CERT warns firewall leaves open door to attackers

    Date10 Jul 2001
    CategoryFirewalls
    4825
    Posted ByAnthony Pell
    A United States-based network security watchdog has warned of a security hole in firewall software that will give an attacker access to the system and could lead to a denial of service attack. An advisory from CERT overnight . . . A United States-based network security watchdog has warned of a security hole in firewall software that will give an attacker access to the system and could lead to a denial of service attack. An advisory from CERT overnight said Check Point VPN1 and FireWall1 Version 4.1 software contained a vulnerability that may allow an intruder to pass traffic through the firewall on port 259/UDP.

    The advisory said FireWall1 and VPN1 do not provide adequate security controls for RDP (reliable data protocol), a protocol designed to provide a reliable data transport service for packetbased applications such as remote loading and debugging, and supported by the firewall software.

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