Alteon ACEdirector reveals real IP address with HTTP connection half-closed

acedirector-http-reveal-ip (8010) The risk level is classified as LowLow Risk


Alteon ACEdirector running Alteon WebOS could allow a remote attacker to obtain the real IP address of Web servers managed by the ACEdirector device. If there is a half-closed HTTP connection to the ACEdirector device, all traffic would come from the real IP address of the Web server instead of the virtual IP address of the ACEdirector device.


Obtain Information


No remedy available as of September 1, 2014.


  • BugTraq Mailing List, Fri Jan 25 2002 - 16:09:40 CST: Alteon ACEdirector signature/security bug.
  • BID-3964: Alteon AceDirector Half-Closed HTTP Request IP Address Revealing Vulnerabililty
  • CVE-2002-0209: Nortel Alteon ACEdirector WebOS 9.0, with the Server Load Balancing (SLB) and Cookie-Based Persistence features enabled, allows remote attackers to determine the real IP address of a web server with a half-closed session, which causes ACEdirector to send packets from the server without changing the address to the virtual IP address.
  • OSVDB ID: 2035: Alteon AceDirector Half-Closed HTTP Request IP Address Revealing

Platforms Affected:

  • Nortel Alteon ACEdirector 9.0


Jan 25, 2002

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