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Arrow  Topic :

XM Easy Personal FTP Server Remote Buffer Overflow Vulnerability


Arrow  SecurityAlert : 851
Arrow  CVE : CVE-2006-2225
Arrow  SecurityRisk : High  Security Risk High  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Available : No
Arrow  Credit : rewterz (advisories rewterz com)
Arrow  Published : 09.05.2006

Arrow  Affected Software : XM Easy Personal FTP Server v4.3



Arrow  Advisory Content :  

REWTERZ-20060503 - XM Easy Personal FTP Server Remote Buffer Overflow
Vulnerability

Release Date:
May 3, 2006

Severity:
High (Remote Code Execution)

Vendor:
Dxmsoft

Software Affected:
XM Easy Personal FTP Server v4.3 and before

Operating Systems Affected:
Windows NT 4.0
Windows 98 / ME
Windows 2000
Windows XP
Windows 2003

Overview:
rewterz has discovered a critical vulnerability in XM Easy Personal FTP
Server. This vulnerability may allow a remote attacker to overwrite memory
with user controlled data and execute arbitrary code in the context of the
user who executed the XM Easy Personal FTP Server.

Technical Details:
This vulnerability exists in the handling of username input provided by the
user while making connection to FTP server. We chose not to provide
detailed information about the vulnerability and how to reproduce it
because the author hasn't confirmed this vulnerability. We can pass a long
argument with some commands into a buffer. There is no checking of the
length of this input. Depending on the input, this will cause exploitable
condition.

We have confirmed the ability to execute our own code. This is a common
buffer overflow vulnerability and can be exploited easily.

Credit:
Discovery: Muhammad Ahmed Siddiqui

Greetings:
c0ntex

Copyright (c) 2003-2006 rewterz
Permission is hereby granted for the redistribution of this alert
electronically. It is not to be edited in any way without express consent
of rewterz.

Disclaimer
The information within this paper may change without notice. Use of this
information constitutes acceptance for use in an AS IS condition. There are
no warranties, implied or express, with regard to this information. In no
event shall the author be liable for any direct or indirect damages
whatsoever arising out of or in connection with the use or spread of this
information. Any use of this information is at the user's own risk.





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