PGPfire uses unique ICMP response fingerprints

pgpfire-icmp-fingerprint (8008) The risk level is classified as LowLow Risk


PGPfire could allow a remote attacker to determine the Windows operating system version when receiving ICMP Port Unreachable Error responses. An attacker can use this information when planning further attacks against a victim's computer. By default, PGPfire is installed with PGP Corporate Desktop version 7.1.


Obtain Information


No remedy available as of September 1, 2014.


  • BugTraq Mailing List, Fri Jan 25 2002 - 13:47:36 CST: Identifying PGP Corporate Desktop 7.1 with PGPfire Personal Desktop Firewall Installed (no need to be enabled) on Microsoft Windows Based OSs.
  • BID-3961: PGPFire Desktop Firewall ICMP Fingerprinting Vulnerability
  • CVE-2002-0208: PGP Security PGPfire 7.1 for Windows alters the system's TCP/IP stack and modifies packets in ICMP error messages in a way that allows remote attackers to determine that the system is running PGPfire.
  • OSVDB ID: 11969: NAI PGP Security PGPfire ICMP Error Message Software Presence Disclosure

Platforms Affected:

  • PGP Corporate Desktop 7.1


Jan 25, 2002

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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