Unparsed Raw Web Content Delivery

Opis

The product stores raw content or supporting code under the web document root with an extension that is not specifically handled by the server.

If code is stored in a file with an extension such as ".inc" or ".pl", and the web server does not have a handler for that extension, then the server will likely send the contents of the file directly to the requester without the pre-processing that was expected. When that file contains sensitive information such as database credentials, this may allow the attacker to compromise the application or associated components.

Skutki

• Confidentiality

  Read Application Data

Zapobieganie

• Architecture and Design

  Perform a type check before interpreting files.

• Architecture and Design

  Do not store sensitive information in files which may be misinterpreted.

Przykłady podatności

• CVE-2002-1886 ".inc" file stored under web document root and returned unparsed by the server
• CVE-2002-2065 ".inc" file stored under web document root and returned unparsed by the server
• CVE-2005-2029 ".inc" file stored under web document root and returned unparsed by the server
• CVE-2001-0330 direct request to .pl file leaves it unparsed
• CVE-2002-0614 .inc file
• CVE-2004-2353 unparsed config.conf file
• CVE-2007-3365 Chain: uppercase file extensions causes web server to return script source code instead of executing the script.

Słabość nadrzędna

• CWE-219 Storage of File with Sensitive Data Under Web Root

Kiedy powstaje

• Implementation
• Operation

Dotyczy

Not Language-Specific, Web Based, Web Server

Uwagi

This overlaps direct requests (CWE-425), alternate path (CWE-424), permissions (CWE-275), and sensitive file under web root (CWE-219).

Źródła

1. The Art of Software Security Assessment — Mark Dowd, John McDonald, Justin Schuh, Chapter 3, "File Handlers", Page 74, Addison Wesley, 2006