CVE-2021-22018

VMware vCenter Server Appliance Update Manager Directory Traversal Arbitrary File Deletion Vulnerability

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The vCenter Server contains an arbitrary file deletion vulnerability in a VMware vSphere Life-cycle Manager plug-in. A malicious actor with network access to port 9087 on vCenter Server may exploit this issue to delete non critical files.

vCenter Server contiene una vulnerabilidad de eliminación arbitraria de archivos en un complemento de VMware vSphere Life-cycle Manager. Un actor malicioso con acceso de red al puerto 9087 en vCenter Server puede explotar este problema para eliminar archivos no críticos

This vulnerability allows remote attackers to delete arbitrary files on affected installations of VMware vCenter Server Appliance. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the Update Manager. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to delete files in the context of the service account.

*Credits: Sergey Gerasimov of Solidlab

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

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
2024-08-03 CVE Updated
2024-10-26 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://www.vmware.com/security/advisories/VMSA-2021-0020.html	2021-09-30

URL	Date	SRC

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"				>= 4.0 < 4.3.1 Search vendor "Vmware" for product "Cloud Foundation" and version " >= 4.0 < 4.3.1"		-		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