CVE-2022-39158 : Security Advisory and Response
Learn about CVE-2022-39158 impacting Siemens RUGGEDCOM devices, allowing remote attackers to trigger a denial of service condition. Read for mitigation steps.
A denial of service vulnerability, identified as CVE-2022-39158, impacts Siemens RUGGEDCOM devices due to improper handling of partial HTTP requests. Remote attackers can exploit this flaw to create a denial of service condition, potentially leading to a sustained outage.
Understanding CVE-2022-39158
This section delves into the details of the CVE-2022-39158 vulnerability.
What is CVE-2022-39158?
Affected Siemens RUGGEDCOM devices are susceptible to slowloris attacks due to improper handling of partial HTTP requests, enabling remote threat actors to orchestrate a denial of service incident.
The Impact of CVE-2022-39158
The vulnerability in Siemens RUGGEDCOM devices can result in a persistent denial of service scenario until the attack concludes, potentially disrupting critical operations.
Technical Details of CVE-2022-39158
This section outlines the technical aspects of CVE-2022-39158.
Vulnerability Description
CVE-2022-39158 involves uncontrolled resource consumption on affected Siemens RUGGEDCOM devices, leading to a medium-severity vulnerability.
Affected Systems and Versions
Various versions of Siemens RUGGEDCOM products, including RUGGEDCOM i800, RUGGEDCOM M2100, and RUGGEDCOM RS900, are impacted by this vulnerability.
Exploitation Mechanism
Remote attackers exploit the vulnerability by sending partial HTTP requests to affected devices, triggering slowloris attacks and causing denial of service conditions.
Mitigation and Prevention
Explore the following steps to mitigate the impact of CVE-2022-39158.
Immediate Steps to Take
Implement network-level protections, restrict access to affected devices, and monitor for suspicious network activity to mitigate immediate risks.
Long-Term Security Practices
Maintain up-to-date security patches, conduct regular security audits, and educate personnel on cybersecurity best practices to enhance long-term resilience.
Patching and Updates
Apply the recommended security patches provided by Siemens to address the vulnerability in affected RUGGEDCOM devices.