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TITLE:
NX Server X Server Authentication Bypass Security Issue

SECUNIA ADVISORY ID:
SA14417

VERIFY ADVISORY:
http://secunia.com/advisories/14417/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
Local system

SOFTWARE:
NX Server 1.x
http://secunia.com/product/4717/

DESCRIPTION:
Two security issues have been reported in NX Server, which can be
exploited by malicious, local users to bypass certain security
restrictions.

1) An error in the way the authority file is handled can allow access
to the display of another user running a NX session on the system.

2) An error when reading the authority file can be exploited to
interrupt the server by a signal, which can result in the server
enabling local host access.

SOLUTION:
Update to version 1.4.0-107.
http://www.nomachine.com/download.php

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
http://www.nomachine.com/news_read.php?idnews=138

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