F5 FirePass 5.4 through 5.5.2 and 6.0 allows remote attackers to access restricted URLs via (1) a trailing null byte, (2) multiple leading slashes, (3) Unicode encoding, (4) URL-encoded directory traversal or same-directory characters, or (5) upper case letters in the domain name.

F5 FirePass 5.4 through 5.5.1 does not properly enforce host access restrictions when a client uses a single integer (dword) representation of an IP address ("dotless IP address"), which allows remote authenticated users to connect to the FirePass administrator console and certain other network resources.

my.activation.php3 in F5 FirePass 5.4 through 5.5.1 and 6.0 displays different error messages for failed login attempts with a valid username than for those with an invalid username, which allows remote attackers to confirm the validity of an LDAP account.