Cryptographic issues in VMware Tools and open-vm-tools - CVE-2023-20900
Published: August 31, 2023
Vulnerability identifier: #VU80188
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-20900
CWE-ID: CWE-310
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: VMware, Inc
Affected software:
VMware Tools
open-vm-tools
VMware Tools
open-vm-tools
Detailed vulnerability description
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to improper verification of SAML token signature. A remote attacker can bypass SAML token signature verification and perform man-in-the-middle (MITM) network positioning between vCenter server and the virtual machine.
How to mitigate CVE-2023-20900
Install updates from vendor's website.