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Firewall rulesets can be bypassed.
It is possible to bypass the rules of the remote firewall by sending
UDP packets with a source port equal to 53.
An attacker may use this flaw to inject UDP packets to the remote
hosts, in spite of the presence of a firewall.
See also :
Either contact the vendor for an update or review the firewall rules
Risk factor :
High / CVSS Base Score : 7.5
CVSS Temporal Score : 7.5
Public Exploit Available : false
Nessus Plugin ID: 11580 (kerio_PF_udpbypass.nasl)
Bugtraq ID: 743611237
CVE ID: CVE-2003-1491CVE-2004-1473
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