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CMailServer POP3 Class ActiveX Control Buffer Overflow
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Secunia Advisory:
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SA30940
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Release Date:
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2008-07-07
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Popularity:
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1,564 views
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | CMailServer 5.x
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Binary Analysis:
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BA512 :: Available for 1 Credit 
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Description:
Nine:Situations:Group::bruiser has discovered a vulnerability in CMailServer, which can be exploited by malicious users to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the POP3 Class ActiveX control (CMailCOM.dll) when handling arguments passed to the "MoveToFolder()" method. This can be exploited to cause a stack-based buffer overflow by sending a specially crafted POST request to mvmail.asp with an overly long "indexOfMail" parameter.
Successful exploitation allows execution of arbitrary code.
NOTE: Other methods have also been mentioned as vulnerable and may be exploitable similarly.
The vulnerability is confirmed in version 5.4.6. Other versions may also be affected.
Solution:
Grant only trusted users access to the application.
Provided and/or discovered by:
Nine:Situations:Group::bruiser
Original Advisory:
http://milw0rm.com/exploits/6012
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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