CVE-2023-31923 — Suprema BioStar 2 before 2022 Q4, v2

Suprema BioStar 2 before 2022 Q4, v2.9.1 has Insecure Permissions. A vulnerability in the web application allows an authenticated attacker with "User Operator" privileges to create a highly privileged user account. The vulnerability is caused by missing server-side vali

01What is this vulnerability?

Suprema BioStar 2 before 2022 Q4, v2.9.1 has Insecure Permissions. A vulnerability in the web application allows an authenticated attacker with "User Operator" privileges to create a highly privileged user account. The vulnerability is caused by missing server-side validation, which can be exploited to gain full administrator privileges on the system.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-05-22T00:00:00.000Z
• Last modified: 2025-01-21T15:22:20.132Z

09References

• nobugescapes.com — https://nobugescapes.com/blog/creating-a-new-user-with-admin-privilege/