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About Remote Code Execution – Apache Tomcat (CVE-2025-24813) vulnerability
About Remote Code Execution – Apache Tomcat (CVE-2025-24813) vulnerability. Apache Tomcat is an open-source software that provides a platform for Java web applications. The vulnerability allows a remote attacker to upload and execute arbitrary files on the server due to flaws in the handling of uploaded session files and the deserialization mechanism. 🔻 The vendor’s […]
About Remote Code Execution – Apache Tomcat (CVE-2025-24813) vulnerability. Apache Tomcat is an open-source software that provides a platform for Java web applications. The vulnerability allows a remote attacker to upload and execute arbitrary files on the server due to flaws in the handling of uploaded session files and the deserialization mechanism.
🔻 The vendor’s bulletin was released on March 10. It notes that the two conditions required for exploitation (“writes enabled for the default servlet” and “file based session persistence with the default storage location”) are not met in default installations.
🔻 Vulnerability write-up based on patch analysis and PoC exploit were published on March 11. Fully functional exploits have been available on GitHub since March 13.
🔻 Since March 17, there have been signs of exploitation in the wild. 👾 On April 1, the vulnerability was added to CISA KEV.
The vulnerability was fixed in versions 9.0.99, 10.1.35, and 11.0.3.
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Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.2, from 10.1.0-M1 through 10.1.34, from 9.0.0.M1 through 9.0.98. If all of the following were true, a malicious user was able to view security sensitive files and/or inject content into those files: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - a target URL for security sensitive uploads that was a sub-directory of a target URL for public uploads - attacker knowledge of the names of security sensitive files being uploaded - the security sensitive files also being uploaded via partial PUT If all of the following were true, a malicious user was able to perform remote code execution: - writes enabled for the default servlet (disabled by default) - support...