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CERT Coordination Center

Cayman gateways are vulnerable to a denial of sevices via a long username or password

Vulnerability Note VU#36312

Original Release Date: 2001-08-27 | Last Revised: 2001-08-27


Cayman gateways are vulnerable to a denial of service via the entry of a long username or password sent to the HTTP interface.


Cayman gateways automatically restart upon the entry of a large(79+ chars) username or password to the HTTP interface. The log will show "restart not in response to admin command". Versions prior to 5.5.0 R1 were vulnerable and if the gateway is not addressable via the WAN, it is exploitable only via the LAN side.


The gateway automatically restarts resulting in a denial of service. This may be the result of a buffer overflow over instructions on the stack.


The fix for the long name entry in the username/password that was originally resolved in 5.5.0 R1 is included in 5.6.2 R5. Upgrade to the latest vendor software release.

Vendor Information


Cayman Affected

Notified:  July 27, 2001 Updated: August 21, 2001



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

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This vulnerability was discovered by Cassius.

This document was written by Jason Rafail.

Other Information

CVE IDs: CVE-2000-0417
Severity Metric: 3.59
Date Public: 2000-05-05
Date First Published: 2001-08-27
Date Last Updated: 2001-08-27 15:08 UTC
Document Revision: 8

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