VDB
CVE-2020-1025
CVE-2020-1025
PUBLISHED
CVSS 7.5 HIGH
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.
EPSS 15.83% · 94.9th percentile
Risk Scores
CVSS v2.0
7.5
EPSS Score
15.83%
94.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 |
| Microsoft | Microsoft Lync Server 2013 | 0 |
| microsoft | lync | 2013 |
| microsoft | sharepoint_enterprise_server | 2016 |
| Microsoft | Skype for Business Server 2019 CU2 | 7.0.0 |
| microsoft | sharepoint_server | 2019 |
| microsoft | sharepoint_foundation | 2013 |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 |
| microsoft | skype_for_business | 2019, 2015 |
| Microsoft | Microsoft SharePoint Foundation 2013 Service Pack 1 | 15.0.0 |
| Microsoft | Skype for Business Server 2015 CU 8 | 2015 CU 8 |
Timeline
- Jul 14, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 22, 2021 EPSS Score
- Oct 25, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 27, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jul 2, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Jan 7, 2023 EPSS Score
- Mar 7, 2023 EPSS Score