名稱: Use of Implicit Intent for Sensitive Communication

The Android application uses an implicit intent for transmitting sensitive data to other applications.

一般資訊

引入方式

Architecture and Design

適用平台

程式語言

類別： Not Language-Specific (Undetermined)

技術

類別： Mobile (Undetermined)

常見後果

範圍	影響	可能性
Confidentiality	Read Application Data 注意：Other applications, possibly untrusted, can read the data that is offered through the Intent.
Integrity	Varies by Context 注意：The application may handle responses from untrusted applications on the device, which could cause it to perform unexpected or unauthorized actions.

觀察到的案例

參考資料	描述
CVE-2022-4903	An Android application does not use FLAG_IMMUTABLE when creating a PendingIntent.

潛在緩解措施

Phases : Implementation
If the application only requires communication with its own components, then the destination is always known, and an explicit intent could be used.

偵測方法

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.)
有效性 : High

漏洞對應備注

理由說明 : 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.
備註 : 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.

參考資料

REF-922

Analyzing Inter-Application Communication in Android
Erika Chin, Adrienne Porter Felt, Kate Greenwood, David Wagner.
http://www.eecs.berkeley.edu/~daw/papers/intents-mobisys11.pdf

REF-923

Security Tips
Android Open Source Project.
https://developer.android.com/training/articles/security-tips#ContentProviders

提交

名稱	機構	日期	發布日期	Version
CWE Content Team	MITRE	2013-07-09 +00:00	2013-07-17 +00:00	2.5

修改記錄

名稱	機構	日期	備註
CWE Content Team	MITRE	2014-02-18 +00:00	updated Demonstrative_Examples, Description, References
CWE Content Team	MITRE	2017-11-08 +00:00	updated References
CWE Content Team	MITRE	2020-02-24 +00:00	updated Applicable_Platforms, Relationships
CWE Content Team	MITRE	2020-06-25 +00:00	updated Demonstrative_Examples
CWE Content Team	MITRE	2021-03-15 +00:00	updated Maintenance_Notes
CWE Content Team	MITRE	2021-10-28 +00:00	updated 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	2023-10-26 +00:00	updated Observed_Examples
CWE Content Team	MITRE	2025-12-11 +00:00	updated Weakness_Ordinalities
CWE Content Team	MITRE	2026-10-28 +00:00	updated Relationships

CWE-927 詳細資料

CWE-927