CVE-2021-21980

7.5HIGH

Key Information:

Vendor
Vmware
Status
Vmware Vcenter Server And Vmware Cloud Foundation
Vendor
CVE Published:
24 November 2021

Badges

👾 Exploit Exists🟡 Public PoC

Summary

The vSphere Web Client (FLEX/Flash) contains an unauthorized arbitrary file read vulnerability. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to gain access to sensitive information.

Affected Version(s)

VMware vCenter Server and VMware Cloud Foundation VMware vCenter Server (6.7 before 6.7 U3p and 6.5 before 6.5 U3r) and VMware Cloud Foundation 3.x

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

westone-CVE-2021-21980-scanner
Created by Osyanina

References

https://www.vmware.com/security/advisories/VMSA-2021-0027...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.