CWE-827
Improper Control of Document Type Definition
Incomplete
2010-12-13
00h00 +00:00
00h00 +00:00
2023-06-29
00h00 +00:00
00h00 +00:00
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Name: Improper Control of Document Type Definition
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.
CWE Description
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.
General Informations
Modes Of Introduction
Implementation : REALIZATION: This weakness is caused during implementation of an architectural security tactic.Applicable Platforms
Language
Name: XML (Undetermined)Common Consequences
| Scope | Impact | Likelihood |
|---|---|---|
| Confidentiality | Read Files or Directories Note: If the attacker is able to include a crafted DTD and a default entity resolver is enabled, the attacker may be able to access arbitrary files on the system. | |
| Availability | DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory) Note: The DTD may cause the parser to consume excessive CPU cycles or memory using techniques such as nested or recursive entity references (CWE-776). | |
| Integrity Confidentiality Availability Access Control | Execute Unauthorized Code or Commands, Gain Privileges or Assume Identity Note: The DTD may include arbitrary HTTP requests that the server may execute. This could lead to other attacks leveraging the server's trust relationship with other entities. |
Observed Examples
| References | Description |
|---|---|
CVE-2010-2076 | Product does not properly reject DTDs in SOAP messages, which allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, or cause a denial of service. |
Vulnerability Mapping Notes
Justification : This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.Comment : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.
References
REF-773
Apache CXF Security Advisory (CVE-2010-2076)Daniel Kulp.
http://svn.apache.org/repos/asf/cxf/trunk/security/CVE-2010-2076.pdf
Submission
| Name | Organization | Date | Date release | Version |
|---|---|---|---|---|
| CWE Content Team | MITRE | 1.11 |
Modifications
| Name | Organization | Date | Comment |
|---|---|---|---|
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Common_Consequences | |
| CWE Content Team | MITRE | updated Applicable_Platforms | |
| CWE Content Team | MITRE | updated Modes_of_Introduction, Relationships | |
| CWE Content Team | MITRE | updated Type | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Relationships | |
| CWE Content Team | MITRE | updated Description | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes |
