CVE-2017-5664 : Exploit Details and Defense Strategies
Learn about CVE-2017-5664 affecting Apache Tomcat versions 9.0.0.M1 to 9.0.0.M20, 8.5.0 to 8.5.14, 8.0.0.RC1 to 8.0.43, and 7.0.0 to 7.0.77. Discover the impact, technical details, and mitigation steps for this security constraint bypass vulnerability.
Apache Tomcat versions 9.0.0.M1 to 9.0.0.M20, 8.5.0 to 8.5.14, 8.0.0.RC1 to 8.0.43, and 7.0.0 to 7.0.77 are affected by a security constraint bypass vulnerability.
Understanding CVE-2017-5664
This CVE involves the mishandling of error pages in the Java Servlet Specification within Apache Tomcat.
What is CVE-2017-5664?
The error page mechanism in Java Servlet Specification forwards original requests and responses to error pages. However, in affected versions of Apache Tomcat, this behavior was not correctly implemented, leading to unexpected outcomes for static error pages.
The Impact of CVE-2017-5664
The vulnerability could result in security constraint bypass, allowing for unexpected and undesired results for static error pages, potentially compromising the integrity of custom error pages.
Technical Details of CVE-2017-5664
Apache Tomcat versions 9.0.0.M1 to 9.0.0.M20, 8.5.0 to 8.5.14, 8.0.0.RC1 to 8.0.43, and 7.0.0 to 7.0.77 are affected by this vulnerability.
Vulnerability Description
The Default Servlet in Apache Tomcat did not correctly handle error pages, potentially leading to security constraint bypass.
Affected Systems and Versions
- Apache Tomcat 9.0.0.M1 to 9.0.0.M20
- Apache Tomcat 8.5.0 to 8.5.14
- Apache Tomcat 8.0.0.RC1 to 8.0.43
- Apache Tomcat 7.0.0 to 7.0.77
Exploitation Mechanism
The vulnerability allows attackers to bypass security constraints by manipulating error pages in Apache Tomcat.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.
Immediate Steps to Take
- Update Apache Tomcat to a non-vulnerable version.
- Implement proper error page handling in custom Servlets and JSPs.
Long-Term Security Practices
- Regularly monitor and apply security patches for Apache Tomcat.
- Conduct security audits to identify and mitigate similar vulnerabilities.
Patching and Updates
Ensure that Apache Tomcat is regularly updated to the latest secure version to prevent exploitation of CVE-2017-5664.