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TITLE:
ArGoSoft FTP Server "DELE" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA14526

VERIFY ADVISORY:
http://secunia.com/advisories/14526/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
ArGoSoft FTP Server 1.4.x
http://secunia.com/product/2260/

DESCRIPTION:
CorryL has discovered a vulnerability in ArGoSoft FTP Server, which
can be exploited by malicious users to compromise a vulnerable
system.

The vulnerability is caused due to a boundary error in the handling
of the "DELE" command. This can be exploited to cause a buffer
overflow by supplying an overly long argument to the "DELE" command
(more than 2000 characters).

Successful exploitation allows execution of arbitrary code, but
requires that a user has permissions to delete files.

The vulnerability has been confirmed in version 1.4.2.8. Other
versions may also be affected.

SOLUTION:
Do not grant "Delete" permissions to untrusted users.

PROVIDED AND/OR DISCOVERED BY:
CorryL

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