Local privilege escalation via reparceled intent validation bypass
Published Jan 21, 2025 · Updated Mar 18, 2025
Unsafe deserialization in Android 12, 12L, 13, 14, and 15 allows local users to escalate privileges via a crafted parcel. AccountManagerService can skip checkKeyIntentParceledCorrectly when KEY_INTENT initially deserializes as null, even though its value changes after reparceling. Exploitation requires local access and user interaction, and successful abuse grants elevated privileges through the Android Framework.
Summary
What happened
Unsafe deserialization in Android 12, 12L, 13, 14, and 15 allows local users to escalate privileges via a crafted parcel. AccountManagerService can skip checkKeyIntentParceledCorrectly when KEY_INTENT initially deserializes as null, even though its value changes after reparceling. Exploitation requires local access and user interaction, and successful abuse grants elevated privileges through the Android Framework.
The record
- CVE
- CVE-2024-49744
- Published
- Jan 21, 2025
- Updated
- Mar 18, 2025
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-276, T1404
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 21, 2025CVE publishedPublication date reported by the CVE source.
- Mar 18, 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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