CVE-2021-43822 : Vulnerability Insights and Analysis

Jackalope Doctrine-DBAL is an implementation of the PHP Content Repository API (PHPCR) using a relational database to persist data. In affected versions, users can provoke SQL injections by specifying a node name or query. Upgrading to version 1.7.4 or escaping certain characters can resolve the issue.

Understanding CVE-2021-43822

What is CVE-2021-43822?

Jackalope Doctrine-DBAL is vulnerable to SQL injection, allowing attackers to execute malicious SQL commands through crafted node names or queries.

The Impact of CVE-2021-43822

This vulnerability has a high severity level and can lead to SQL injections, potentially compromising confidentiality, integrity, and availability of the system.

Technical Details of CVE-2021-43822

Vulnerability Description

Users can exploit SQL injections by providing malicious input like node names or queries.
Escaping certain characters in the code can mitigate the risk.

Affected Systems and Versions

Product: jackalope-doctrine-dbal
Vendor: jackalope
Versions Affected: < 1.7.4

Exploitation Mechanism

Attack Complexity: HIGH
Attack Vector: NETWORK
Privileges Required: LOW
Scope: CHANGED
User Interaction: NONE

Mitigation and Prevention

Immediate Steps to Take

Upgrade to version 1.7.4 to fix the vulnerability.
Escape characters in

$property

to filter

sv:name

in the affected class.

Long-Term Security Practices

Avoid user input directly in queries to prevent SQL injection.
Validate user input to exclude potentially harmful characters like

;

.

Patching and Updates

Regularly apply security patches and updates to prevent vulnerabilities.