H3XAOperational intelligence
Live analytical pictureEvidence before assessment
Threat intelligence / Vulnerability

CVE-2021-21985

VMware vSphere Client contains an improper input validation vulnerability in the Virtual SAN Health Check plug-in, which is enabled by default in vCenter Server, which allows for remote code execution.

Vulnerability
TypeVulnerability
External ID—
First seen2021-11-03
Last seen2021-11-03

Confidence

—

VMware vSphere Client contains an improper input validation vulnerability in the Virtual SAN Health Check plug-in, which is enabled by default in vCenter Server, which allows for remote code execution.

Labels

exploitedkevransomware

CISA KEV context

Vendor / productVMware vCenter Server
Added2021-11-03
Due date2021-11-17
53 recorded

Relationships

mitigates
from Remediate CVE-2021-21985
Mitigation
related-to
to Accessing/Intercepting/Modifying HTTP Cookies
Technique
related-to
to AJAX Footprinting
Technique
related-to
to Blind SQL Injection
Technique
related-to
to Buffer Overflow in an API Call
Technique
related-to
to Buffer Overflow in Local Command-Line Utilities
Technique
related-to
to Buffer Overflow via Environment Variables
Technique
related-to
to Buffer Overflow via Parameter Expansion
Technique
related-to
to Buffer Overflow via Symbolic Links
Technique
related-to
to Client-side Injection-induced Buffer Overflow
Technique
related-to
to Command Line Execution through SQL Injection
Technique
related-to
to Cross-Site Scripting (XSS)
Technique
related-to
to Cross Zone Scripting
Technique
related-to
to DOM-Based XSS
Technique
related-to
to Double Encoding
Technique
related-to
to Embedding NULL Bytes
Technique
related-to
to Exploiting Multiple Input Interpretation Layers
Technique
related-to
to Exploiting Trust in Client
Technique
related-to
to File Content Injection
Technique
related-to
to Filter Failure through Buffer Overflow
Technique
related-to
to Flash Injection
Technique
related-to
to Format String Injection
Technique
related-to
to Fuzzing
Technique
related-to
to Fuzzing for garnering other adjacent user/sensitive data
Technique
related-to
to Input Data Manipulation
Technique
related-to
to LDAP Injection
Technique
related-to
to Leverage Alternate Encoding
Technique
related-to
to MIME Conversion
Technique
related-to
to Object Relational Mapping Injection
Technique
related-to
to OS Command Injection
Technique
related-to
to Overflow Variables and Tags
Technique
related-to
to Oversized Serialized Data Payloads
Technique
related-to
to Postfix, Null Terminate, and Backslash
Technique
related-to
to Reflection Injection
Technique
related-to
to Serialized Data with Nested Payloads
Technique
related-to
to Server Side Include (SSI) Injection
Technique
related-to
to Server Side Request Forgery
Technique
related-to
to Signature Spoof
Technique
related-to
to SQL Injection through SOAP Parameter Tampering
Technique
related-to
to String Format Overflow in syslog()
Technique
related-to
to Subverting Environment Variable Values
Technique
related-to
to URL Encoding
Technique
related-to
to User-Controlled Filename
Technique
related-to
to Using Escaped Slashes in Alternate Encoding
Technique
related-to
to Using Leading 'Ghost' Character Sequences to Bypass Input Filters
Technique
related-to
to Using Slashes and URL Encoding Combined to Bypass Validation Logic
Technique
related-to
to Using Slashes in Alternate Encoding
Technique
related-to
to Using Unicode Encoding to Bypass Validation Logic
Technique
related-to
to Using UTF-8 Encoding to Bypass Validation Logic
Technique
related-to
to Web Server Logs Tampering
Technique
related-to
to XML Injection
Technique
related-to
to XPath Injection
Technique
related-to
to XSS Using MIME Type Mismatch
Technique
4 external

References

nvd
CVE-2021-21985
open
cwe
CWE-20
open
cwe
CWE-470
open
cwe
CWE-918
open
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