CVE-2021-22743 LOW

Published: 2021-05-26 | Last Modified: 2024-11-21 | Status: Modified

Description

Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex TCM 4351B installed on Tricon V11.3.x systems that could cause module reset when TCM receives malformed TriStation packets while the write-protect keyswitch is in the program position.

Additional Descriptions (1)

Existe una vulnerabilidad de comprobación inadecuada de condiciones inusuales o excepcionales en el Triconex TCM 4351B instalado en sistemas Tricon versiones V11.3.x que podría causar el reinicio del módulo cuando el TCM recibe paquetes TriStation malformados mientras el interruptor de llave de protección contra escritura está en la posición de programa

CVSS Metrics

Base Score: 3.9 (LOW)

CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector	PHYSICAL
Attack Complexity	LOW
Privileges Required	HIGH
User Interaction	NONE
Scope	UNCHANGED
Confidentiality Impact	NONE
Integrity Impact	NONE
Availability Impact	HIGH

Source: [email protected]

Type: Primary

Exploitability Score: 0.3

Impact Score: 3.6

Base Score: 2.1 (LOW)

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

Access Vector	LOCAL
Access Complexity	LOW
Authentication	NONE
Confidentiality Impact	NONE
Integrity Impact	NONE
Availability Impact	PARTIAL

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 2.9

Weaknesses

Source	Type	Description
[email protected]	Secondary	en CWE-754

Affected Products

Vendor	Product	Version	Update	Type
schneider-electric	triconex_model_3009_mp_firmware	*	<built-in method update of dict object at 0x7e6106847340>	Operating System
schneider-electric	tcm_4351b_firmware	*	<built-in method update of dict object at 0x7e60bacd6c40>	Operating System
schneider-electric	tcm_4351b_firmware	11.7.0	<built-in method update of dict object at 0x7e60bacd50c0>	Operating System

Affected Configurations

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:triconex_model_3009_mp_firmware::::::::`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:triconex_model_3009_mp:-:::::::*`

Operator: OR

Vulnerable	CPE
Yes	`cpe:2.3:o:schneider-electric:tcm_4351b_firmware::::::::`
Yes	`cpe:2.3:o:schneider-electric:tcm_4351b_firmware:11.7.0:::::::*`

Operator: OR

Vulnerable	CPE
No	`cpe:2.3:h:schneider-electric:tcm_4351b:-:::::::*`

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-03
Source: [email protected]

Vendor Advisory
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-03
Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory