9.8

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. 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Lync Version 2013
Microsoft ≫ Sharepoint Foundation Version 2013 Update sp1
Microsoft ≫ Sharepoint Server Version 2019
Microsoft ≫ Skype For Business Version 2015 Update cumulative_update_8
Microsoft ≫ Skype For Business Version 2019 Update cumulative_update_2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 5.85% 0.922
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NIST 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1025
Patch
Vendor Advisory