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
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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.

About the Author

Ken Pfeil

Ken Pfeil

See more from Ken Pfeil
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