Accellion File Transfer Appliance contains a flaw that allows a remote attacker to traverse outside of a restricted path. The issue is due to the web_client_user_guide.html not properly sanitizing user input, specifically directory traversal style attacks (e.g., ../../) supplied via the lang parameter. This directory traversal attack would allow the attacker to request arbitrary files.
Classification
Location:
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Confidentiality
Solution:
Upgrade
Exploit:
Exploit Public
Disclosure:
Vendor Verified,
Vendor Verified,
Coordinated Disclosure
OSVDB:
Web Related
Solution
Upgrade to version 8_0_105 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
