Kernel-memory disclosure via attacker-controlled IOCTL byte count
Published Oct 3, 2024 · Updated Oct 3, 2024
Out-of-bounds read in Faronics Deep Freeze 9.00.020.5760 allows local users to disclose adjacent kernel memory through a driver request. The FarDisk.sys handler for IOCTL 0x70014 takes the second DWORD of a user-controlled SystemBuffer as the response byte count, causing the I/O manager to return data beyond the allocated buffer. A low-privileged local user can expose adjacent user and kernel addresses without user interaction, while no data modification is reported.
Summary
What happened
Out-of-bounds read in Faronics Deep Freeze 9.00.020.5760 allows local users to disclose adjacent kernel memory through a driver request. The FarDisk.sys handler for IOCTL 0x70014 takes the second DWORD of a user-controlled SystemBuffer as the response byte count, causing the I/O manager to return data beyond the allocated buffer. A low-privileged local user can expose adjacent user and kernel addresses without user interaction, while no data modification is reported.
The record
- CVE
- CVE-2024-8159
- Published
- Oct 3, 2024
- Updated
- Oct 3, 2024
- Vendor
- Faronics
- Product
- Deep Freeze
- Classifications
- CWE-125, CAPEC-540
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 3, 2024CVE publishedPublication date reported by the CVE source.
- Oct 3, 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=9.00.020.5760
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
- Fluid Attacks IOCTL 0x70014 proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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