CVE-2020-12521

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.

State: Published
Severity: 6.5 Medium
Published: Dec 17, 2020
Updated: Sep 17, 2024
Reserved: Apr 30, 2020

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Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CERTVDE

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
AXC F 1152 (1151412)Phoenix Contact	before 2021.0 LTSAffected
AXC F 2152 (2404267)Phoenix Contact	before 2021.0 LTSAffected
AXC F 3152 (1069208)Phoenix Contact	before 2021.0 LTSAffected
RFC 4072S (1051328Phoenix Contact	before 2021.0 LTSAffected
AXC F 2152 Starterkit (1046568)Phoenix Contact	before 2021.0 LTSAffected
PLCnext Technology Starterkit (1188165)Phoenix Contact	before 2021.0 LTSAffected

References

https://cert.vde.com/en-us/advisories/vde-2020-049

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