Summary
Impact: Security Feature Bypass. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?
The attacker must have read access to the target site within SharePoint.
What kind of security feature could be bypassed by successfully exploiting this vulnerability?
The attacker would be able to bypass the protection in SharePoint blocking the HTTP request based on IP range. If an attacker successfully exploited this vulnerability, they could validate the presence or absence of an HTTP endpoint within the blocked IP range.
Security updates
16.0.5278.1000 — https://support.microsoft.com/kb/5002136
16.0.10383.20001 — https://support.microsoft.com/kb/5002135
16.0.14326.20742 — https://support.microsoft.com/help/5002145
15.0.5423.1000 — https://support.microsoft.com/kb/5002155
Vulnerabilities 1
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Medium 4.3
Microsoft SharePoint Server Security Feature Bypass Vulnerability
Microsoft SharePoint Server Security Feature Bypass Vulnerability
Revision history
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#1
Information published.
References
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CVE-2022-21968 Microsoft SharePoint Server Security Feature Bypass Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21968
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss