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List:       bugtraq
Subject:    Directory Traversal Vulnerability in AnyConnect
From:       advisory () htbridge ! ch
Date:       2010-10-13 14:55:15
Message-ID: 201010131455.o9DEtF7u070612 () htbridge ! ch
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Vulnerability ID: HTB22629
Reference: http://www.htbridge.ch/advisory/directory_traversal_vulnerability_in_anyconnect.html
                
Product: AnyConnect
Vendor: AnyConnect ( http://www.anyconnect.net ) 
Vulnerable Version: 1.2.3.0 and Probably Prior Versions
Vendor Notification: 27 September 2010 
Vulnerability Type: Directory Traversal Vulnerability
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: High 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing \
(http://www.htbridge.ch/) 

Vulnerability Details:
When exploited, this vulnerability allows an anonymous attacker to write files to \
specified locations on a user's system.

The FTP client does not properly sanitise filenames containing directory traversal \
sequences that are received from an FTP server, for example file named as \
"..\..\..\..\..\..\..\somefile.exe".

By tricking a user to download a directory from a malicious FTP server that contains \
files with backslash directory traversal sequences in their filenames,  an attacker \
can potentially write files into a user's Startup folder to execute malicious code \
when the user logs on.


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