CVE-2023-20867: VMware Tools Authentication Bypass Vulnerability
VMware Tools contains an authentication bypass vulnerability in the vgauth module. A fully compromised ESXi host can force VMware Tools to fail to authenticate host-to-guest operations, impacting the confidentiality and integrity of the guest virtual machine. An attacker must have root access over ESXi to exploit this vulnerability.
| Vendor | VMware |
|---|---|
| Product | Tools |
| Date added to KEV | 2023-06-23 |
| Due date (BOD 22-01) | 2023-07-14 |
| Known ransomware campaign use | Unknown |
| CWE | CWE-287 |
| Required action | Apply updates per vendor instructions. |
What to do
- Identify every instance of VMware Tools in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Apply updates per vendor instructions.
- Federal civilian agencies must act by 2023-07-14 under BOD 22-01; other organizations can use the same date as a target.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
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