CVE-2020-1025: Microsoft Office Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation, aka 'Microsoft Office Elevation of Privilege Vulnerability'.
Other sources
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.
— NVD
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2020-1025?
CVE-2020-1025 is an elevation of privilege vulnerability that exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation.
What software is affected by CVE-2020-1025?
Microsoft Lync 2013, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Foundation 2013 SP1, Microsoft SharePoint Server 2019, Microsoft Skype for Business 2015 Cumulative Update 8, and Microsoft Skype for Business 2019 Cumulative Update 2 are affected by CVE-2020-1025.
What is the severity of CVE-2020-1025?
CVE-2020-1025 has a severity rating of critical with a score of 9.8.
How do I fix CVE-2020-1025?
To fix CVE-2020-1025, users should apply the necessary security updates provided by Microsoft.
Where can I find more information about CVE-2020-1025?
You can find more information about CVE-2020-1025 on the Microsoft Security Guidance advisory page: [link](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1025)