1. /
  2. Security Response/
  3. Multiple Cisco VPN 3000 Vulnerabilities

Multiple Cisco VPN 3000 Vulnerabilities

Risk

High

Date Discovered

September 3, 2002

Description

Cisco has reported a number of vulnerabilities in the VPN 3000 series concentrators. These issues affect models 3005, 3015, 3030, 3060, 3080 and the Cisco VPN 3002 Hardware Client. The nature of these issues varies from disclosure of sensitive information, to denial of service. Some of these issues may allow for remote unauthorized access to the device or the network to occur.

Technologies Affected

  • Cisco VPN 3000 Concentrator 2.5.2 (A)
  • Cisco VPN 3000 Concentrator 2.5.2 (B)
  • Cisco VPN 3000 Concentrator 2.5.2 (C)
  • Cisco VPN 3000 Concentrator 2.5.2 (D)
  • Cisco VPN 3000 Concentrator 2.5.2 (F)
  • Cisco VPN 3000 Concentrator 3.0.3 (A)
  • Cisco VPN 3000 Concentrator 3.1.1
  • Cisco VPN 3000 Concentrator 3.5.0 (Rel)
  • Cisco VPN 3000 Concentrator 3.5.3
  • Cisco VPN 3000 Concentrator 3.5.4
  • Cisco VPN 3000 Concentrator 3.6.0
  • Cisco VPN 3002 Hardware Client

Recommendations

Block external access at the network boundary, unless external parties require service.

Filter untrusted network traffic at border routers and network firewalls.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.

Use network intrusion detection systems to identify attempted attacks and their origins.
Cisco has made patches available on the basis of specific issue. Please see the referenced advisory for information regarding fixes for your specific platform.

References

Credits

Vulnerability announced in a Cisco Security Advisory.
Copyright © 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 secure@symantec.com.

Disclaimer
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 secure@symantec.com 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.

Threat Intelligence

Subscribe
Follow the Threat Intelligence Twitter feed
STAR Antimalware Protection Technologies
Internet Security Threat Report
Symantec DeepSight Screensaver