Attacker Value
Unknown
1
CVE-2021-28310
1
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
Add References:
CVE-2021-28310
(Last updated July 30, 2024) ▾
MITRE ATT&CK
Log in to add MITRE ATT&CK tag
Add MITRE ATT&CK tactics and techniques that apply to this CVE.
MITRE ATT&CK
Select the MITRE ATT&CK Tactics that apply to this CVE
Collection
Select any Techniques used:
Command and Control
Select any Techniques used:
Credential Access
Select any Techniques used:
Defense Evasion
Select any Techniques used:
Discovery
Select any Techniques used:
Execution
Select any Techniques used:
Exfiltration
Select any Techniques used:
Impact
Select any Techniques used:
Initial Access
Select any Techniques used:
Lateral Movement
Select any Techniques used:
Persistence
Select any Techniques used:
Privilege Escalation
Select any Techniques used:
Topic Tags
Select the tags that apply to this CVE (Assessment added tags are disabled and cannot be removed)
What makes this of high-value to an attacker?
What makes this of low-value to an attacker?
Description
Win32k Elevation of Privilege Vulnerability
Add Assessment
1
Technical Analysis
Ah, another day, another Win32k privilege escalation used in the wild. Securelist has a good write-up on this bug, which they discovered because it was used in a BITTER APT zero-day attack in (it sounds like) conjunction with CVE-2021-1732 (there’s a Metasploit module for the second vuln).
Would you also like to delete your Exploited in the Wild Report?
Delete Assessment Only Delete Assessment and Exploited in the Wild ReportCVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Windows 10 Version 1803 publication
Windows 10 Version 1809 publication
Windows Server 2019 publication
Windows Server 2019 (Server Core installation) publication
Windows 10 Version 1909 publication
Windows Server, version 1909 (Server Core installation) publication
Windows 10 Version 2004 publication
Windows Server version 2004 publication
Windows 10 Version 20H2 publication
Windows Server version 20H2 publication
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- microsoft
Products
- windows 10 1803 -,
- windows 10 1809 -,
- windows 10 1909 -,
- windows 10 2004 -,
- windows 10 20h2 -,
- windows server 1909 -,
- windows server 2004 -,
- windows server 2019 -,
- windows server 20h2 -
Exploited in the Wild
Would you like to delete this Exploited in the Wild Report?
Yes, delete this reportWould you like to delete this Exploited in the Wild Report?
Yes, delete this reportAttackerKB Worker indicated source as
Government or Industry Alert (https://www.cisa.gov/known-exploited-vulnerabilities-catalog)
Would you like to delete this Exploited in the Wild Report?
Yes, delete this reportReferences
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below: