Vulnerability in Tyan S5552 Bmc
CVE-2023-2538
A CWE-552 "Files or Directories Accessible to External Parties” in the web interface of the Tyan S5552 BMC version 3.00 allows an unauthenticated remote attacker to retrieve the private key of the TLS certificate in use by the BMC via forced browsing. This can then be abused to perform Man-in-the-Middle (MitM) attacks against victims that access the web interface through HTTPS.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (14.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Tyan S5552 Bmc — versions 3.00
- Tyan S5552\/s5552gm2nr
- Tyan S5552\/s5552gm2nr Firmware — versions 3.0.0
- Tyan S5552\/s5552gm4nr
- Tyan S5552\/s5552gm4nr Firmware — versions 3.0.0
- Tyan S5552\/s5552wgm4nr
- Tyan S5552\/s5552wgm4nr-Ex
- Tyan S5552\/s5552wgm4nr-Ex Firmware — versions 3.0.0
- Tyan S5552\/s5552wgm4nr Firmware — versions 3.0.0
Weakness classification (CWE)
References
- www.nozominetworks.com/labs/vulnerability-advisories-cve-2023-2538/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-2538?
- CVE-2023-2538 is a medium-severity vulnerability in Tyan S5552 Bmc, classified under Files or Directories Accessible to External Parties. CVSS score: 5.8/10. Published 2023-07-05.
- How severe is CVE-2023-2538?
- Medium severity. CVSS v3 base score is 5.8 out of 10.