CVE-2021-22859 : Exploit Details and Defense Strategies

A critical SQL Injection vulnerability, CVE-2021-22859, affects the e-document system developed by Excellent Infotek Corporation. The vulnerability in the users' data querying function allows remote attackers to execute arbitrary commands without privilege.

Understanding CVE-2021-22859

This section will delve into the details of the CVE-2021-22859 vulnerability, its impact, technical description, affected systems, exploitation mechanism, and mitigation steps.

What is CVE-2021-22859?

The SQL Injection vulnerability in the EIC e-document system enables attackers to inject malicious SQL syntax via special characters, leading to the execution of arbitrary commands remotely.

The Impact of CVE-2021-22859

With a CVSS base score of 9.8 (Critical), this vulnerability poses a severe threat. Attackers can exploit it to compromise data confidentiality, integrity, and availability without needing user interaction or privileges.

Technical Details of CVE-2021-22859

Let's explore the technical aspects of CVE-2021-22859, including its vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from the lack of special character filtering in the data querying function, allowing attackers to inject and execute SQL commands remotely.

Affected Systems and Versions

The vulnerable version is 3.0.2 of the EIC e-document system, exposing all instances to potential exploitation.

Exploitation Mechanism

Remote attackers can exploit this flaw by injecting malicious SQL syntax through the users' data querying function, bypassing normal security controls.

Mitigation and Prevention

Discover the essential steps to mitigate and prevent exploitation of CVE-2021-22859, safeguarding your systems and data.

Immediate Steps to Take

Users should update the EIC e-document system to version 3.0.4 immediately to patch the SQL Injection vulnerability and prevent potential attacks.

Long-Term Security Practices

Implement secure coding practices, input validation mechanisms, and regular security assessments to enhance resilience against SQL Injection and other vulnerabilities.

Patching and Updates

Stay informed about security updates from Excellent Infotek Corporation and apply patches promptly to fortify system defenses against emerging threats.