CWE-827
Improper Control of Document Type Definition
AI Translation Available
The product does not restrict a reference to a Document Type Definition (DTD) to the intended control sphere. This might allow attackers to reference arbitrary DTDs, possibly causing the product to expose files, consume excessive system resources, or execute arbitrary http requests on behalf of the attacker.
Status
incomplete
Abstraction
variant
Affected Platforms
XML
Extended Description
AI Translation
As DTDs are processed, they might try to read or include files on the machine performing the parsing. If an attacker is able to control the DTD, then the attacker might be able to specify sensitive resources or requests or provide malicious content.
For example, the SOAP specification prohibits SOAP messages from containing DTDs.
Technical Details
AI Translation
Common Consequences
confidentiality
availability
integrity
access control
Impacts
read files or directories
dos: resource consumption (cpu)
dos: resource consumption (memory)
execute unauthorized code or commands
gain privileges or assume identity