Rule ID
SV-241644r879587_rule
Version
V1R2
CCIs
CCI-000381
A web server can be installed with functionality that, just by its nature, is not secure. Web Distributed Authoring (WebDAV) is an extension to the HTTP protocol that, when developed, was meant to allow users to create, change, and move documents on a server, typically a web server or web share. Allowing this functionality, development, and deployment is much easier for web authors. WebDAV is not widely used and has serious security concerns because it may allow clients to modify unauthorized files on the web server. As an extension to Tomcat, tc Server uses the “org.apache.catalina.servlets.WebdavServlet” servlet to provide WebDAV services. Because the WebDAV service has been found to have an excessive number of vulnerabilities, this servlet must not be installed.
At the command prompt, execute the following command: find / -name 'web.xml' -print0 | xargs -0r grep -HEn 'webdav' If the command produces any output, this is a finding.
Navigate to and open all listed web.xml files. Navigate to and locate the mapping for the JSP servlet. It is the <servlet-mapping> node that contains <servlet-name>webdav</servlet-name>. Remove the WebDav servlet and any mapping associated with it.