SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-37085

VMware ESXi Authentication Bypass Vulnerability

KEVHIGH 7.2EPSS 26.8%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 20 August 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

VMware ESXi contains an authentication bypass vulnerability. A malicious actor with sufficient Active Directory (AD) permissions can gain full access to an ESXi host that was previously configured to use AD for user management https://blogs.vmware.com/vsphere/2012/09/joining-vsphere-hosts-to-active-directory.html by re-creating the configured AD group ('ESXi Admins' by default) after it was deleted from AD.

CVSS 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
26.77% probability · 98th percentile
CISA KEV
Listed 30 July 2024 · due 20 August 2024 · used in ransomware campaigns
Weakness
CWE-287, CWE-305
Affected
vmware/cloud foundation · vmware/esxi
Source
security@vmware.com

CISA notes

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/24505; https://nvd.nist.gov/vuln/detail/CVE-2024-37085

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.