CVE-2023-34058: - SAML Token Signature Bypass in open-vm-tools
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 .
Other sources
VMware Tools contains a SAML token signature bypass vulnerability. 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.
Reference:
https://www.vmware.com/security/advisories/VMSA-2023-0024
— Red Hat
Affected Software
Remediation
Patch Available
Event History
Parent advisories
This vulnerability appears in the following advisories.
Frequently Asked Questions
What is CVE-2023-34058?
CVE-2023-34058 is a vulnerability in open-vm-tools that allows a malicious actor with Guest Operation Privileges to elevate their privileges in a target virtual machine.
How severe is CVE-2023-34058?
CVE-2023-34058 has a severity rating of 7.5 (high).
Which software versions are affected by CVE-2023-34058?
The affected software versions of open-vm-tools are 2:11.3.0-2ubuntu0~ubuntu20.04.7, 2:12.1.5-3~ubuntu0.22.04.4, 2:12.1.5-3ubuntu0.23.04.3, 2:12.3.0-1ubuntu0.1, 2:11.2.5-2+deb11u3, 2:12.2.0-1+deb12u2, 2:12.3.5-1.
How can I fix CVE-2023-34058?
To fix CVE-2023-34058, update to the recommended version of open-vm-tools: 2:11.3.0-2ubuntu0~ubuntu20.04.7, 2:12.1.5-3~ubuntu0.22.04.4, 2:12.1.5-3ubuntu0.23.04.3, 2:12.3.0-1ubuntu0.1, 2:11.2.5-2+deb11u3, 2:12.2.0-1+deb12u2, 2:12.3.5-1.
Where can I find more information about CVE-2023-34058?
You can find more information about CVE-2023-34058 at the following references: [VMware Security Advisory](https://www.vmware.com/security/advisories/VMSA-2023-0024.html), [OpenWall mailing list](http://www.openwall.com/lists/oss-security/2023/10/27/1), [Debian Security Advisory](https://www.debian.org/security/2023/dsa-5543).