Secunia Security Advisory - David Kierznowski has discovered a vulnerability in Persits Software XUpload, which can be exploited by malicious people to compromise a user's system.
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TITLE:
Persits Software XUpload "AddFile()" Method Buffer Overflow
SECUNIA ADVISORY ID:
SA28660
VERIFY ADVISORY:
http://secunia.com/advisories/28660/
CRITICAL:
Highly critical
IMPACT:
System access
WHERE:
>From remote
SOFTWARE:
Persits Software XUpload 2.x
http://secunia.com/product/17042/
Persits Software XUpload 3.x
http://secunia.com/product/17043/
DESCRIPTION:
David Kierznowski has discovered a vulnerability in Persits Software
XUpload, which can be exploited by malicious people to compromise a
user's system.
The vulnerability is caused due to a boundary error in the
Persits.XUpload.2 ActiveX control (XUpload.ocx) when processing
arguments passed to the "AddFile()" method. This can be exploited to
cause a stack-based buffer overflow by passing an overly-long string
as argument to the affected method.
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in version 3.0.0.4 and 2.1.0.1. Other
versions may also be affected.
SOLUTION:
Set the kill-bit for the affected ActiveX control.
PROVIDED AND/OR DISCOVERED BY:
David Kierznowski
ORIGINAL ADVISORY:
http://milw0rm.com/exploits/4987
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