Local privilege escalation via unchecked ScheduleWork authorization
Published Jun 9, 2020 · Updated Aug 4, 2024
Windows Update Orchestrator Service in Microsoft Windows 10 and Server Core releases through 2004 allows local users to gain SYSTEM privileges via COM. The UniversalOrchestrator ScheduleWork method accepts requests without impersonating or authorizing the caller, then queues attacker-controlled command arguments for a SYSTEM service process. Local code execution and user interaction are required, and successful exploitation grants complete local-system control including data access, modification, and service disruption.
Summary
What happened
Windows Update Orchestrator Service in Microsoft Windows 10 and Server Core releases through 2004 allows local users to gain SYSTEM privileges via COM. The UniversalOrchestrator ScheduleWork method accepts requests without impersonating or authorizing the caller, then queues attacker-controlled command arguments for a SYSTEM service process. Local code execution and user interaction are required, and successful exploitation grants complete local-system control including data access, modification, and service disruption.
The record
- CVE
- CVE-2020-1313
- Published
- Jun 9, 2020
- Updated
- Aug 4, 2024
- Vendor
- Microsoft
- Product
- Windows 10 Version 1909
- Classifications
- T1068
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 9, 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
- CVE-2020-1313 UniversalOrchestrator ScheduleWork PoCfunctional · demonstrated
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Technologies
Your stack
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Your stack
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