Title

Web Distributed Authoring and Versioning (WebDAV) must be disabled. (Cat II impact)

Discussion

The Apache mod_dav and mod_dav_fs modules support WebDAV ('Web-based Distributed Authoring and Versioning') functionality for Apache. WebDAV is an extension to the HTTP protocol which allows clients to create, move, and delete files and resources on the web server. WebDAV is not widely used, and has serious security concerns as it may allow clients to modify unauthorized files on the web server. Therefore, the WebDav modules mod_dav and mod_dav_fs should be disabled.

Check Content

Open the httpd.conf file. Search for uncommented LoadModule dav_module, LoadModule dav_fs_module, and LoadModule dav_lock_module directive statements. If any of these statements are found uncommented, this is a finding.

Fix Text

Edit the httpd.conf file and remove, or comment out, the following modules statements: dav_module, dav_fs_module, and dav_lock_module. Restart the server.

Additional Identifiers

Rule ID: SV-36611r1_rule

Vulnerability ID: V-26287

Group Title: WA00505

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.