CVE-2021-34570
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Phoenix Contact | AXC F | AXC F 1152 (1151412) < 2021.0.5 LTS | affected |
| Phoenix Contact | AXC F | AXC F 2152 (2404267) < 2021.0.5 LTS | affected |
| Phoenix Contact | AXC F | AXC F 3152 (1069208) < 2021.0.5 LTS | affected |
| Phoenix Contact | AXC F | AXC F 2152 Starterkit (1046568) < 2021.0.5 LTS | affected |
| Phoenix Contact | RFC | RFC 4072S (1051328) < 2021.0.5 LTS | affected |
| Phoenix Contact | PLCnext | PLCnext Technology Starterkit (1188165) < 2021.0.5 LTS | affected |
Weaknesses
- CWE-20: CWE-20 Improper Input Validation
Workarounds
Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note: Measures to protect network-capable devices with Ethernet connection
ADP Enrichment
CVE Program Container
Additional References
References
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