CVE-2019-1003026 Explained : Impact and Mitigation
Learn about CVE-2019-1003026, a server-side request forgery vulnerability in Jenkins Mattermost Notification Plugin 2.6.2 and earlier. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
The Jenkins Mattermost Notification Plugin version 2.6.2 and earlier is vulnerable to a server-side request forgery vulnerability, allowing attackers to establish a connection to a Mattermost server and send messages.
Understanding CVE-2019-1003026
This CVE involves a security vulnerability in the Jenkins Mattermost Notification Plugin that could be exploited by attackers with specific permissions.
What is CVE-2019-1003026?
A server-side request forgery vulnerability in the Jenkins Mattermost Notification Plugin 2.6.2 and earlier allows attackers with Overall/Read permission to make Jenkins connect to a specified Mattermost server and room to send messages.
The Impact of CVE-2019-1003026
- Attackers can exploit this vulnerability to establish connections to unauthorized Mattermost servers and rooms through Jenkins.
- This could lead to unauthorized message sending and potential data leakage.
Technical Details of CVE-2019-1003026
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability exists in the MattermostNotifier.java file of the Jenkins Mattermost Notification Plugin, enabling attackers to manipulate Jenkins connections to unauthorized Mattermost servers and rooms.
Affected Systems and Versions
- Product: Jenkins Mattermost Notification Plugin
- Vendor: Jenkins project
- Versions Affected: 2.6.2 and earlier
Exploitation Mechanism
Attackers with Overall/Read permission can exploit this vulnerability to force Jenkins to connect to a specified Mattermost server and room, allowing them to send messages.
Mitigation and Prevention
Protecting systems from CVE-2019-1003026 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the Jenkins Mattermost Notification Plugin to a non-vulnerable version.
- Restrict Overall/Read permissions to prevent unauthorized access.
Long-Term Security Practices
- Regularly monitor and audit Jenkins plugin permissions.
- Educate users on secure plugin configurations and permissions.
Patching and Updates
- Apply patches and updates provided by Jenkins project to address the vulnerability and enhance security measures.