CVE-2020-12521
6.5
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete reboot.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Phoenix Contact | AXC F 1152 (1151412) | unspecified < 2021.0 LTS | affected |
| Phoenix Contact | AXC F 2152 (2404267) | unspecified < 2021.0 LTS | affected |
| Phoenix Contact | AXC F 3152 (1069208) | unspecified < 2021.0 LTS | affected |
| Phoenix Contact | RFC 4072S (1051328 | unspecified < 2021.0 LTS | affected |
| Phoenix Contact | AXC F 2152 Starterkit (1046568) | unspecified < 2021.0 LTS | affected |
| Phoenix Contact | PLCnext Technology Starterkit (1188165) | unspecified < 2021.0 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 the Phoenix Contact application note.
ADP Enrichment
CVE Program Container
Additional References
References
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