Local privilege escalation via content-scheme intent bypass
Published Jan 28, 2025 · Updated Feb 6, 2025
Privilege escalation in Google Android 12 through 15 allows local users to install an unknown app through a crafted content URI. AccountManagerService.checkKeyIntent resolves the target activity but fails to reject an intent whose data uses the content scheme, letting an untrusted app enlist the service as a confused deputy. Exploitation requires local app execution but no additional privileges or user interaction, and the resulting installation crosses the intended intent-security boundary.
Summary
What happened
Privilege escalation in Google Android 12 through 15 allows local users to install an unknown app through a crafted content URI. AccountManagerService.checkKeyIntent resolves the target activity but fails to reject an intent whose data uses the content scheme, letting an untrusted app enlist the service as a confused deputy. Exploitation requires local app execution but no additional privileges or user interaction, and the resulting installation crosses the intended intent-security boundary.
The record
- CVE
- CVE-2024-40676
- Published
- Jan 28, 2025
- Updated
- Feb 6, 2025
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-843, T1404
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 28, 2025CVE publishedPublication date reported by the CVE source.
- Feb 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=12
- Affected versionversion=12L
- Affected versionversion=13
- Affected versionversion=14
- Affected versionversion=15
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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