Exploited
low
3.9
CWE
287 119 22
Advisory Published
CVE Published
CVE Published
Updated

CVE-2023-20867: VMware Tools Authentication Bypass Vulnerability

First published: Wed Jun 07 2023(Updated: )

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.

Credit: security@vmware.com security@vmware.com security@vmware.com

Affected SoftwareAffected VersionHow to fix
VMware Tools>=10.3.0<12.2.5
IBM QRadar SIEM<=7.5.0 - 7.5.0 UP6
VMware Tools
redhat/open-vm-tools<12.2.5
12.2.5
ubuntu/open-vm-tools<2:10.2.0-3~ubuntu0.16.04.1+
2:10.2.0-3~ubuntu0.16.04.1+
ubuntu/open-vm-tools<2:12.1.5-3~ubuntu0.22.04.2
2:12.1.5-3~ubuntu0.22.04.2
ubuntu/open-vm-tools<2:12.1.5-3ubuntu0.23.04.1
2:12.1.5-3ubuntu0.23.04.1
ubuntu/open-vm-tools<2:11.0.5-4ubuntu0.18.04.3+
2:11.0.5-4ubuntu0.18.04.3+
ubuntu/open-vm-tools<2:11.3.0-2ubuntu0~ubuntu20.04.5
2:11.3.0-2ubuntu0~ubuntu20.04.5
debian/open-vm-tools<=2:10.3.10-1+deb10u2
2:10.3.10-1+deb10u6
2:11.2.5-2+deb11u3
2:12.2.0-1+deb12u2
2:12.3.5-4
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Debian Debian Linux=12.0
Fedoraproject Fedora=37
Fedoraproject Fedora=38
Fedoraproject Fedora=39

Remedy

http://www.openwall.com/lists/oss-security/2023/10/16/11

Remedy

http://www.openwall.com/lists/oss-security/2023/10/16/2

Remedy

https://www.vmware.com/security/advisories/VMSA-2023-0013.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2023-20867?

    CVE-2023-20867 is a vulnerability in VMware Tools that allows a fully compromised ESXi host to force VMware Tools to fail to authenticate host-to-guest operations, impacting the confidentiality and integrity of the guest virtual machine.

  • Which software is affected by CVE-2023-20867?

    VMware Tools is affected by CVE-2023-20867.

  • What is the severity of CVE-2023-20867?

    CVE-2023-20867 has a severity value of 3.9 (low).

  • How can I fix CVE-2023-20867?

    To fix CVE-2023-20867, update VMware Tools to version 2:10.2.0-3~ubuntu0.16.04.1+ (for Ubuntu), 12.2.5 (for Red Hat), or the recommended versions for other distributions.

  • Where can I find more information about CVE-2023-20867?

    You can find more information about CVE-2023-20867 in the VMware Security Advisory VMSA-2023-0013.

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