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

Overview

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

Description

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.

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Impact

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

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Solution

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.

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Vendor Information

36312

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Cayman Affected

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

Status

Affected

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.

Addendum

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](<mailto:[email protected]?Subject=VU%2336312 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.securityfocus.com/bid/1219&gt;
• <http://www.securityfocus.com/archive/1/58800&gt;

Acknowledgements

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: