Vulnerability Details CVE-2020-1025
An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access.
To exploit this vulnerability, an attacker would need to modify the token.
The update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.081
EPSS Ranking 91.7%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
References
Products affected by CVE-2020-1025
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cpe:2.3:a:microsoft:lync:2013
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cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016
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cpe:2.3:a:microsoft:sharepoint_foundation:2013
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cpe:2.3:a:microsoft:sharepoint_server:2019
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cpe:2.3:a:microsoft:skype_for_business:2015
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cpe:2.3:a:microsoft:skype_for_business:2019