VulnerabilityAnalyzed
CVE-2023-20867
VMware Tools Authentication Bypass Vulnerability
KEVLOW 3.9EPSS 13.5%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 14 July 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 3.9 LOWCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- EPSS
- 13.53% probability · 96th percentile
- CISA KEV
- Listed 23 June 2023 · due 14 July 2023
- Weakness
- CWE-287
- Affected
- vmware/tools · debian/debian linux · fedoraproject/fedora
- Source
- security@vmware.com
CISA notes
Apply updates per vendor instructions. https://www.vmware.com/security/advisories/VMSA-2023-0013.html; https://nvd.nist.gov/vuln/detail/CVE-2023-20867
References
- http://www.openwall.com/lists/oss-security/2023/10/16/11Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2023/10/16/2Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2023/08/msg00020.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/Mailing List, Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/Mailing List, Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/Mailing List, Release Notes
- https://security.netapp.com/advisory/ntap-20230725-0001/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5493Mailing List, Third Party Advisory
- https://www.vmware.com/security/advisories/VMSA-2023-0013.htmlPatch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2023/10/16/11Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2023/10/16/2Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2023/08/msg00020.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/Mailing List, Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/Mailing List, Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/Mailing List, Release Notes
- https://security.netapp.com/advisory/ntap-20230725-0001/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5493Mailing List, Third Party Advisory
- https://www.vmware.com/security/advisories/VMSA-2023-0013.htmlPatch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20867US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.