TCP/IP SYN+FIN Packet Filtering Weakness
Medium Nessus Plugin ID 11618
SynopsisIt may be possible to bypass firewall rules.
DescriptionThe remote host does not discard TCP SYN packets that have the FIN flag set.
Depending on the kind of firewall you are using, an attacker may use this flaw to bypass its rules.
SolutionContact your vendor for a patch.