Local privilege escalation via unchecked driver indices
Published Jan 26, 2023 · Updated Mar 31, 2025
Improper input validation in AdGuard for Windows x86 7.11 and earlier allows local users to gain elevated privileges through its WFP driver. The adgnetworkwfpdrv.sys edit and unlink IOCTL handlers fail to validate attacker-controlled item indices and link values, creating kernel-memory write primitives. A low-privileged local account can use those writes to weaken the AdGuard service process security descriptor and inject code into that elevated service.
Summary
What happened
Improper input validation in AdGuard for Windows x86 7.11 and earlier allows local users to gain elevated privileges through its WFP driver. The adgnetworkwfpdrv.sys edit and unlink IOCTL handlers fail to validate attacker-controlled item indices and link values, creating kernel-memory write primitives. A low-privileged local account can use those writes to weaken the AdGuard service process security descriptor and inject code into that elevated service.
The record
- CVE
- CVE-2022-45770
- Published
- Jan 26, 2023
- Updated
- Mar 31, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-20, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 26, 2023CVE publishedPublication date reported by the CVE source.
- Mar 31, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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
- CVE-2022-45770 LPE exploitfunctional · demonstrated
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Technologies
Your stack
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Your stack
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