CVE-2019-19108 — An authentication weakness in the SNMP service in B&R Automation Runtime version

An authentication weakness in the SNMP service in B&R Automation Runtime versions 2.96, 3.00, 3.01, 3.06 to 3.10, 4.00 to 4.63, 4.72 and above allows unauthenticated users to modify the configuration of B&R products via SNMP.

01What is this vulnerability?

An authentication weakness in the SNMP service in B&R Automation Runtime versions 2.96, 3.00, 3.01, 3.06 to 3.10, 4.00 to 4.63, 4.72 and above allows unauthenticated users to modify the configuration of B&R products via SNMP.

02Affected products

Vendor	Product	Versions
B&R	Automation Runtime	2 <= 2.96, 3 <= 3.10, 4 <= 4.72

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: 2020-04-20T21:48:29.000Z
• Last modified: 2024-08-05T02:09:39.340Z

09References

• www.br-automation.com — https://www.br-automation.com/en/downloads/012020-automation-runtime-snmp-authen…
• www.us-cert.gov — https://www.us-cert.gov/ics/advisories/icsa-20-051-01