CVE-2019-7613 : Security Advisory and Response

Winlogbeat versions before 5.6.16 and 6.6.2 had a vulnerability in their logging mechanism that could be exploited by attackers. This CVE is related to insufficient logging.

Understanding CVE-2019-7613

This CVE affects Logstash, a product by Elastic, specifically versions before 5.6.16 and 6.6.2.

What is CVE-2019-7613?

CVE-2019-7613 is a vulnerability found in Winlogbeat versions before 5.6.16 and 6.6.2. It allows attackers to disrupt the event recording functionality by injecting specific characters into a log entry.

The Impact of CVE-2019-7613

The vulnerability in Winlogbeat could lead to a disruption in event recording, potentially affecting the integrity and reliability of log data.

Technical Details of CVE-2019-7613

This section provides more technical insights into the CVE.

Vulnerability Description

The flaw in Winlogbeat versions before 5.6.16 and 6.6.2 is due to insufficient logging, enabling attackers to interfere with event recording by injecting specific characters into log entries.

Affected Systems and Versions

Product: Logstash
Vendor: Elastic
Vulnerable Versions: Before 5.6.16 and 6.6.2

Exploitation Mechanism

Attackers exploit this vulnerability by injecting specific characters into log entries, disrupting the event recording functionality of Winlogbeat.

Mitigation and Prevention

Protecting systems from CVE-2019-7613 is crucial to maintaining security.

Immediate Steps to Take

Update Winlogbeat to versions 5.6.16 or 6.6.2 or later to mitigate the vulnerability.
Monitor logs for any suspicious activities that may indicate exploitation of this flaw.

Long-Term Security Practices

Regularly update and patch all software components to prevent known vulnerabilities.
Implement proper logging mechanisms and monitoring to detect and respond to security incidents effectively.

Patching and Updates

Apply security patches provided by Elastic promptly to address the vulnerability in Winlogbeat versions before 5.6.16 and 6.6.2.