CWE-927
Use of Implicit Intent for Sensitive Communication
2013-07-17
00h00 +00:00
00h00 +00:00
特定のCWEの通知
特定のCWEの変更情報をいち早くお届けします。
名前: Use of Implicit Intent for Sensitive Communication
The Android application uses an implicit intent for transmitting sensitive data to other applications.
一般情報
導入モード
Architecture and Design適用可能なプラットフォーム
言語
クラス： Not Language-Specific (Undetermined)テクノロジー
クラス： Mobile (Undetermined)一般的な結果
| スコープ | 影響 | 可能性 |
|---|---|---|
| Confidentiality | Read Application Data 注記：Other applications, possibly untrusted, can read the data that is offered through the Intent. | |
| Integrity | Varies by Context 注記：The application may handle responses from untrusted applications on the device, which could cause it to perform unexpected or unauthorized actions. |
観察された例
| 参考文献 | 説明 |
|---|---|
CVE-2022-4903 | An Android application does not use FLAG_IMMUTABLE when creating a PendingIntent. |
潜在的な緩和策
Phases : ImplementationIf the application only requires communication with its own components, then the destination is always known, and an explicit intent could be used.
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 Variant 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.
参考文献
REF-922
Analyzing Inter-Application Communication in AndroidErika Chin, Adrienne Porter Felt, Kate Greenwood, David Wagner.
http://www.eecs.berkeley.edu/~daw/papers/intents-mobisys11.pdf
REF-923
Security TipsAndroid Open Source Project.
https://developer.android.com/training/articles/security-tips#ContentProviders
登録情報
| 名前 | 組織 | 日付 | リリース日 | Version |
|---|---|---|---|---|
| CWE Content Team | MITRE | 2.5 |
変更履歴
| 名前 | 組織 | 日付 | コメント |
|---|---|---|---|
| CWE Content Team | MITRE | updated Demonstrative_Examples, Description, References | |
| CWE Content Team | MITRE | updated References | |
| CWE Content Team | MITRE | updated Applicable_Platforms, Relationships | |
| CWE Content Team | MITRE | updated Demonstrative_Examples | |
| CWE Content Team | MITRE | updated Maintenance_Notes | |
| CWE Content Team | MITRE | updated Relationships | |
| CWE Content Team | MITRE | updated Detection_Factors, References, Relationships | |
| CWE Content Team | MITRE | updated Mapping_Notes | |
| CWE Content Team | MITRE | updated Observed_Examples | |
| CWE Content Team | MITRE | updated Weakness_Ordinalities | |
| CWE Content Team | MITRE | updated Relationships |
