Windows SYSTEM access via Pre-Logon authentication bypass
Published Oct 3, 2023 · Updated Sep 20, 2024
Authentication bypass in SonicWall NetExtender 10.2.336 and earlier allows remote attackers to gain Windows SYSTEM privileges. The flaw is in the Windows Pre-Logon authentication path, but SonicWall has not disclosed which validation operation mishandles attacker-controlled input. An attacker must reach the adjacent-network path exposed before Windows sign-in; success grants full control of the host.
Summary
What happened
Authentication bypass in SonicWall NetExtender 10.2.336 and earlier allows remote attackers to gain Windows SYSTEM privileges. The flaw is in the Windows Pre-Logon authentication path, but SonicWall has not disclosed which validation operation mishandles attacker-controlled input. An attacker must reach the adjacent-network path exposed before Windows sign-in; success grants full control of the host.
The record
- CVE
- CVE-2023-44218
- Published
- Oct 3, 2023
- Updated
- Sep 20, 2024
- Vendor
- SonicWall
- Product
- NetExtender
- Classifications
- CWE-267, T1068
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 3, 2023CVE publishedPublication date reported by the CVE source.
- Sep 20, 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=0 <=10.2.336
- Affected versionversion=10.2.336 and earlier versions
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
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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