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Directory Traversal Vulnerability in AnyConnect
Vulnerability ID: HTB22629
Vendor: AnyConnect ( http://www.anyconnect.net )
Vulnerable Version: 126.96.36.199 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/)
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.