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.
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 4.2 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
- EPSS
- 0.24% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-552
- Affected
- tyan/s5552\/s5552wgm4nr-ex firmware · tyan/s5552\/s5552wgm4nr firmware · tyan/s5552\/s5552gm4nr firmware · tyan/s5552\/s5552gm2nr firmware
- Source
- prodsec@nozominetworks.com
References
- https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2023-2538/Third Party Advisory
- https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2023-2538/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.