CVE-2023-43320
An issue in Proxmox Server Solutions GmbH Proxmox VE v.5.4 thru v.8.0, Proxmox Backup Server v.1.1 thru v.3.0, and Proxmox Mail Gateway v.7.1 thru v.8.0 allows a remote authenticated attacker to escalate privileges via bypassing the two-factor…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue in Proxmox Server Solutions GmbH Proxmox VE v.5.4 thru v.8.0, Proxmox Backup Server v.1.1 thru v.3.0, and Proxmox Mail Gateway v.7.1 thru v.8.0 allows a remote authenticated attacker to escalate privileges via bypassing the two-factor authentication component.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.99% probability · 61th percentile
- CISA KEV
- Not listed
- Affected
- proxmox/backup server · proxmox/proxmox mail gateway · proxmox/virtual environment
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/176967/Proxmox-VE-7.4-1-TOTP-Brute-Force.html
- https://bugzilla.proxmox.com/show_bug.cgi?id=4579Issue Tracking, Vendor Advisory
- https://bugzilla.proxmox.com/show_bug.cgi?id=4584Issue Tracking, Vendor Advisory
- https://github.com/proxmox/proxmox-rs/commit/50b793db8d3421bbfe2bce060a486263f18a90cbPatch
- http://packetstormsecurity.com/files/176967/Proxmox-VE-7.4-1-TOTP-Brute-Force.html
- https://bugzilla.proxmox.com/show_bug.cgi?id=4579Issue Tracking, Vendor Advisory
- https://bugzilla.proxmox.com/show_bug.cgi?id=4584Issue Tracking, Vendor Advisory
- https://github.com/proxmox/proxmox-rs/commit/50b793db8d3421bbfe2bce060a486263f18a90cbPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.