CVE-2019-5636

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Summary

CVECVE-2019-5636
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-11-21 20:15:00 UTC
Updated2020-02-04 23:15:00 UTC
DescriptionWhen a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).

Risk And Classification

Problem Types: CWE-404

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Beckhoff Twincat 2.0 build2304 All All
Application Beckhoff Twincat 3.1 build4024.0 All All
Application Beckhoff Twincat 2.0 build2304 All All
Application Beckhoff Twincat 3.1 build4024.0 All All

References

ReferenceSourceLinkTags
download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-0... CONFIRM download.beckhoff.com Vendor Advisory
TwinCAT DoS Vulnerability Disclosure (CVE 2019-5637 & 2019-5636) MISC blog.rapid7.com Exploit, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: This issue was discovered, and reported to Rapid7, by Andreas Galauner at Rapid7. It is being disclosed in accordance with Rapid7's vulnerability disclosure policy (https://www.rapid7.com/disclosure/).

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