Read the docs
TI-2023-16924 Aliases CVE-2023-34058GHSA-h5hf-5wcj-6hmf

Improper signature verification in VMware Tools

Priority LOW 36CWE-347Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-347.

Summary

VMware Tools contains a SAML token signature bypass vulnerability. A malicious actor that has been granted Guest Operation Privileges https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html  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 https://vdc-download.vmware.com/vmwb-repository/dcr-public/d1902b0e-d479-46bf-8ac9-cee0e31e8ec0/07ce8dbd-db48-4261-9b8f-c6d3ad8ba472/vim.vm.guest.AliasManager.html .

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00813 57th percentileScored 2026-11-07
Fix Fixed Red Hat: 10 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—VMware Tools12.x.x; 11.x.x; 10.3.x—No fix listedCNA
—open-vm-tools11.0.0 – 12.3.0—No fix listedCNA
  • VMware Tools Vendor— Affected 12.x.x; 11.x.x; 10.3.x Fixed in — No fix listed CNA
  • open-vm-tools Vendor— Affected 11.0.0 – 12.3.0 Fixed in — No fix listed CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:a:vmware:open_vm_tools:*:*:*:*:*:*:*:*11.0.0 – 12.3.0VulnerableVMware
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*12.0VulnerableDebian
cpe:2.3:a:vmware:tools:*:*:*:*:*:*:*:*10.3.0 to before 12.3.5VulnerableVMware
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*37VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*38VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*39VulnerableFedoraproject
  • cpe:2.3:a:vmware:open_vm_tools:*:*:*:*:*:*:*:* Versions 11.0.0 – 12.3.0 Vulnerable ·VMware
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Debian
  • cpe:2.3:a:vmware:tools:*:*:*:*:*:*:*:* Versions 10.3.0 to before 12.3.5 Vulnerable ·VMware
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject

Remediation

Red Hat 10 advisories

  • RHSA-2023:7263 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) open-vm-tools-11.3.5-1.el8_6.5, open-vm-tools-desktop-11.3.5-1.el8_6.5, open-vm-tools-sdmp-11.3.5-1.el8_6.5
  • RHSA-2023:7264 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) open-vm-tools-12.1.5-2.el8_8.4, open-vm-tools-desktop-12.1.5-2.el8_8.4, open-vm-tools-salt-minion-12.1.5-2.el8_8.4 +1
  • RHSA-2023:7262 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) open-vm-tools-11.2.0-2.el8_4.4, open-vm-tools-desktop-11.2.0-2.el8_4.4, open-vm-tools-sdmp-11.2.0-2.el8_4.4
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) open-vm-tools-11.2.0-2.el8_4.4, open-vm-tools-desktop-11.2.0-2.el8_4.4, open-vm-tools-sdmp-11.2.0-2.el8_4.4
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) open-vm-tools-11.2.0-2.el8_4.4, open-vm-tools-desktop-11.2.0-2.el8_4.4, open-vm-tools-sdmp-11.2.0-2.el8_4.4
Show 7 more Red Hat advisories
  • RHSA-2023:7260 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux AppStream E4S (v. 8.1) open-vm-tools-10.3.10-3.el8_1.5, open-vm-tools-desktop-10.3.10-3.el8_1.5
  • RHSA-2023:7276 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) open-vm-tools-12.1.5-1.el9_2.4, open-vm-tools-desktop-12.1.5-1.el9_2.4, open-vm-tools-salt-minion-12.1.5-1.el9_2.4 +2
  • RHSA-2023:7277 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux AppStream (v. 9) open-vm-tools-12.2.5-3.el9_3.2, open-vm-tools-desktop-12.2.5-3.el9_3.2, open-vm-tools-salt-minion-12.2.5-3.el9_3.2 +2
  • RHSA-2023:7279 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux Client (v. 7) open-vm-tools-11.0.5-3.el7_9.9, open-vm-tools-desktop-11.0.5-3.el7_9.9
    • Red Hat Enterprise Linux Client Optional (v. 7) open-vm-tools-devel-11.0.5-3.el7_9.9, open-vm-tools-test-11.0.5-3.el7_9.9
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) open-vm-tools-devel-11.0.5-3.el7_9.9, open-vm-tools-test-11.0.5-3.el7_9.9
    • Red Hat Enterprise Linux Server (v. 7) open-vm-tools-11.0.5-3.el7_9.9, open-vm-tools-desktop-11.0.5-3.el7_9.9
    • Red Hat Enterprise Linux Server Optional (v. 7) open-vm-tools-devel-11.0.5-3.el7_9.9, open-vm-tools-test-11.0.5-3.el7_9.9
    • Red Hat Enterprise Linux Workstation (v. 7) open-vm-tools-11.0.5-3.el7_9.9, open-vm-tools-desktop-11.0.5-3.el7_9.9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) open-vm-tools-devel-11.0.5-3.el7_9.9, open-vm-tools-test-11.0.5-3.el7_9.9
  • RHSA-2023:7267 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) open-vm-tools-11.3.5-1.el9_0.5, open-vm-tools-desktop-11.3.5-1.el9_0.5, open-vm-tools-sdmp-11.3.5-1.el9_0.5 +1
  • RHSA-2023:7261 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) open-vm-tools-11.0.0-4.el8_2.4, open-vm-tools-desktop-11.0.0-4.el8_2.4
    • Red Hat Enterprise Linux AppStream E4S (v. 8.2) open-vm-tools-11.0.0-4.el8_2.4, open-vm-tools-desktop-11.0.0-4.el8_2.4
    • Red Hat Enterprise Linux AppStream TUS (v. 8.2) open-vm-tools-11.0.0-4.el8_2.4, open-vm-tools-desktop-11.0.0-4.el8_2.4
  • RHSA-2023:7265 Released 2023-11-15 · Red Hat rating Important
    open-vm-tools security update
    • Red Hat Enterprise Linux AppStream (v. 8) open-vm-tools-12.2.5-3.el8_9.1, open-vm-tools-desktop-12.2.5-3.el8_9.1, open-vm-tools-salt-minion-12.2.5-3.el8_9.1 +1

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2023:7265
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:7277
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2023:7261
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2023:7262
Red Hat Enterprise Linux AppStream E4S (v. 8.1)Fixed RHSA-2023:7260
Red Hat Enterprise Linux AppStream E4S (v. 8.2)Fixed RHSA-2023:7261
Red Hat Enterprise Linux AppStream E4S (v.8.4)Fixed RHSA-2023:7262
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2023:7263
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2023:7264
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:7267
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2023:7276
Red Hat Enterprise Linux AppStream TUS (v. 8.2)Fixed RHSA-2023:7261
Red Hat Enterprise Linux AppStream TUS (v.8.4)Fixed RHSA-2023:7262
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2023:7279
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2023:7279
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2023:7279
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2023:7279
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2023:7279
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2023:7279
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2023:7279

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-34058
  2. 2026-10-03 Alias added: GHSA-h5hf-5wcj-6hmf

References

Patch 1

Advisory 6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences