The ClientTrust program in Novell BorderManager does not properly verify the origin of authentication requests, which could allow remote attackers to impersonate another user by replaying the authentication requests and responses from port 3024 of the victim's machine.
Novell BorderManager 3.0 and 3.5 allows remote attackers to bypass URL filtering by encoding characters in the requested URL.
Remote attackers can cause a denial of service in Novell BorderManager 3.5 by pressing the enter key in a telnet connection to port 2000.