CVE-2022-34205 in Jianliao Notification Plugin
Summary
by MITRE • 06/23/2022
A cross-site request forgery (CSRF) vulnerability in Jenkins Jianliao Notification Plugin 1.1 and earlier allows attackers to send HTTP POST requests to an attacker-specified URL.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 07/14/2022
The cross-site request forgery vulnerability identified as CVE-2022-34205 resides within the Jenkins Jianliao Notification Plugin version 1.1 and earlier, representing a critical security flaw that undermines the integrity of web-based communication systems. This vulnerability specifically enables malicious actors to exploit the plugin's insufficient validation mechanisms to manipulate HTTP POST requests, potentially compromising the security posture of Jenkins environments that utilize this notification service. The Jianliao Notification Plugin serves as an integration component for Jenkins continuous integration and delivery pipelines, facilitating automated notifications to Jianliao chat platforms, which are widely used in enterprise environments for team collaboration and project management.
The technical flaw manifests through the plugin's failure to implement proper CSRF token validation within its HTTP POST request handling mechanisms. Attackers can leverage this weakness by crafting malicious web pages or exploiting existing user sessions to execute unauthorized actions against the Jenkins server. The vulnerability allows adversaries to send HTTP POST requests to arbitrary URLs specified by the attacker, effectively bypassing the intended access controls and authentication mechanisms. This flaw falls under the Common Weakness Enumeration category CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities, and aligns with the ATT&CK framework's technique T1566.002 for Phishing with Malicious Attachment, as attackers can exploit this vulnerability through crafted web content to manipulate Jenkins server operations.
The operational impact of this vulnerability extends beyond simple data manipulation, as it can enable attackers to perform unauthorized administrative actions within Jenkins environments. Given that Jenkins servers often house sensitive build configurations, source code repositories, and deployment credentials, successful exploitation could lead to complete system compromise. The vulnerability particularly affects organizations using Jenkins for continuous integration and deployment workflows, where automated notifications are critical for monitoring and alerting. Attackers could potentially trigger unauthorized builds, modify pipeline configurations, or even execute malicious code through the compromised notification system, creating a significant attack surface for lateral movement and persistent access within enterprise networks. The implications are especially severe in environments where Jenkins serves as a central hub for software development and deployment operations.
Mitigation strategies for this vulnerability should prioritize immediate plugin updates to versions that address the CSRF implementation flaw, as recommended by Jenkins security advisories. Organizations must implement comprehensive CSRF protection measures including the deployment of anti-CSRF tokens for all state-changing operations, proper session management protocols, and input validation controls. Network-level protections such as web application firewalls and strict access controls should be implemented to monitor and restrict unauthorized HTTP POST requests. Additionally, security teams should conduct thorough assessments of all Jenkins plugins to identify similar vulnerabilities, as this flaw demonstrates the importance of validating all external integrations within CI/CD pipelines. The remediation process should include comprehensive testing of updated configurations to ensure that legitimate notification functionality remains intact while eliminating the attack vectors that enable CSRF exploitation. Regular security auditing of Jenkins environments and adherence to security best practices for continuous integration systems are essential for preventing similar vulnerabilities from emerging in other components of the software delivery pipeline.