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TITLE:
Personal FTP Server "RETR" Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA31852

VERIFY ADVISORY:
http://secunia.com/advisories/31852/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Personal FTP Server 6.x
http://secunia.com/advisories/product/19831/

DESCRIPTION:
Shinnok raydenxy has discovered a vulnerability in Personal FTP
Server, which can be exploited by malicious users to cause a DoS
(Denial of Service).

The vulnerability is caused due to an error when handling the RETR
command. This can be exploited to crash the service by sending
multiple RETR commands with an arbitrary argument.

This vulnerability is confirmed in version 6.0f. Other versions may
also be affected.

SOLUTION:
Grant access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Shinnok raydenxy

ORIGINAL ADVISORY:
http://shinnok.evonet.ro/vulns_html/pftp.html

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