Auth bypass in Nec Baseboard Management Controller
CVE-2020-5633
Multiple NEC products (Express5800/T110j, Express5800/T110j-S, Express5800/T110j (2nd-Gen), Express5800/T110j-S (2nd-Gen), iStorage NS100Ti, and Express5800/GT110j) where Baseboard Management Controller (BMC) firmware Rev1.09 and earlier is applied allows remote attackers to bypass authentication and then obtain/modify BMC setting information, obtain monitoring information, or reboot/shut down the vulnerable product via unspecified vectors.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.032 (87.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000
Affected products
- Nec Baseboard Management Controller
- Nec Express5800\/gt110j
- Nec Express5800\/t110j
- Nec Express5800\/t110j \(2nd-Gen\)
- Nec Express5800\/t110j-S
- Nec Express5800\/t110j-S \(2nd-Gen\)
- Nec Istorage Ns100ti
- Nec Corporation Multiple Products Where Baseboard Management Controller (Bmc) Firmware Rev1.09 And Earlier Is Applied — versions Express5800/T110j, Express5800/T110j-S, Express5800/T110j (2nd-Gen), Express5800/T110j-S (2nd-Gen), iStorage NS100Ti, and Express5800/GT110j
Weakness classification (CWE)
References
- jpn.nec.com/security-info/secinfo/nv21-002.html (Vendor Advisory)
- www.support.nec.co.jp/View.aspx (Vendor Advisory)
- jvn.jp/en/jp/JVN38752718/index.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-5633?
- CVE-2020-5633 is a critical-severity vulnerability in Nec Baseboard Management Controller, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-01-13.
- How severe is CVE-2020-5633?
- Critical severity. CVSS v3 base score is 9.8 out of 10.