Local privilege escalation via insecure file creation
Published Feb 11, 2020 · Updated Aug 4, 2024
Elevation of privilege in Microsoft Windows allows local users to overwrite or create files in secured locations through dssvc.dll. The library's file-creation handling fails to preserve location protections, permitting an overwrite or new file in a secured directory. A user must already have local low-privilege access; successful exploitation raises privileges and can compromise system confidentiality, integrity, and availability.
Summary
What happened
Elevation of privilege in Microsoft Windows allows local users to overwrite or create files in secured locations through dssvc.dll. The library's file-creation handling fails to preserve location protections, permitting an overwrite or new file in a secured directory. A user must already have local low-privilege access; successful exploitation raises privileges and can compromise system confidentiality, integrity, and availability.
The record
- CVE
- CVE-2020-0739
- Published
- Feb 11, 2020
- Updated
- Aug 4, 2024
- Vendor
- Microsoft
- Product
- Windows 10 Version 1909
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 11, 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?
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- Affected versionversion=unspecified
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
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Technologies
Your stack
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Your stack
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