Pepperl+Fuchs: Multiple Products - Vulnerability may allow remote attackers to cause a Denial Of Service
Critical vulnerability has been discovered in the utilized component PROFINET IO Device by Hilscher Gesellschaft für Systemautomation mbH. The impact of the vulnerability on the affected device is that it can - no longer perform acyclic requests - may drop all established cyclic connections may - disappear completely from the network. For more information see advisory by Hilscher: https://kb.hilscher.com/display/ISMS/2020-12-03+Denial+of+Service+vulnerability+in+PROFINET+IO+Device Update 20.11.2024: Products have been added
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-20986US | high7.5 | — | ||
A Denial of Service vulnerability was found in Hilscher PROFINET IO Device V3 in versions prior to V3.14.0.7. This may lead to unexpected loss of cyclic communication or interrupti… | ||||
references
External citations — patches, advisories, analysis.
- Pepperl+Fuchs advisory overview at CERT@VDEexternal
- VDE-2021-006: Pepperl+Fuchs: Multiple Products - Vulnerability may allow remote attackers to cause a Denial Of Service - HTMLself
- VDE-2021-006: Pepperl+Fuchs: Multiple Products - Vulnerability may allow remote attackers to cause a Denial Of Service - CSAFself
remediations (1)
- Mitigation
An external protective measure is required. - Minimize network exposure for affected products and ensure that they are not accessible via the Internet. - Isolate affected products from the corporate network. - If remote access is required, use secure methods such as virtual private networks (VPNs).
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