Because of the Tomcat manager app, the scanner might be flagging it. If the AJP connector is not being used in the application, then the vulnerability can be fixed by directly upgrading Apache Tomcat to version 7.0.100, 8.5.51, or 9.0.31. For Tomcat default files, it is a false positive by your scanner. If the AJP connector service is not in use: If either is true, then the AJP connector is in use.Īn attacker can execute malicious code and also read sensitive information from the configuration files and source code files of all web applications which run on Tomcat.Īpache has released fixes for this vulnerability in Tomcat.
APACHE TOMCAT DEFAULT FILES VULNERABILITY HOW TO
How to check if the AJP connector is used in the server environment?ġ) Check if any cluster or reverse proxy is used.Ģ) Also, check if the cluster or reverse server is communicating with the Tomcat AJP Connector service. The AJP Connector is enabled by default and listens on port 8009. Specifically, Ghostcat vulnerability can be exploited when the AJP Connector is enabled and this allows access to the AJP Connector service port. The default configuration on Apache Tomcat is known to be vulnerable. Disclosure of sensitive data in vulnerable Apache Tomcat serverĪpache Tomcat version 6.x, 7.x before 7.0.100, 8.x before 8.5.51 and 9.x before 9.0.31. Vulnerability Impact: These files should be removed as they may help an attacker to guess the. Vulnerability Insight: Default files, such as documentation, default Servlets and JSPs were found on. The figure below shows the disclosure of data present in the web.xml file on a vulnerable Apache Tomcat Server.įig. Summary: The Apache Tomcat servlet/JSP container has default files installed. This could result in the execution of malicious code.Ī number of researchers have published proofs-of-concept( 1, 2, 3, 4, 5) for CVE-2020-1938. An attacker can upload a malicious file, and then include it using the Ghostcat vulnerability. The impact is known to be much severe in cases where the application allows the uploading of files. This flaw allows attackers to read or include any files in the web application directories of Tomcat. Tomcat AJP protocol connector is a component that communicates with a web connector via the AJP protocol. Tomcat AJP is configured with two connectors: HTTP Connector and AJP Connector. Ghostcat, tracked as CVE-2020-1938, was discovered in Tomcat AJP protocol by researchers at Chaitin Tech. This vulnerability resides in Tomcat for more than a decade now.
APACHE TOMCAT DEFAULT FILES VULNERABILITY SOFTWARE
Apache Tomcat is a software used to deploy Java Servlets and JSPs.
This is only exploitable when running on Windows in a non-default configuration in conjunction with batch files. A critical vulnerability named Ghostcat was recently discovered in Apache Tomcat Servers. Apache Tomcat has a vulnerability in the CGI Servlet, which can be exploited to achieve remote code execution (RCE).
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