CVE-2023-20867
Description
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.
CISA KEV
- Vendor
- VMware
- Product
- Tools
- Due date
- 2023-07-14
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
AlmaLinux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | open-vm-tools-desktop-12.1.5-1.el9_2.1.alma.aarch64.rpm |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2:12.2.5-1 |
| sid | Fixed | 2:12.2.5-1 |
| forky | Fixed | 2:12.2.5-1 |
| bullseye | Fixed | 2:11.2.5-2+deb11u2 |
| bookworm | Fixed | 2:12.2.0-1+deb12u1 |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Rocky Linux Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
References
- https://access.redhat.com/errata/RHSA-2023:3948
- https://errata.rockylinux.org/RLSA-2023:3949
- https://www.suse.com/security/cve/CVE-2023-20867.html
- https://errata.rockylinux.org/RLSA-2023:3948
- https://security-tracker.debian.org/tracker/CVE-2023-20867
- https://www.vmware.com/security/advisories/VMSA-2023-0013.html; https://nvd.nist.gov/vuln/detail/CVE-2023-20867
- https://access.redhat.com/errata/RHSA-2023:3949
- https://bugzilla.redhat.com/2213087
- https://errata.almalinux.org/8/ALSA-2023-3949.html
- https://errata.almalinux.org/9/ALSA-2023-3948.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.