Overview
The Lotus Domino Web Server contains a flaw that could be exploited to cause a denial of service.
Description
HTTP requests to TCP port 80 consisting of multiple /'s, approximately 8k worth, will result in the consumption of the CPU (99-100%). Typically, 8k of the character "a" results in only 1% of CPU consumption. |
Impact
CPU usage is pushed to maximum consumption, with a possible denial of service resulting. |
Solution
Upgrade to Notes/Domino 5.0.7 or later. See http://www.notes.net/qmrdown.nsf/QMRWelcome. |
Install an application layer filter to detect and block malicious requests. |
Vendor Information
CVSS Metrics
| Group | Score | Vector |
|---|---|---|
| Base | ||
| Temporal | ||
| Environmental |
References
Acknowledgements
Our thanks to Defcom Labs, which published an advisory on this and other problems, available at http://www.securityfocus.com/frames/?content=/templates/advisory.html?id=3208.
This document was written by Jason Rafail and is based on information obtained from a Defcom Labs Advisory.
Other Information
| CVE IDs: | None |
| Severity Metric: | 10.50 |
| Date Public: | 2001-04-11 |
| Date First Published: | 2001-07-12 |
| Date Last Updated: | 2001-07-17 19:17 UTC |
| Document Revision: | 22 |