VMware vCenter Server/Cloud Foundation vSphere Client Remote Privilege Escalation
|CVSS Meta Temp Score|
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
|Current Exploit Price (≈)|
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
|CTI Interest Score|
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
A vulnerability was found in VMware vCenter Server and Cloud Foundation (Server Management Software) (affected version unknown). It has been declared as critical. Affected by this vulnerability is an unknown code of the component vSphere Client. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was disclosed 02/25/2021 as VMSA-2021-0002. The advisory is shared at vmware.com. This vulnerability is known as CVE-2021-21972. The attack can be launched remotely. A single authentication is needed for exploitation. Technical details are unknown but a public exploit is available.
A public exploit has been developed by Mikhail Klyuchnikov (__mn1__) in JHTML/JSP and been published before and not just after the advisory. It is declared as highly functional. It is possible to download the exploit at swarm.ptsecurity.com. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k.
Upgrading eliminates this vulnerability.
CVSSv3VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.7
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
Vendor Base Score (VMware): 9.8
Vendor Vector (VMware): 🔒
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Status: Highly functional
Author: Mikhail Klyuchnikov (__mn1__)
Programming Language: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
MetaSploit ID: exploits/multi/http/vmware_vcenter_uploadova_rce.
MetaSploit Name: VMware vCenter Server Unauthenticated OVA File Upload RCE
MetaSploit File: 🔒
Threat IntelligenceThreat: 🔍
0-Day Time: 🔒
Timeline02/24/2021 Exploit disclosed
02/25/2021 +1 days Advisory disclosed
02/25/2021 +0 days VulDB entry created
02/26/2021 +1 days VulDB last update
CVE: CVE-2021-21972 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20060413
EntryCreated: 02/25/2021 06:43 AM
Updated: 02/26/2021 12:56 PM
Changes: (1) vulnerability_cvss3_vendor_av
Committer: vuln_info, misc
Interested in the pricing of exploits?
See the underground prices here!