Multiple OpenVMS WASD HTTP Server Vulnerabilities



Date Discovered

September 26, 2002


Multiple vulnerabilities have been reported in WASD HTTP Server for OpenVMS. The consequences of successful exploitation of these issues may range from information disclosure to varying degrees of remote compromise.

Technologies Affected

  • WASD WASD HTTP Server 7.1.0
  • WASD WASD HTTP Server 7.2.0
  • WASD WASD HTTP Server 7.2.1
  • WASD WASD HTTP Server 7.2.2
  • WASD WASD HTTP Server 7.2.3
  • WASD WASD HTTP Server 8.0.0


Block external access at the network boundary, unless external parties require service.
Filter untrusted network traffic at routers and firewalls. Deploy network intrusion detection systems to monitor for malicious access attempts. Audit logs regularly.

Disable any unneccessary default services.
Examine the installation for any unneeded components. Remove the unneeded components from production environments.

Implement multiple redundant layers of security.
Employ operating system access control lists to restrict access to sensitive resources.

The vendor has released fixed versions which address these issues. Administrators are advised to upgrade. Those using versions prior to 7.2 are advised to upgrade to at least 7.2 and then apply the relevant fixes.



Discovery of these issues is credited to Jean-loup Gailly <>.

© 1995- Symantec Corporation

Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from


The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.

Symantec, Symantec products, Symantec Security Response, and are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.