CVE-2023-20867
LOW severity · CVSS 3.9 · Improper authentication · actively exploited (CISA KEV)
3.9CVSS LOW exploited
Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2023-06-23. US federal agencies must patch by 2023-07-14.
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityHigh
Privileges requiredHigh
User interactionNone
Confidentiality impactLow
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)14%
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Official patch: http://www.openwall.com/lists/oss-security/2023/10/16/11 ↗
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2023/10/16/11Patch
- http://www.openwall.com/lists/oss-security/2023/10/16/2Patch
- https://lists.debian.org/debian-lts-announce/2023/08/msg00020.htmlAdvisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/
- https://security.netapp.com/advisory/ntap-20230725-0001/Advisory
- https://www.debian.org/security/2023/dsa-5493Advisory