CVE-2021-30173 : Security Advisory and Response

A Local File Inclusion vulnerability in the Quan-Fang-Wei-Tong-Xun system by Jun-He Technology Ltd. allows a remote authenticated attacker to inject an absolute path into the URL parameter, granting them access to arbitrary files.

Understanding CVE-2021-30173

This CVE outlines a critical security flaw in the Quan-Fang-Wei-Tong-Xun communication system, which can be exploited by an attacker to gain unauthorized access to sensitive files.

What is CVE-2021-30173?

The CVE-2021-30173 vulnerability refers to an Absolute Path Traversal weakness in the Quan-Fang-Wei-Tong-Xun system, enabling an attacker to manipulate URLs and retrieve arbitrary files remotely.

The Impact of CVE-2021-30173

With a CVSS base score of 6.5, this vulnerability poses a medium risk, compromising confidentiality by allowing attackers to view sensitive data without proper authorization.

Technical Details of CVE-2021-30173

This section delves deeper into the specific technical aspects of the CVE, shedding light on the vulnerability description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The flaw permits a remote authenticated attacker to insert absolute paths into the URL parameter, leading to unauthorized access to arbitrary files within the system.

Affected Systems and Versions

The Quan-Fang-Wei-Tong-Xun system version 2007.2103 is impacted by this vulnerability, highlighting the importance of updating to version 2007.2104 for mitigation.

Exploitation Mechanism

Attackers with remote network access and low privileges can exploit this vulnerability without user interaction, compromising data confidentiality by accessing files.

Mitigation and Prevention

This section provides insights into mitigating the risks associated with CVE-2021-30173, offering immediate steps, long-term security practices, and the importance of timely patching and updates.

Immediate Steps to Take

To address CVE-2021-30173, users must update the Quan-Fang-Wei-Tong-Xun system to version 2007.2104 immediately to prevent unauthorized access and protect sensitive data.

Long-Term Security Practices

In addition to applying patches promptly, implementing robust access controls, regular security audits, and user awareness training can enhance overall system security and defend against similar vulnerabilities.

Patching and Updates

Regularly check for security updates and patches released by Jun-He Technology Ltd. to ensure the Quan-Fang-Wei-Tong-Xun system remains secured against known vulnerabilities.