CVE-2019-11025 : What You Need to Know

An XSS vulnerability exists in the View poller cache of Cacti versions prior to 1.2.3. The vulnerability is triggered when the clearFilter() function in utilities.php fails to properly escape the SNMP community string, potentially leading to cross-site scripting.

Understanding CVE-2019-11025

This CVE involves a cross-site scripting vulnerability in Cacti versions before 1.2.3.

What is CVE-2019-11025?

This CVE identifies an XSS vulnerability in Cacti's View poller cache, where inadequate escaping of the SNMP community string in the clearFilter() function can allow for cross-site scripting attacks.

The Impact of CVE-2019-11025

The vulnerability could be exploited by attackers to execute malicious scripts in the context of an unsuspecting user's browser, potentially leading to account hijacking, data theft, or other harmful activities.

Technical Details of CVE-2019-11025

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

Vulnerability Description

The XSS vulnerability in Cacti versions prior to 1.2.3 arises from the lack of proper escaping of the SNMP community string in the clearFilter() function within utilities.php.

Affected Systems and Versions

Affected: Cacti versions before 1.2.3
Not affected: Cacti version 1.2.3 and newer

Exploitation Mechanism

The vulnerability is exploited by injecting malicious scripts into the SNMP community string, which, when displayed without proper escaping, can execute arbitrary code in the user's browser.

Mitigation and Prevention

Protecting systems from CVE-2019-11025 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade Cacti to version 1.2.3 or newer to mitigate the vulnerability.
Implement input validation and output encoding to prevent XSS attacks.
Regularly monitor and audit the application for security vulnerabilities.

Long-Term Security Practices

Conduct regular security training for developers to raise awareness of secure coding practices.
Employ a web application firewall (WAF) to filter and block malicious traffic.
Stay informed about security updates and patches for all software components.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and protect the system from exploitation.