Authenticated remote code execution via undisclosed flaw
Published Jun 8, 2021 · Updated Aug 3, 2024
Remote code execution in Microsoft SharePoint Server allows remote authenticated users with administrative privileges to execute code. Microsoft has not published the affected component, input vector, or faulty operation, leaving the code-level mechanism undisclosed. Exploitation requires high SharePoint privileges and can compromise confidentiality, integrity, and availability in the server process context.
Summary
What happened
Remote code execution in Microsoft SharePoint Server allows remote authenticated users with administrative privileges to execute code. Microsoft has not published the affected component, input vector, or faulty operation, leaving the code-level mechanism undisclosed. Exploitation requires high SharePoint privileges and can compromise confidentiality, integrity, and availability in the server process context.
The record
- CVE
- CVE-2021-31966
- Published
- Jun 8, 2021
- Updated
- Aug 3, 2024
- Vendor
- Microsoft
- Product
- Microsoft SharePoint Foundation 2013
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jun 8, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 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=15.0.0 <15.0.5353.1000
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
No sourced classifications are available.
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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