FireWall-1 SecuRemote/SecuClient authentication allows remote users to bypass "timeouts"

fw1-authentication-bypass-timeouts (8423) The risk level is classified as LowLow Risk


Check Point FireWall-1 could allow a remote user to bypass firewall restrictions. The "Validation timeout" option in FireWall-1 allows network administrators to set up a restriction, which requires remote users to re-authenticate after a specified time. If a remote user authenticates using SecuRemote or SecuClient, the attacker can then bypass this restriction by modifying the "userc.C" configuration file, which is downloaded during the first time a user authenticates.


Bypass Security


No remedy available as of September 1, 2014.


  • BugTraq Mailing List, Fri Mar 08 2002 - 01:32:02 CST: Checkpoint FW1 SecuRemote/SecureClient "re-authentication" (client side hacks of users.C).
  • BID-4253: Check Point FW-1 SecuClient/SecuRemote Client Design Vulnerability
  • CVE-2002-0428: Check Point FireWall-1 SecuRemote/SecuClient 4.0 and 4.1 allows clients to bypass the authentication timeout by modifying the to_expire or expire values in the client's users.C configuration file.
  • OSVDB ID: 4430: Check Point FireWall-1 Authentication Timeout Bypass

Platforms Affected:

  • CheckPoint FireWall-1 4.0
  • CheckPoint FireWall-1 4.1


Mar 08, 2002

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