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.
EPSS: 0.002 (15.6th percentile) — read the EPSS interpretation.
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.
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
- prodsec@nozominetworks.com (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.