Local information disclosure via mutable notification PendingIntents
Published Jun 22, 2021 · Updated Aug 3, 2024
Information disclosure in Android 11 AccountManagerService allows local users to read protected information via a mutable notification PendingIntent. The two doNotification paths create notification content intents with FLAG_CANCEL_CURRENT but omit FLAG_IMMUTABLE, leaving the wrapped intents mutable. Execution with User privileges is required, but no user interaction is needed; successful exploitation discloses information without altering data or interrupting service.
Summary
What happened
Information disclosure in Android 11 AccountManagerService allows local users to read protected information via a mutable notification PendingIntent. The two doNotification paths create notification content intents with FLAG_CANCEL_CURRENT but omit FLAG_IMMUTABLE, leaving the wrapped intents mutable. Execution with User privileges is required, but no user interaction is needed; successful exploitation discloses information without altering data or interrupting service.
The record
- CVE
- CVE-2021-0572
- Published
- Jun 22, 2021
- Updated
- Aug 3, 2024
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-732
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 22, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=Android-11
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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