Attacker Value
Moderate
CVE-2021-31199
CVE-2021-31199
(Last updated July 30, 2024) ▾
MITRE ATT&CK
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Description
Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability
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2
Technical Analysis
Not got much to contribute due to limited public information at this time but I did want to note that the Confidentiality and Integrity scores for this are oddly listed as Low, the Availability as None, and yet Scope is marked as Changed. My guess is that this is some sort of sandbox related escape given that if we were able to get higher permissions these scores would be a lot higher.
1
Technical Analysis
This vulnerability is abused in an exploitation chain. According to the Microsoft advisory it is abused with Adobe Acrobat CVE-2021-28550.
CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
5.2 Medium
Impact Score:
2.7
Exploitability Score:
2
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Changed
Confidentiality (C):
Low
Integrity (I):
Low
Availability (A):
None
General Information
Vendors
- microsoft
Products
- windows 10 1507,
- windows 10 1607,
- windows 10 1809,
- windows 10 1909,
- windows 10 2004,
- windows 10 20h2,
- windows 10 21h1,
- windows 7 -,
- windows 8.1 -,
- windows rt 8.1 -,
- windows server 2004,
- windows server 2008 -,
- windows server 2008 r2,
- windows server 2012 -,
- windows server 2012 r2,
- windows server 2016,
- windows server 2019,
- windows server 20h2
Exploited in the Wild
