// For flags

CVE-2023-20867

VMware Tools Authentication Bypass Vulnerability

Severity Score

3.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

Yes
*KEV

Decision

-
*SSVC
Descriptions

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.

Un host ESXi totalmente comprometido puede obligar a VMware Tools a no poder autenticar las operaciones de host a invitado, lo que afecta la confidencialidad y la integridad de la máquina virtual invitada.

A flaw was found in the open-vm-tools package. An attacker with root access privileges over ESXi may be able to cause an authentication bypass in the vgauth module. This may lead to compromised confidentiality and integrity.

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.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-11-01 CVE Reserved
  • 2023-06-13 CVE Published
  • 2023-06-23 Exploited in Wild
  • 2023-07-14 KEV Due Date
  • 2024-08-02 CVE Updated
  • 2024-11-10 EPSS Updated
  • ---------- First Exploit
CWE
  • CWE-287: Improper Authentication
CAPEC
  • CAPEC-115: Authentication Bypass
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Vmware
Search vendor "Vmware"
Tools
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>= 10.3.0 < 12.2.5
Search vendor "Vmware" for product "Tools" and version " >= 10.3.0 < 12.2.5"
-
Affected
Debian
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Debian Linux
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10.0
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-
Affected
Debian
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Debian Linux
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11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected
Debian
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Debian Linux
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12.0
Search vendor "Debian" for product "Debian Linux" and version "12.0"
-
Affected
Fedoraproject
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Fedora
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37
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-
Affected
Fedoraproject
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Fedora
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38
Search vendor "Fedoraproject" for product "Fedora" and version "38"
-
Affected
Fedoraproject
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Fedora
Search vendor "Fedoraproject" for product "Fedora"
39
Search vendor "Fedoraproject" for product "Fedora" and version "39"
-
Affected