CVE-2021-31181
Microsoft SharePoint Remote Code Execution Vulnerability
Severity Score
8.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Microsoft SharePoint Remote Code Execution Vulnerability
Una vulnerabilidad de Ejecución de Código Remota de Microsoft SharePoint
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft SharePoint. Authentication is required to exploit this vulnerability.
The specific flaw exists within the handling of server-side controls in WebParts. By specifying a control using a non-canonical string, an unsafe server-side control can be instantiated. An attacker can leverage this vulnerability to execute code in the context of the service account.
*Credits:
Anonymous
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-04-14 CVE Reserved
- 2021-05-11 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2024-11-18 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-21-573 | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| http://packetstormsecurity.com/files/163208/Microsoft-SharePoint-Unsafe-Control-And-ViewState-Remote-Code-Execution.html | 2024-08-03 |
| URL | Date | SRC |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31181 | 2023-08-02 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | Sharepoint Enterprise Server Search vendor "Microsoft" for product "Sharepoint Enterprise Server" | 2016 Search vendor "Microsoft" for product "Sharepoint Enterprise Server" and version "2016" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Sharepoint Foundation Search vendor "Microsoft" for product "Sharepoint Foundation" | 2013 Search vendor "Microsoft" for product "Sharepoint Foundation" and version "2013" | sp1 |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Sharepoint Server Search vendor "Microsoft" for product "Sharepoint Server" | 2019 Search vendor "Microsoft" for product "Sharepoint Server" and version "2019" | - |
Affected
| ||||||