Password-policy bypass via third-party filter calls
Published Jan 14, 2020 · Updated Aug 4, 2024
Security feature bypass in Microsoft Windows and Windows Server allows local users to evade password-update protections. The flaw occurs when Windows invokes third-party password filters during an update, but Microsoft has not disclosed the mishandled validation or state transition. Exploitation requires high local privileges and compromises password-policy integrity without reported confidentiality or availability impact.
Summary
What happened
Security feature bypass in Microsoft Windows and Windows Server allows local users to evade password-update protections. The flaw occurs when Windows invokes third-party password filters during an update, but Microsoft has not disclosed the mishandled validation or state transition. Exploitation requires high local privileges and compromises password-policy integrity without reported confidentiality or availability impact.
The record
- CVE
- CVE-2020-0621
- Published
- Jan 14, 2020
- Updated
- Aug 4, 2024
- Vendor
- Microsoft
- Product
- Windows
- Classifications
- CWE-613
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jan 14, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 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=10 Version 1709 for 32-bit Systems
- Affected versionversion=10 Version 1709 for ARM64-based Systems
- Affected versionversion=10 Version 1709 for x64-based Systems
- Affected versionversion=10 Version 1803 for 32-bit Systems
- Affected versionversion=10 Version 1803 for ARM64-based Systems
- Affected versionversion=10 Version 1803 for x64-based Systems
- Affected versionversion=10 Version 1809 for 32-bit Systems
- Affected versionversion=10 Version 1809 for ARM64-based Systems
- Affected versionversion=10 Version 1809 for x64-based Systems
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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