IceWarp Merak Mail Server with IceWarp Web Mail contains a flaw that allows a remote attacker to arbitrary create directories. The issue is due to the 'viewaction.html' page not properly sanitizing user input, specifically traversal style attacks (../) supplied via the 'folder' variable.
Classification
Location:
Remote/Network Access Required
Attack Type:
Information Disclosure
Impact:
Loss of Confidentiality
Exploit:
Exploit Available
Disclosure:
OSVDB Verified
OSVDB:
Web Related
Solution
Upgrade to Merak Mail Server 7.6.0 with IceWarp Web Mail 5.3.0 or higher, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround: Disable the IceWarp Web Mail service.