CVE-2023-54391
CVE-2023-54391: 1 tracked advisory record across Proxmox. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Proxmox
1 advisory- Advisory severityCritical9.3
Critical [CVE-2023-54391] Proxmox Virtual Environment (VE) 7.0 through 8.0 contains an authentication bypass vulnerability in libpve-access-control before 8.0.4 that allows unauthenticated attackers to authenticate as any existing enabled user without a configured second factor by supplying an arbitrary tfa-challenge value in the API login endpoint
CVE-2023-54391Source published Source updated
Proxmox Virtual Environment (VE) 7.0 through 8.0 contains an authentication bypass vulnerability in libpve-access-control before 8.0.4 that allows unauthenticated attackers to authenticate as any existing enabled user without a configured second factor by supplying an arbitrary tfa-challenge value in the API login endpoint. Attackers can send a POST request to the access ticket API endpoint with any value in the tfa-challenge parameter to completely skip password verification, gaining unauthorized access including to the root@pam account. All affected releases are end of life.
- Affected products in this advisory
- Proxmox Virtual Environment (VE)
- Source-reported affected versions
- before 8.0.4
- through 8.0
- Source-reported fixed versions
- 8.0.4
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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