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CWE-749 詳細

CWE-749

Exposed Dangerous Method or Function
2008-11-24
00h00 +00:00
低
Incomplete
2026-10-28
00h00 +00:00
CWE Mitre.org
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名前: Exposed Dangerous Method or Function

The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted.

一般情報

導入モード

Architecture and Design
Implementation

適用可能なプラットフォーム

言語

クラス： Not Language-Specific (Undetermined)

一般的な結果

スコープ 影響 可能性
Integrity
Confidentiality
Availability
Access Control
Other		Gain Privileges or Assume Identity, Read Application Data, Modify Application Data, Execute Unauthorized Code or Commands, Other

注記：Exposing critical functionality essentially provides an attacker with the privilege level of the exposed functionality. The consequences may vary depending on the behavior of the exposed method. Typically, this could result in the modification or exposure of sensitive data or possibly even execution of arbitrary code.

観察された例

参考文献 説明

CVE-2007-6382

arbitrary Java code execution via exposed method

CVE-2007-1112

security tool ActiveX control allows download or upload of files

潜在的な緩和策

Phases : Architecture and Design
If you must expose a method, make sure to perform input validation on all arguments, limit access to authorized parties, and protect against all possible vulnerabilities.
Phases : Architecture and Design // Implementation

検出方法

Automated Static Analysis

Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)
有効性 : High

脆弱性マッピングノート

理由 : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
コメント : 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.

関連する攻撃パターン

CAPEC ID 攻撃パターン名
CAPEC-500 WebView Injection
An adversary, through a previously installed malicious application, injects code into the context of a web page displayed by a WebView component. Through the injected code, an adversary is able to manipulate the DOM tree and cookies of the page, expose sensitive information, and can launch attacks against the web application from within the web page.

ノート

Under-reported and under-studied. This weakness could appear in any technology, language, or framework that allows the programmer to provide a functional interface to external parties, but it is not heavily reported. In 2007, CVE began showing a notable increase in reports of exposed method vulnerabilities in ActiveX applications, as well as IOCTL access to OS-level resources. These weaknesses have been documented for Java applications in various secure programming sources, but there are few reports in CVE, which suggests limited awareness in most parts of the vulnerability research community.

参考文献

REF-503

Developing Secure ActiveX Controls
Microsoft.
https://learn.microsoft.com/en-us/previous-versions//ms533046(v=vs.85)?redirectedfrom=MSDN

REF-510

How to stop an ActiveX control from running in Internet Explorer
Microsoft.
https://support.microsoft.com/en-us/help/240797/how-to-stop-an-activex-control-from-running-in-internet-explorer

登録情報

名前 組織 日付 リリース日 Version
CWE Content Team MITRE 2008-11-24 +00:00 2008-11-24 +00:00 1.1

変更履歴

名前 組織 日付 コメント
CWE Content Team MITRE 2009-01-12 +00:00 updated Name
CWE Content Team MITRE 2009-07-27 +00:00 updated Relationships
CWE Content Team MITRE 2009-12-28 +00:00 updated Applicable_Platforms, Likelihood_of_Exploit
CWE Content Team MITRE 2010-02-16 +00:00 updated Common_Consequences, Demonstrative_Examples, Potential_Mitigations, References, Related_Attack_Patterns, Relationships
CWE Content Team MITRE 2010-04-05 +00:00 updated Demonstrative_Examples, Related_Attack_Patterns
CWE Content Team MITRE 2010-06-21 +00:00 updated Common_Consequences
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences
CWE Content Team MITRE 2012-05-11 +00:00 updated Relationships
CWE Content Team MITRE 2014-02-18 +00:00 updated Demonstrative_Examples
CWE Content Team MITRE 2014-07-30 +00:00 updated Relationships
CWE Content Team MITRE 2015-12-07 +00:00 updated Relationships
CWE Content Team MITRE 2017-11-08 +00:00 updated Likelihood_of_Exploit, References, Relationships
CWE Content Team MITRE 2019-06-20 +00:00 updated Relationships
CWE Content Team MITRE 2020-02-24 +00:00 updated Relationships
CWE Content Team MITRE 2023-01-31 +00:00 updated Description, Related_Attack_Patterns, Relationships
CWE Content Team MITRE 2023-04-27 +00:00 updated Detection_Factors, References, Relationships
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2025-12-11 +00:00 updated Relationships
CWE Content Team MITRE 2026-10-28 +00:00 updated Common_Consequences, Description, Dimensions
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