CVE-2022-43765 : What You Need to Know
Learn about CVE-2022-43765, a high severity vulnerability in B&R APROL versions < R 4.2-07 that allows network-based attackers to cause denial-of-service by sending specially crafted data packets.
A denial-of-service vulnerability has been identified in B&R APROL versions < R 4.2-07, potentially allowing a network-based attacker to disrupt the application by sending specially formatted data packages to port 55502/tcp.
Understanding CVE-2022-43765
This CVE record outlines a high severity vulnerability affecting B&R APROL software.
What is CVE-2022-43765?
The vulnerability in B&R APROL versions < R 4.2-07 occurs due to incorrect processing of specially formatted data packages sent to port 55502/tcp, leading to a denial-of-service risk.
The Impact of CVE-2022-43765
With a CVSS base score of 7.5, this vulnerability has a high severity level, posing a significant risk of disruption to the application's availability when exploited by a network-based attacker.
Technical Details of CVE-2022-43765
The following details provide insights into the vulnerability, affected systems, and exploitation mechanism.
Vulnerability Description
The CVE-2022-43765 vulnerability in B&R APROL allows attackers to disrupt the application's availability by sending specifically crafted data packets to port 55502/tcp.
Affected Systems and Versions
The vulnerability impacts B&R APROL versions earlier than R 4.2-07, exposing systems with this software version to the risk of denial-of-service attacks.
Exploitation Mechanism
By exploiting the vulnerability in B&R APROL, attackers can target the software's Tbase server, causing a denial-of-service condition by sending malicious data packages.
Mitigation and Prevention
To address CVE-2022-43765, immediate actions and long-term security practices are crucial for safeguarding systems.
Immediate Steps to Take
Organizations should apply security patches or updates provided by B&R Industrial Automation for B&R APROL versions < R 4.2-07 to mitigate the risk of a denial-of-service attack.
Long-Term Security Practices
Implementing network segmentation, intrusion detection systems, and monitoring network traffic can enhance overall security posture and help detect and prevent similar vulnerabilities.
Patching and Updates
Regularly check for security advisories from the software vendor and apply patches promptly to ensure system resilience against known vulnerabilities.