CVE-2021-34570: Phoenix Contact: DoS for PLCnext Control devices in versions prior to 2021.0.5 LTS
First published: Tue Aug 03 2021(Updated: )
Multiple Phoenix Contact PLCnext control devices in versions prior to 2021.0.5 LTS are prone to a DoS attack through special crafted JSON requests.
Credit: info@cert.vde.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Phoenix Contact PLCnext Technology Starterkit Firmware | <2021.0.5 | |
| Phoenix Contact PLCnext Technology Starterkit Firmware | ||
| phoenixcontact axc f 2152 starterkit firmware | <2021.0.5 | |
| phoenixcontact axc f 2152 starterkit | ||
| Phoenix Contact RFC 4072S | <2021.0.5 | |
| Phoenix Contact RFC 4072S | ||
| Phoenix Contact AXC F 3152 Firmware | <2021.0.5 | |
| Phoenix Contact AXC F 3152 Firmware | ||
| Phoenix Contact Axc F 1152 | <2021.0.5 | |
| Phoenix Contact Axc F 1152 | ||
| Phoenix Contact Axioline F AXL F 2152 Firmware | <2021.0.5 | |
| Phoenix Contact Axioline F AXL F 2152 Firmware |
Remedy
Phoenix Contact recommends affected users to upgrade to the current Firmware 2021.0.5 LTS or higher which fixes this vulnerability.
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Reference Links
Frequently Asked Questions
What is CVE-2021-34570?
CVE-2021-34570 is a vulnerability that affects multiple Phoenix Contact PLCnext control devices in versions prior to 2021.0.5 LTS.
How severe is CVE-2021-34570?
CVE-2021-34570 has a severity rating of 7.5 (High).
Which software versions are affected by CVE-2021-34570?
Phoenix Contact PLCnext control devices in versions prior to 2021.0.5 LTS are affected by CVE-2021-34570.
How can CVE-2021-34570 be exploited?
CVE-2021-34570 can be exploited through specially crafted JSON requests.
Is there a fix for CVE-2021-34570?
Updating the affected Phoenix Contact PLCnext control devices to version 2021.0.5 LTS will fix CVE-2021-34570.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/references
- agent/severity
- agent/author
- agent/weakness
- agent/remedy
- agent/last-modified-date
- agent/event
- agent/description
- agent/first-publish-date
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/phoenixcontact
- canonical/phoenix contact plcnext technology starterkit firmware
- canonical/phoenixcontact axc f 2152 starterkit firmware
- canonical/phoenixcontact axc f 2152 starterkit
- canonical/phoenix contact rfc 4072s
- canonical/phoenix contact axc f 3152 firmware
- canonical/phoenix contact axc f 1152
- canonical/phoenix contact axioline f axl f 2152 firmware