CAPEC 描述
An attacker utilizes crafted XML user-controllable input to probe, attack, and inject data into the XML database, using techniques similar to SQL injection. The user-controllable input can allow for unauthorized viewing of data, bypassing authentication or the front-end application for direct XML database access, and possibly altering database information.
CAPEC 信息
执行流程
1) Explore
[Survey the Target] Using a browser or an automated tool, an adversary records all instances of user-controllable input used to contruct XML queries
技术手段
- Use an automated tool to record all instances of user-controllable input used to contruct XML queries.
- Use a browser to manually explore the website and analyze how the application processes inputs.
2) Experiment
[Determine the Structure of Queries] Using manual or automated means, test inputs found for XML weaknesses.
技术手段
- Use XML reserved characters or words, possibly with other input data to attempt to cause unexpected results and identify improper input validation.
3) Exploit
[Inject Content into XML Queries] Craft malicious content containing XML expressions that is not validated by the application and is executed as part of the XML queries.
技术手段
- Use the crafted input to execute unexpected queries that can disclose sensitive database information to the attacker.
前提条件
XML queries used to process user input and retrieve information stored in XML documentsUser-controllable input not properly sanitized
所需技能
An attacker must have knowledge of XML syntax and constructs in order to successfully leverage XML Injection所需资源
None: No specialized resources are required to execute this type of attack.缓解措施
Strong input validation - All user-controllable input must be validated and filtered for illegal characters as well as content that can be interpreted in the context of an XML data or a query.Use of custom error pages - Attackers can glean information about the nature of queries from descriptive error messages. Input validation must be coupled with customized error pages that inform about an error without disclosing information about the database or application.
相关弱点
| 弱点名称 | |
|---|---|
CWE-91 |
XML Injection The product does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system. |
CWE-74 |
Improper Neutralization of Special Elements in Output Used by a Downstream Component The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. |
CWE-20 |
Improper Input Validation The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
CWE-707 |
Improper Neutralization The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being used when received from an upstream component, or before being sent to a downstream component. |
提交记录
| 名称 | 组织 | 日期 | 发布日期 |
|---|---|---|---|
| CAPEC Content Team | The MITRE Corporation |
修改记录
| 名称 | 组织 | 日期 | 备注 |
|---|---|---|---|
| CAPEC Content Team | The MITRE Corporation | Updated Resources_Required | |
| CAPEC Content Team | The MITRE Corporation | Updated References, Related_Weaknesses | |
| CAPEC Content Team | The MITRE Corporation | Updated Mitigations, Taxonomy_Mappings | |
| CAPEC Content Team | The MITRE Corporation | Updated Related_Weaknesses | |
| CAPEC Content Team | The MITRE Corporation | Updated Execution_Flow |
