Remote privilege escalation via constant KASLR seed
Published Dec 4, 2023 · Updated Dec 2, 2024
Privilege escalation in Android 14 System allows remote attackers to gain elevated privileges without user interaction. The pvmfw modify_for_next_stage routine writes a constant -1 placeholder into the guest device tree as the KASLR seed instead of generating a random value. A network-reachable attacker needs no prior privileges or user action and can defeat guest kernel address randomization to support privilege escalation.
Summary
What happened
Privilege escalation in Android 14 System allows remote attackers to gain elevated privileges without user interaction. The pvmfw modify_for_next_stage routine writes a constant -1 placeholder into the guest device tree as the KASLR seed instead of generating a random value. A network-reachable attacker needs no prior privileges or user action and can defeat guest kernel address randomization to support privilege escalation.
The record
- CVE
- CVE-2023-40082
- Published
- Dec 4, 2023
- Updated
- Dec 2, 2024
- Vendor
- Product
- Android
- Classifications
- T1068
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 4, 2023CVE publishedPublication date reported by the CVE source.
- Dec 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
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- Affected versionversion=14
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What is affected?
Published CVSS scores
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Attacks
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Technologies
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