CVE-2023-46667 : Vulnerability Insights and Analysis
Discover the impact of CVE-2023-46667 on Fleet Server. Learn about the vulnerability, affected systems, exploitation mechanism, and mitigation steps to secure your systems.
An issue was discovered in Fleet Server where Agent enrolment tokens are being inserted into the log file, potentially exposing sensitive information.
Understanding CVE-2023-46667
This CVE relates to a vulnerability in Fleet Server versions >= 8.10.0 and < 8.10.3 that allows for the insertion of sensitive information into log files.
What is CVE-2023-46667?
The vulnerability in Fleet Server exposes Agent enrolment tokens in plain text in the log file. This could lead to unauthorized enrollment of agents and potential access to other sensitive information stored in agent policies.
The Impact of CVE-2023-46667
The impact of this vulnerability is significant as threat actors could enroll agents to clusters and send arbitrary events to Elasticsearch, compromising the integrity and confidentiality of the system.
Technical Details of CVE-2023-46667
This section discusses the specific details of the CVE including the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability allows Agent enrolment tokens to be logged in plain text, potentially enabling unauthorized access to agent policies and other sensitive data stored in Elasticsearch and third-party services.
Affected Systems and Versions
Fleet Server versions >= 8.10.0 and < 8.10.3 are affected by this vulnerability.
Exploitation Mechanism
Threat actors can exploit this vulnerability by enrolling agents into agent policies and using the exposed tokens to retrieve confidential information or send unauthorized events to Elasticsearch.
Mitigation and Prevention
Here we discuss the steps that organizations can take to mitigate the risks associated with CVE-2023-46667.
Immediate Steps to Take
Immediately update Fleet Server to version 8.10.3 or higher to patch the vulnerability. Additionally, monitor log files for any unauthorized access attempts.
Long-Term Security Practices
Implement secure logging practices to prevent the exposure of sensitive information in log files. Conduct regular security audits to identify and address potential vulnerabilities.
Patching and Updates
Stay informed about security updates from Elastic and apply patches promptly to protect against known vulnerabilities.