Auth bypass in Openbmc-Project Openbmc
CVE-2021-39296
In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (87.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
Affected products
- Openbmc-Project Openbmc — versions 2.9.0
Weakness classification (CWE)
References
- github.com/openbmc/openbmc (Third Party Advisory)
- github.com/google/security-research/security/advisories/GHSA-gg9x-v835-m48q (Exploit, Third Party Advisory)
- www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00737.html
Frequently asked questions
- What is CVE-2021-39296?
- CVE-2021-39296 is a critical-severity vulnerability in Openbmc-Project Openbmc, classified under Improper Authentication. CVSS score: 10.0/10. Published 2021-09-09.
- How severe is CVE-2021-39296?
- Critical severity. CVSS v3 base score is 10.0 out of 10.