with advisories.
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