CVE-2022-26781 Explained : Impact and Mitigation

Multiple improper input validation vulnerabilities exist in the libnvram.so nvram_import functionality of InHand Networks InRouter302 V3.5.4, leading to remote code execution. This CVE has a CVSS base score of 9.9, indicating a critical severity.

Understanding CVE-2022-26781

This CVE-2022-26781 pertains to multiple input validation vulnerabilities in InHand Networks InRouter302 V3.5.4, allowing attackers to execute remote code by exploiting certain functionalities.

What is CVE-2022-26781?

The vulnerability revolves around improper input validation in the libnvram.so nvram_import feature and the

httpd

's

user_define_print

function of InRouter302 V3.5.4 by InHand Networks. Attackers can achieve remote code execution by deploying specially-crafted files or sending specific requests.

The Impact of CVE-2022-26781

The impact of CVE-2022-26781 is severe, with a CVSS base score of 9.9 (Critical). The vulnerabilities can be exploited to achieve high confidentiality, integrity, and availability impact with low user interaction and privileges required.

Technical Details of CVE-2022-26781

This section delves into the vulnerability description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability stems from improper input validation in the libnvram.so nvram_import functionality and the

httpd

's

user_define_print

function of InRouter302 V3.5.4. Attackers can trigger remote code execution by manipulating certain variables.

Affected Systems and Versions

InRouter302 V3.5.4 by InHand Networks is affected by these input validation vulnerabilities. Systems with this version are at risk of exploitation.

Exploitation Mechanism

By sending a sequence of requests or leveraging specially-crafted files, attackers can exploit the vulnerabilities to execute remote code on the targeted systems.

Mitigation and Prevention

To mitigate the risks posed by CVE-2022-26781, immediate steps should be taken to enhance security measures and apply necessary patches.

Immediate Steps to Take

It is recommended to apply security patches provided by InHand Networks promptly. Network segmentation, access controls, and monitoring are crucial to detect and prevent unauthorized access.

Long-Term Security Practices

Implementing strong input validation mechanisms, conducting regular security assessments, and staying updated on security best practices are essential for long-term security.

Patching and Updates

Regularly check for security updates and patches released by InHand Networks for InRouter302 V3.5.4 to address the identified vulnerabilities and enhance system security.