SYSTEM privilege escalation via attacker-controlled memmove length
Published Mar 26, 2023 · Updated Aug 2, 2024
Stack-based buffer overflow in IObit Malware Fighter 9.4.0.776 allows local users to gain SYSTEM privileges through a driver IOCTL. IMFCameraProtect.sys passes an attacker-controlled source address and length from IOCTL 0x8018E000 or 0x8018E004 to memmove, overflowing a kernel stack buffer. A low-privileged local account that can submit either IOCTL can execute code as SYSTEM; remote access alone does not reach the handler.
Summary
What happened
Stack-based buffer overflow in IObit Malware Fighter 9.4.0.776 allows local users to gain SYSTEM privileges through a driver IOCTL. IMFCameraProtect.sys passes an attacker-controlled source address and length from IOCTL 0x8018E000 or 0x8018E004 to memmove, overflowing a kernel stack buffer. A low-privileged local account that can submit either IOCTL can execute code as SYSTEM; remote access alone does not reach the handler.
The record
- CVE
- CVE-2023-1646
- Published
- Mar 26, 2023
- Updated
- Aug 2, 2024
- Vendor
- IObit
- Product
- IObit Malware Fighter
- Classifications
- CWE-787, CWE-121, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 26, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=9.4.0.776
What conditions does exploitation require?
What is affected?
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
- IMFCameraProtectExploit LPE proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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