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CVE-2023-20867

3.9 · LOWActively Exploited

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.

Published Jun 13, 2023CWE-287EPSS 13.53%

Overview

CVE-2023-20867 is a low-severity vulnerability. It was published on June 13, 2023 and has a CVSS 3.1 base score of 3.9 (LOW). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 3.9, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2023/10/16/11Refwww.openwall.com/lists/oss-security/2023/10/16/2Reflists.debian.org/debian-lts-announce/2023/08/msg00020.htmlReflists.fedoraproject.org/archives/list/[email protected]/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/Reflists.fedoraproject.org/archives/list/[email protected]/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/Reflists.fedoraproject.org/archives/list/[email protected]/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/Refsecurity.netapp.com/advisory/ntap-20230725-0001/Refwww.debian.org/security/2023/dsa-5493Refwww.vmware.com/security/advisories/VMSA-2023-0013.htmlRefwww.openwall.com/lists/oss-security/2023/10/16/11

How CyberStrike helps

Frequently asked questions

What is CVE-2023-20867?

CVE-2023-20867 is a low-severity vulnerability. It was published on June 13, 2023 and has a CVSS 3.1 base score of 3.9 (LOW). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2023-20867?

This vulnerability has a CVSS 3.1 base score of 3.9, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-20867?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-20867?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-20867 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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