Kernel-address disclosure via physical-memory mapping
Published Mar 7, 2024 · Updated Aug 1, 2024
Kernel memory disclosure in MSI Afterburner 4.6.5.16370 allows local users with high integrity to obtain a kernel virtual address. RTCore64.sys handles IOCTL 0x80002040 by mapping a caller-selected physical range with MmMapIoSpace and returning the resulting nonpaged kernel virtual address in the system buffer. A high-integrity process must open the driver handle; the demonstrated request exposes writable and executable BIOS-backed memory and the kernel mapping address.
Summary
What happened
Kernel memory disclosure in MSI Afterburner 4.6.5.16370 allows local users with high integrity to obtain a kernel virtual address. RTCore64.sys handles IOCTL 0x80002040 by mapping a caller-selected physical range with MmMapIoSpace and returning the resulting nonpaged kernel virtual address in the system buffer. A high-integrity process must open the driver handle; the demonstrated request exposes writable and executable BIOS-backed memory and the kernel mapping address.
The record
- CVE
- CVE-2024-1460
- Published
- Mar 7, 2024
- Updated
- Aug 1, 2024
- Vendor
- Micro-Star International
- Product
- MSI Afterburner
- Classifications
- CWE-200, CAPEC-131
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Mar 7, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 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=4.6.5.16370
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.
Weakness, pattern, technique
Public exploit references
- Fluid Attacks RTCore64.sys IOCTL proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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