Kernel privilege escalation via unrestricted mapping IOCTLs
Published May 26, 2024 · Updated Feb 13, 2025
Kernel memory disclosure in Marvin Test Solutions Hardware Access Driver before 5.0.5.0 allows local users to gain all privileges. Hw64.sys services IOCTL 0x9c4064b8 through MmMapIoSpace and IOCTL 0x9c406490 through ZwMapViewOfSection, mapping caller-selected kernel memory into user mode. Local code execution is required; successful reads expose kernel memory and enable full privilege escalation.
Summary
What happened
Kernel memory disclosure in Marvin Test Solutions Hardware Access Driver before 5.0.5.0 allows local users to gain all privileges. Hw64.sys services IOCTL 0x9c4064b8 through MmMapIoSpace and IOCTL 0x9c406490 through ZwMapViewOfSection, mapping caller-selected kernel memory into user mode. Local code execution is required; successful reads expose kernel memory and enable full privilege escalation.
The record
- CVE
- CVE-2024-36054
- Published
- May 26, 2024
- Updated
- Feb 13, 2025
- Vendor
- Marvin Test Solutions
- Product
- Hardware Access Driver (HW)
- Classifications
- CWE-125, T1068
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 26, 2024CVE publishedPublication date reported by the CVE source.
- Feb 13, 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=0 <5.0.5.0
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
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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