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TITLE:
Netatalk papd "popen()" Command Injection Vulnerability

SECUNIA ADVISORY ID:
SA33227

VERIFY ADVISORY:
http://secunia.com/advisories/33227/

CRITICAL:
Less critical

IMPACT:
System access

WHERE:
>From local network

SOFTWARE:
Netatalk 2.x
http://secunia.com/advisories/product/4147/

DESCRIPTION:
A vulnerability has been reported in Netatalk, which potentially can
be exploited by malicious users to compromise a vulnerable system.

The vulnerability is caused due to the papd daemon improperly
sanitising several received parameters before passing them in a call
to "popen()". This can be exploited to execute arbitrary commands via
a specially crafted printing request.

Successful exploitation requires that a printer is configured to pass
arbitrary values as parameters to a piped command.

The vulnerability is reported in versions prior to 2.0.4-beta2.

SOLUTION:
Fixed in version 2.0.4-beta2.

Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://sourceforge.net/project/shownotes.php?release_id=648189

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