Intrusion PreventionApache.Tomcat.NIO.Connector.DoS
Description
This indicates an attack attempt to exploit a Denial of Service Vulnerability in Apache Tomcat.
The vulnerability is due to an infinite loop in the NIO Connector. The infinite loop was caused by a client breaks the connection in the middle of reading the response for a request of a big file. As a result, a remote attacker may be able to exploit this to cause a denial-of-service condition on the affected system.
Affected Products
- Apache Software Foundation Tomcat 7.x prior to 7.0.28
- Apache Software Foundation Tomcat 6.x prior to 6.0.36
Impact
Denial of Service:
Remote attackers can crash vulnerable systems.
Recommended Actions
Apply below patch provided by the vendor from the following website:
http://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.36
http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.28
Telemetry
Coverage
| IPS (Regular DB) | |
| IPS (Extended DB) |
Version Updates
| Date | Version | Detail |
|---|---|---|
| 2019-01-11 | 14.522 | Sig Added |
| ID | 34370 |
| Created | Dec 28, 2017 |
| Updated | Nov 15, 2021 |
| Risk |
|
| CVE ID | CVE-2012-4534 |
| Exploit Prediction Score | 70.48% |
| Default Action | drop |
| Active | |
| Affected OS | Windows, Linux |
| Affected App | Apache |