CVE-2020-13564 : Exploit Details and Defense Strategies

A cross-site scripting vulnerability in phpGACL 3.3.7 allows arbitrary JavaScript execution through crafted HTTP requests.

Understanding CVE-2020-13564

This CVE involves a critical cross-site scripting vulnerability in phpGACL 3.3.7, potentially leading to arbitrary code execution.

What is CVE-2020-13564?

The vulnerability exists in the template functionality of phpGACL 3.3.7
An attacker can exploit this by providing a specially crafted URL
Successful exploitation can result in arbitrary JavaScript execution

The Impact of CVE-2020-13564

CVSS Base Score: 9.6 (Critical)
Attack Vector: Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Scope: Changed
User Interaction: Required
Privileges Required: None

Technical Details of CVE-2020-13564

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

phpGACL 3.3.7 is susceptible to a cross-site scripting flaw
The issue arises from improper handling of user-supplied input

Affected Systems and Versions

Affected Version: phpGACL 3.3.7

Exploitation Mechanism

Attack Complexity: Low
User Interaction: Required
The attacker can exploit the vulnerability via a crafted HTTP request

Mitigation and Prevention

Protect your systems from potential exploits and secure your environment.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly
Implement input validation mechanisms to sanitize user inputs
Monitor and filter incoming HTTP requests for malicious patterns

Long-Term Security Practices

Conduct regular security assessments and code reviews
Educate developers on secure coding practices and the risks of cross-site scripting

Patching and Updates

Stay informed about security updates for phpGACL
Regularly check for patches and new releases to address known vulnerabilities