CVE-2020-12521

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.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 6.1 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.1^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 6.5 / Impact : 6.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://cert.vde.com/en-us/advisories/vde-2020-049	Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*

cpe:2.3:h:phoenixcontact:axc_f_1152:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*

cpe:2.3:h:phoenixcontact:axc_f_2152:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*

cpe:2.3:h:phoenixcontact:axc_f_3152:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*

cpe:2.3:h:phoenixcontact:rfc_4072s:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*

cpe:2.3:h:phoenixcontact:axc_f_2152_starterkit:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND

cpe:2.3:o:phoenixcontact:plcnext_firmware:*:*:*:*:long_term_support:*:*:*

cpe:2.3:h:phoenixcontact:plcnext_technology_starterkit:-:*:*:*:*:*:*:*

Information

Published : 2020-12-17 15:15

Updated : 2020-12-21 10:28

NVD link : CVE-2020-12521

Mitre link : CVE-2020-12521

JSON object : View

CWE

CWE-20

Improper Input Validation

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Products Affected

phoenixcontact

axc_f_3152
rfc_4072s
axc_f_1152
axc_f_2152
axc_f_2152_starterkit
plcnext_firmware
plcnext_technology_starterkit

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