CVE-2018-3830 : What You Need to Know

Kibana versions 5.3.0 to 6.4.1 had a cross-site scripting (XSS) vulnerability that could allow attackers to access sensitive information or perform malicious actions.

Understanding CVE-2018-3830

Between versions 5.3.0 and 6.4.1, a vulnerability in Kibana allowed for cross-site scripting attacks, impacting the source field formatter.

What is CVE-2018-3830?

This CVE refers to a security flaw in Kibana versions 5.3.0 to 6.4.1 that enabled cross-site scripting attacks, potentially leading to unauthorized access to sensitive data or unauthorized actions.

The Impact of CVE-2018-3830

The vulnerability in Kibana could be exploited by malicious actors to retrieve confidential information from other users or perform harmful actions on their behalf.

Technical Details of CVE-2018-3830

Kibana's vulnerability to cross-site scripting attacks poses a significant risk to data security.

Vulnerability Description

The XSS vulnerability in Kibana versions 5.3.0 to 6.4.1 allowed attackers to execute malicious scripts in the context of other users' sessions, compromising data integrity.

Affected Systems and Versions

Product: Kibana
Vendor: Elastic
Versions Affected: after 5.3.0, before 5.6.12 and 6.4.1

Exploitation Mechanism

Attackers could exploit the vulnerability by injecting malicious scripts via the source field formatter, enabling them to access sensitive information or perform unauthorized actions.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2018-3830.

Immediate Steps to Take

Update Kibana to a patched version that addresses the XSS vulnerability.
Monitor and restrict user input to prevent script injection.
Educate users on safe browsing practices to mitigate the risk of XSS attacks.

Long-Term Security Practices

Regularly update and patch software to protect against known vulnerabilities.
Implement security measures such as input validation and output encoding to prevent XSS attacks.

Patching and Updates

Apply security patches provided by Elastic to fix the XSS vulnerability in Kibana.