CVE-2017-15706 Explained : Impact and Mitigation

CVE-2017-15706, published on January 31, 2018, pertains to Apache Tomcat versions 9.0.0.M22 to 9.0.1, 8.5.16 to 8.5.23, 8.0.45 to 8.0.47, and 7.0.79 to 7.0.82.

Understanding CVE-2017-15706

This CVE addresses an issue related to the CGI Servlet documentation in Apache Tomcat.

What is CVE-2017-15706?

This CVE rectifies an error in the documentation of the CGI Servlet search algorithm in Apache Tomcat versions, potentially leading to script execution issues.

The Impact of CVE-2017-15706

The incorrect documentation could cause certain scripts to fail to execute as intended or be executed unexpectedly, affecting the reliability of the CGI Servlet functionality.

Technical Details of CVE-2017-15706

This section delves into the specifics of the vulnerability.

Vulnerability Description

The documentation update for the CGI Servlet search algorithm in Apache Tomcat was inaccurate, potentially causing script execution discrepancies.

Affected Systems and Versions

Apache Tomcat versions 9.0.0.M22 to 9.0.1
Apache Tomcat versions 8.5.16 to 8.5.23
Apache Tomcat versions 8.0.45 to 8.0.47
Apache Tomcat versions 7.0.79 to 7.0.82

Exploitation Mechanism

The vulnerability stems from the incorrect description of the CGI Servlet search algorithm, leading to script execution issues.

Mitigation and Prevention

Protecting systems from CVE-2017-15706 involves taking immediate and long-term security measures.

Immediate Steps to Take

Update Apache Tomcat to a patched version that addresses the documentation error.
Monitor script execution for any unexpected behavior.

Long-Term Security Practices

Regularly review and update documentation to ensure accuracy.
Conduct thorough testing after any documentation changes to verify expected behavior.

Patching and Updates

Ensure timely application of patches and updates provided by Apache Software Foundation to mitigate the vulnerability.