CVE-2023-20867 VMware Tools Authentication Bypass
Exploited in the wild
Low 3.9
Published
Updated
Check this codebase for CVE-2023-20867 and fix it if it is affected.
What it is: CVE-2023-20867 is a low-severity authentication bypass vulnerability in Debian Debian Linux, published on 13 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2023-20867 in the wild since at least 23 Jun 2023.
Affected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2023-20867/ (Markdown: https://insights.sbomify.com/CVE-2023-20867/index.md)
A compromised ESXi host can bypass VMware Tools authentication, allowing unauthorized access to guest VM confidentiality and integrity.
- Exploited in the wild
- Since 23 Jun 2023
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-20867?
CVE-2023-20867 is a low-severity authentication bypass vulnerability in Debian Debian Linux, published on 13 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2023-20867?
It affects 3 products.
Linux distribution packages (40)
open-vm-tools AlmaLinux:8 | All versions | 12.1.5-2.el8_8.alma |
open-vm-tools-desktop AlmaLinux:8 | All versions | 12.1.5-2.el8_8.alma |
open-vm-tools-salt-minion AlmaLinux:8 | All versions | 12.1.5-2.el8_8.alma |
open-vm-tools-sdmp AlmaLinux:8 | All versions | 12.1.5-2.el8_8.alma |
open-vm-tools AlmaLinux:9 | All versions | 12.1.5-1.el9_2.1.alma |
open-vm-tools-desktop AlmaLinux:9 | All versions | 12.1.5-1.el9_2.1.alma |
open-vm-tools-salt-minion AlmaLinux:9 | All versions | 12.1.5-1.el9_2.1.alma |
open-vm-tools-sdmp AlmaLinux:9 | All versions | 12.1.5-1.el9_2.1.alma |
open-vm-tools-test AlmaLinux:9 | All versions | 12.1.5-1.el9_2.1.alma |
open-vm-tools Red Hat:enterprise_linux:7::client | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-desktop Red Hat:enterprise_linux:7::client | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-devel Red Hat:enterprise_linux:7::client | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-test Red Hat:enterprise_linux:7::client | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-test Red Hat:enterprise_linux:7::computenode | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools Red Hat:enterprise_linux:7::server | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-desktop Red Hat:enterprise_linux:7::server | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-devel Red Hat:enterprise_linux:7::server | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-test Red Hat:enterprise_linux:7::server | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools Red Hat:enterprise_linux:7::workstation | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-desktop Red Hat:enterprise_linux:7::workstation | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-devel Red Hat:enterprise_linux:7::workstation | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools-test Red Hat:enterprise_linux:7::workstation | All versions | 0:11.0.5-3.el7_9.6 |
open-vm-tools Red Hat:enterprise_linux:8::appstream | All versions | 0:12.1.5-2.el8_8 |
open-vm-tools-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:12.1.5-2.el8_8 |
open-vm-tools-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:12.1.5-2.el8_8 |
open-vm-tools-desktop Red Hat:enterprise_linux:8::appstream | All versions | 0:12.1.5-2.el8_8 |
open-vm-tools-desktop-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:12.1.5-2.el8_8 |
open-vm-tools-salt-minion Red Hat:enterprise_linux:8::appstream | All versions | 0:12.1.5-2.el8_8 |
open-vm-tools-sdmp Red Hat:enterprise_linux:8::appstream | All versions | 0:12.1.5-2.el8_8 |
open-vm-tools-sdmp-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:12.1.5-2.el8_8 |
open-vm-tools-test-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:12.1.5-2.el8_8 |
open-vm-tools Red Hat:enterprise_linux:9::appstream | All versions | 0:12.1.5-1.el9_2.1 |
open-vm-tools-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:12.1.5-1.el9_2.1 |
open-vm-tools-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:12.1.5-1.el9_2.1 |
open-vm-tools-desktop Red Hat:enterprise_linux:9::appstream | All versions | 0:12.1.5-1.el9_2.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Vmware Tools.
How do I fix CVE-2023-20867?
Apply the vendor's patch. US federal agencies must fix it by 14 Jul 2023.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-20867 being exploited?
Yes. Attackers have exploited CVE-2023-20867 in the wild since at least 23 Jun 2023.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALSA-2023:3948, ALSA-2023:3949, DEBIAN-CVE-2023-20867, DLA-3531-1, GHSA-qm59-f7vh-3m2p, RHSA-2023:3944 and 14 more.