QID 730102

Date Published: 2021-06-03

QID 730102: VMware vCenter Server Remote Code Execution (RCE) Vulnerability (VMSA-2021-0010) (UNAUTHENTICATED))

VMware vCenter is the centralized management tool for the vSphere suite.

The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. (CVE-2021-21985)

Affected Versions:
VMware vCenter Server 7.0 prior to build 17958471
VMware vCenter Server 6.7 prior to build 18010531
VMware vCenter Server 6.5 prior to build 17994927

QID Detection Logic (Unauthenticated):
The QID sends a POST request to " /ui/h5-vsan/rest/proxy/service/com.vmware.vsan.client.services.capability.VsanCapabilityProvider/getHostCapabilityData" to detect if the target is vulnerable or not.
Note: If the workaround mentioned by the vendor is applied, QID will not flag.

Successful exploitation of the vulnerability will allow remote code execution.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as Critical - 10 severity.
    • Solution
    VMware has released patch for VMware vCenter Server 7.0/6.7/6.5 ,

    Refer to VMware advisory VMSA-2021-0010 for more information.

    Workaround:
    Affected Plugins must be set to "incompatible." Disabling a plugin from within the UI does not prevent exploitation. Please refer to KB article KB83829 for more information.

    Vendor References

    CVEs related to QID 730102

    CVE-2021-21985 |
    Software Advisories
    Advisory ID Software Component Link
    VMSA-2021-0010 URL Logo www.vmware.com/security/advisories/VMSA-2021-0010.html
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