CVE-2021-22275

Denial of service vulnerability on Automation Runtime webserver

Severity Score

8.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Buffer Overflow vulnerability in B&R Automation Runtime webserver allows an unauthenticated network-based attacker to stop the cyclic program on the device and cause a denial of service.

Una vulnerabilidad de desbordamiento del búfer en el servidor web de B&R Automation Runtime permite a un atacante no autenticado basado en la red detener el programa cíclico en el dispositivo y causar una denegación de servicio

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-05 CVE Reserved
2022-05-13 CVE Published
2023-12-04 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.br-automation.com/downloads_br_productcatalogue/assets/1625405588264-en-original-1.0.pdf	2022-05-25

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Br-automation Search vendor "Br-automation"		Automation Runtime Search vendor "Br-automation" for product "Automation Runtime"				< 4.91 Search vendor "Br-automation" for product "Automation Runtime" and version " < 4.91"		-		Affected