CVE-2017-5647 : Vulnerability Insights and Analysis
Learn about CVE-2017-5647 affecting Apache Tomcat versions 9.0.0.M1 to 9.0.0.M18, 8.5.0 to 8.5.12, 8.0.0.RC1 to 8.0.42, 7.0.0 to 7.0.76, and 6.0.0 to 6.0.52. Understand the impact, technical details, and mitigation steps.
An issue has been identified in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M18, 8.5.0 to 8.5.12, 8.0.0.RC1 to 8.0.42, 7.0.0 to 7.0.76, and 6.0.0 to 6.0.52, affecting the handling of pipelined requests.
Understanding CVE-2017-5647
This CVE involves a bug in Apache Tomcat that could lead to responses being associated with the wrong request.
What is CVE-2017-5647?
When using the 'send file' function in Apache Tomcat, a bug occurs in handling pipelined requests, causing responses to be mismatched with the corresponding requests.
The Impact of CVE-2017-5647
The mishandling of pipelined requests can result in responses being attributed to incorrect requests, potentially leading to data leakage or manipulation.
Technical Details of CVE-2017-5647
Apache Tomcat versions 9.0.0.M1 to 9.0.0.M18, 8.5.0 to 8.5.12, 8.0.0.RC1 to 8.0.42, 7.0.0 to 7.0.76, and 6.0.0 to 6.0.52 are affected by this vulnerability.
Vulnerability Description
The bug in handling pipelined requests causes responses to be associated with the wrong request, potentially leading to data exposure.
Affected Systems and Versions
- Apache Tomcat 9.0.0.M1 to 9.0.0.M18
- Apache Tomcat 8.5.0 to 8.5.12
- Apache Tomcat 8.0.0.RC1 to 8.0.42
- Apache Tomcat 7.0.0 to 7.0.76
- Apache Tomcat 6.0.0 to 6.0.52
Exploitation Mechanism
The bug occurs when utilizing the 'send file' function in Apache Tomcat, leading to the misalignment of responses with the corresponding requests.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of CVE-2017-5647.
Immediate Steps to Take
- Update Apache Tomcat to a patched version that addresses the handling of pipelined requests.
- Monitor network traffic for any signs of mismatched responses.
Long-Term Security Practices
- Regularly update and patch Apache Tomcat to mitigate known vulnerabilities.
- Implement network monitoring and intrusion detection systems to detect anomalous behavior.
Patching and Updates
Ensure that Apache Tomcat is regularly updated with the latest security patches to prevent exploitation of this vulnerability.