Risk Letters

Exploited vulnerability

CVE-2023-20867

TLP:CLEAR

VMware Tools Authentication Bypass Vulnerability

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.

Facts

  • Vendor: VMware
  • Product: Tools
  • CVSS: 3.9
  • EPSS (probability of exploitation within 30 days): 13.6 %
  • On CISA's Known Exploited Vulnerabilities list since: 23 June 2023
  • First known exploitation: 23 June 2023
  • CISA's deadline for US federal agencies: 14 July 2023
  • Weakness: CWE-287
  • First seen by Risk Letters: 23 June 2023

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD