CVE-2020-11645 — A denial of service vulnerability in B&R GateManager 4260 and 9250 versions <9

A denial of service vulnerability in B&R GateManager 4260 and 9250 versions <9.0.20262 and GateManager 8250 versions <9.2.620236042 allows authenticated users to limit availability of GateManager instances.

01What is this vulnerability?

A denial of service vulnerability in B&R GateManager 4260 and 9250 versions <9.0.20262 and GateManager 8250 versions <9.2.620236042 allows authenticated users to limit availability of GateManager instances.

02Affected products

Vendor	Product	Versions
B&R	GateManager	4260, 9250, 8250

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: 2020-10-15T14:59:08.500Z
• Last modified: 2024-09-17T01:31:40.263Z

09References

• www.br-automation.com — https://www.br-automation.com/downloads_br_productcatalogue/assets/1600003183751…
• us-cert.cisa.gov — https://us-cert.cisa.gov/ics/advisories/icsa-20-273-03