// For flags

CVE-2021-22019

VMware vCenter Server Appliance External Control of File Path Denial-of-Service Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The vCenter Server contains a denial-of-service vulnerability in VAPI (vCenter API) service. A malicious actor with network access to port 5480 on vCenter Server may exploit this issue by sending a specially crafted jsonrpc message to create a denial of service condition.

vCenter Server contiene una vulnerabilidad de denegación de servicio en el servicio VAPI (vCenter API). Un actor malicioso con acceso a la red al puerto 5480 en vCenter Server puede explotar este problema mediante el envío de un mensaje jsonrpc especialmente diseñado para crear una condición de denegación de servicio

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of VMware vCenter Server Appliance. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the processing of jsonrpc messages. A crafted request can trigger a file read operation of an endless character stream. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

*Credits: Sergey Gerasimov and George webpentest Noseevich of SolidLab
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-04 CVE Reserved
  • 2021-09-22 CVE Published
  • 2024-06-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Vmware
Search vendor "Vmware"
Cloud Foundation
Search vendor "Vmware" for product "Cloud Foundation"
>= 3.0 < 3.10.2.2
Search vendor "Vmware" for product "Cloud Foundation" and version " >= 3.0 < 3.10.2.2"
-
Affected
Vmware
Search vendor "Vmware"
Cloud Foundation
Search vendor "Vmware" for product "Cloud Foundation"
>= 4.0 < 4.3
Search vendor "Vmware" for product "Cloud Foundation" and version " >= 4.0 < 4.3"
-
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.5
Search vendor "Vmware" for product "Vcenter Server" and version "6.5"
-
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
6.7
Search vendor "Vmware" for product "Vcenter Server" and version "6.7"
-
Affected
Vmware
Search vendor "Vmware"
Vcenter Server
Search vendor "Vmware" for product "Vcenter Server"
7.0
Search vendor "Vmware" for product "Vcenter Server" and version "7.0"
-
Affected