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CWE-433: Unparsed Raw Web Content Delivery

AbstractionStructureStatus
NoneSimpleIncomplete

Description

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

Extended Description

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.

NatureIDView IDName
ChildOfCWE-2191000Storage of File with Sensitive Data Under Web Root

Modes of Introduction

PhaseNote
Implementation-
Operation-

Applicable Platforms

Languages

Class: Not Language-Specific

Technologies

Common Consequences

ScopeImpactNote
ConfidentialityRead Application Data

Potential Mitigations

Architecture and Design

Perform a type check before interpreting files.

Architecture and Design

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

Observed Examples

  • 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.