CVE-2023-20900
open-vm-tools: SAML token signature bypass
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 31, 2023
Updated · October 9, 2026
Description
An improper signature verification flaw was found in open-vm-tools that may lead to a bypass of SAML token signature. A malicious actor that has been granted Guest Operation Privileges in a target virtual machine may be able to elevate their privileges if that target virtual machine has been assigned a more privileged Guest Alias.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.1CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-347 · Improper Verification of Cryptographic Signature