Apache Tomcat null character to threads denial of service
| tomcat-null-thread-dos (9396) |  Medium Risk |
Description:
Apache Tomcat is vulnerable to a denial of service attack. A remote attacker can send specially-crafted URL requests containing a large amount of null characters to the server to cause the consumption of all threads on the server.
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Apache Tomcat (4.1.3 beta or later), available from the Jakarta Project Web site. See References.
References:
- BugTraq Mailing List, Thu Jun 20 2002 - 04:08:08 CDT: KPMG-2002025: Apache Tomcat Denial of Service.
- The Jakarta Project Web site: Binary Downloads.
- BID-5067: Apache Tomcat Null Character Malformed Request Denial Of Service Vulnerability
- CVE-2002-0935: Apache Tomcat 4.0.3, and possibly other versions before 4.1.3 beta, allows remote attackers to cause a denial of service (resource exhaustion) via a large number of requests to the server with null characters, which causes the working threads to hang.
- OSVDB ID: 5051: Apache Tomcat Null Character DoS
Platforms Affected:
- Apache Tomcat 4.0.3
- Microsoft Windows 2003 Server
Reported:
Jun 20, 2002
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