CVE-2023-20900
What it is
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 .
At a glance
- Exploitability
- Can be exploited from the same network segment with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 1.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.5% in the next 30 days (EPSS).
- Severity: 7.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.5% · EPSS, next 30 days
- Weakness
- CWE-294
- Record status
- Modified
Affected
- VMware Tools < 12.3.0
- VMware Tools < 10.3.26
- VMware Open Vm Tools < 12.3.0
- Fedoraproject Fedora 37
- Fedoraproject Fedora 38
- Fedoraproject Fedora 39
- Debian Linux 10.0
- Debian Linux 11.0
Attack profile CVSS 3.1 · 7.1
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-20900.md and follow it. Check whether this project is affected by CVE-2023-20900. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.openwall.com/lists/oss-security/2023/10/27/1
- https://www.vmware.com/security/advisories/VMSA-2023-0019.html
- http://www.openwall.com/lists/oss-security/2023/10/27/1
- https://www.vmware.com/security/advisories/VMSA-2023-0019.html
References
- http://www.openwall.com/lists/oss-security/2023/08/31/1
- http://www.openwall.com/lists/oss-security/2023/10/27/1
- https://lists.debian.org/debian-lts-announce/2023/10/msg00000.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/
- https://security.netapp.com/advisory/ntap-20231013-0002/
- https://www.debian.org/security/2023/dsa-5493
- https://www.vmware.com/security/advisories/VMSA-2023-0019.html
- http://www.openwall.com/lists/oss-security/2023/08/31/1
- http://www.openwall.com/lists/oss-security/2023/10/27/1
- https://lists.debian.org/debian-lts-announce/2023/10/msg00000.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/NVKQ6Y2JFJRWPFOZUOTFO3H27BK5GGOG/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TJNJMD67QIT6LXLKWSHFM47DCLRSMT6W/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ZJM6HDRQYS74JA7YNKQBFH2XSZ52HEWH/
- https://security.netapp.com/advisory/ntap-20231013-0002/
- https://www.debian.org/security/2023/dsa-5493
- https://www.vmware.com/security/advisories/VMSA-2023-0019.html