![]() ![]() We also recommend to enable the following two QIDs in Qualys Web Application Scanning: We take into consideration that AJP is a binary version of HTTP and could not be requested over HTTP, hence the detection of the vulnerable server is determined based on the presence of Tomcat version and the fact that it is shipped with default configurations. To keep it simple, our scan will not attempt to actively determine the vulnerability by uploading an arbitrary file. The WAS scan will report QID 150282 as a potential vulnerability. Identifying CVE-2020-1938 Vulnerability using WAS scanĮnable QID 150282 in your Qualys WAS option profiles to identify if you are running a vulnerable version of Apache Tomcat. Tomcat has fix this vulnerability ,UPDATE! /Jauc5zPF3a You can read any webapps files or include a file to RCE. #APACHE TOMCAT DEFAULT FILES VULNERABILITY CODE#If arbitrary file upload is not disabled, it is then possible for the attacker to upload malicious code to the web server that enables remote code execution. With this vulnerability, an attacker can easily gain access to configuration files if the protocol is publicly available. The Apache Tomcat AJP File Inclusion vulnerability (CVE-2020-1938) is exploitable only if port 8009 is exposed and AJP is installed.Īffected Apache Tomcat versions will get reported under the Qualys WAS detection (see details of the detection below). As you would learn through reading server.xml, connector port 8009 is not commented and is explicitly enabled by default. Look for the server.xml configuration file that specifies all the default protocols and the document root directory configuration. The most common way to identify whether the protocol is indeed enabled is to first locate the web server’s conf/ directory. It is primarily used as a reverse proxy to communicate with application servers. Anytime the web server is started, AJP protocol is started on port 8009. This protocol is binary and is enabled by default. Apache JServ Protocol (AJP) is used for communication between Tomcat and Apache web server. This new Qualys WAS detection complements the detection that uses Qualys VMDR®.Īpache Tomcat web servers are widely used for deploying Java-based web applications. This blog post details how web application security teams can detect this vulnerability using Qualys Web Application Scanning (WAS). The Chinese cyber security company Chaitin Tech discovered the vulnerability, named “Ghostcat”, which is tracked using CVE-2020-1938 and rated critical severity with a CVSS v3 score of 9.8. As previously reported, a severe vulnerability exists in Apache Tomcat’s Apache JServ Protocol. ![]()
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