CVE-2022-32273 — As a result of an observable discrepancy in returned messages, OPSWAT MetaDefend

As a result of an observable discrepancy in returned messages, OPSWAT MetaDefender Core (MDCore) before 5.1.2 could allow an authenticated user to enumerate filenames on the server.

01What is this vulnerability?

As a result of an observable discrepancy in returned messages, OPSWAT MetaDefender Core (MDCore) before 5.1.2 could allow an authenticated user to enumerate filenames on the server.

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: 2022-06-08T15:23:22.000Z
• Last modified: 2024-08-03T07:39:50.835Z

09References

• opswat.com — https://opswat.com
• docs.opswat.com — https://docs.opswat.com/mdcore/release-notes