CVE-2022-26782 : Vulnerability Insights and Analysis

This article discusses a critical vulnerability identified as CVE-2022-26782 in InHand Networks InRouter302 V3.5.4, with potential remote code execution due to improper input validation.

Understanding CVE-2022-26782

CVE-2022-26782 is a severe vulnerability in the libnvram.so nvram_import functionality and

httpd

's

user_define_set_item

function of InHand Networks InRouter302 V3.5.4, allowing remote code execution.

What is CVE-2022-26782?

The CVE-2022-26782 vulnerability involves multiple improper input validation issues in InRouter302 V3.5.4, enabling attackers to execute remote code by exploiting specially-crafted files or controlling certain nvram variables.

The Impact of CVE-2022-26782

With a CVSS base score of 9.9, this critical vulnerability poses a high risk to confidentiality, integrity, and availability. Attackers can exploit it remotely with low privileges required, leading to severe consequences.

Technical Details of CVE-2022-26782

Here are the technical aspects related to CVE-2022-26782:

Vulnerability Description

Multiple improper input validation vulnerabilities exist in the libnvram.so nvram_import functionality and the

httpd

's

user_define_set_item

function, enabling remote code execution.

Affected Systems and Versions

The vulnerability affects InHand Networks InRouter302 V3.5.4 specifically.

Exploitation Mechanism

By sending a sequence of requests or controlling certain nvram variables, attackers can exploit the vulnerabilities to achieve remote code execution.

Mitigation and Prevention

To address CVE-2022-26782, follow these security measures:

Immediate Steps to Take

Update the affected system to a patched version.
Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Regularly update software and firmware to mitigate known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Stay informed about security patches released by InHand Networks and apply them promptly to secure your systems.