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Denial of Service in WatchGuard Firebox VPN Appliance
A Denial of Service (DoS) condition exists in WatchGuard Firebox with firmware 5.x.x.
Ken Pfeil
July 9, 2002
1 Min Read
Reported July 9, 2002, by PeterGründl.
VERSION AFFECTED
WatchGuard Firebox appliance with firmware 5.x.x
DESCRIPTION
ADenial of Service (DoS) condition exists in WatchGuard Firebox with firmware5.x.x. By sending a malformed packet to the listener service onTCP port 4110, an attacker can cause the Dynamic VPN Configuration Protocol (DVCP)service to fail.
VENDOR RESPONSE
Thevendor, WatchGuard, recommends thataffected users upgrade their firmware to version 6.x.x, available through thecompany's LiveSecurityService.
CREDIT
Discovered by AndreasSandor and Peter Gründl.
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