CVE-2022-35271 Explained : Impact and Mitigation

A denial of service vulnerability exists in the web_server hashFirst functionality of Robustel R1510 versions 3.1.16 and 3.3.0. This can be triggered by a specially-crafted network request, leading to denial of service in the

/action/import_cert_file/

API.

Understanding CVE-2022-35271

This article provides insights into the impact, technical details, and mitigation strategies related to CVE-2022-35271.

What is CVE-2022-35271?

CVE-2022-35271 is a denial of service vulnerability found in the Robustel R1510 series, specifically affecting versions 3.1.16 and 3.3.0. An attacker can exploit this vulnerability using a sequence of requests to disrupt the service.

The Impact of CVE-2022-35271

The impact of this vulnerability is significant as it can lead to a denial of service condition, impacting the availability of the web_server hashFirst functionality in Robustel R1510 devices.

Technical Details of CVE-2022-35271

Let's delve into the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises due to a flaw in the web_server hashFirst functionality of Robustel R1510 versions 3.1.16 and 3.3.0, triggered by a specially-crafted network request.

Affected Systems and Versions

Robustel R1510 devices running versions 3.1.16 and 3.3.0 are affected by this denial of service vulnerability.

Exploitation Mechanism

An attacker can exploit CVE-2022-35271 by sending a sequence of requests to the

/action/import_cert_file/

API, leading to a denial of service condition.

Mitigation and Prevention

Explore the immediate steps and long-term security practices to safeguard against this vulnerability.

Immediate Steps to Take

Immediate steps include applying vendor patches, monitoring network traffic for suspicious activity, and restricting access to critical APIs.

Long-Term Security Practices

Implement security best practices such as regular system updates, network segmentation, and conducting security assessments to enhance overall cybersecurity.

Patching and Updates

Regularly check for security updates from Robustel and apply patches promptly to mitigate the risk of exploitation.