CVE-2022-41253 in CONS3RT Plugin
Summary
by MITRE • 09/21/2022
A cross-site request forgery (CSRF) vulnerability in Jenkins CONS3RT Plugin 1.0.0 and earlier allows attackers to connect to an attacker-specified HTTP server using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.
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Analysis
by VulDB Data Team • 05/28/2025
This cross-site request forgery vulnerability exists within the Jenkins CONS3RT Plugin version 1.0.0 and earlier, representing a critical security flaw that enables unauthorized attackers to exploit the plugin's functionality for credential harvesting. The vulnerability stems from insufficient validation of request origins and lack of proper anti-CSRF token implementation within the plugin's web interface. Attackers can craft malicious requests that, when executed by authenticated users, establish connections to arbitrary HTTP servers using credentials stored within Jenkins. This flaw specifically targets the plugin's credential handling mechanisms, allowing unauthorized access to stored credential IDs that are typically protected by Jenkins' security model.
The technical exploitation of this CSRF vulnerability follows a well-established attack pattern where malicious actors construct specially crafted web requests that leverage the victim's authenticated session to perform actions without their knowledge or consent. The vulnerability operates at the application layer and specifically affects Jenkins installations that utilize the CONS3RT Plugin for cloud infrastructure management and deployment automation. When an authenticated user visits a malicious website or clicks on a compromised link, the CSRF attack can automatically submit requests to the CONS3RT plugin endpoints, enabling attackers to establish connections to attacker-controlled servers using stolen credential identifiers. This represents a significant bypass of Jenkins' built-in credential protection mechanisms.
The operational impact of this vulnerability extends beyond simple credential theft, as it can enable attackers to gain unauthorized access to cloud resources, infrastructure management systems, and automated deployment environments that rely on the CONS3RT plugin for operations. Attackers can leverage the stolen credentials to perform actions such as launching virtual machines, accessing cloud storage, modifying infrastructure configurations, or executing unauthorized deployments. The vulnerability essentially allows attackers to escalate their privileges from a simple web-based attack to full access of cloud environments managed through Jenkins, potentially leading to data breaches, service disruption, and unauthorized resource consumption. This attack vector is particularly dangerous because it can be executed through social engineering techniques without requiring direct system access or advanced exploitation capabilities.
Mitigation strategies for this CSRF vulnerability should prioritize immediate plugin updates to versions that include proper anti-CSRF token implementation and request origin validation. Organizations should implement additional security controls such as restricting access to Jenkins to trusted networks and implementing multi-factor authentication for administrative access. The Jenkins security model should be reviewed to ensure that credential storage and retrieval mechanisms are properly protected against cross-site scripting and cross-site request forgery attacks. Security teams should also monitor Jenkins logs for unauthorized credential usage patterns and implement network-level controls to restrict outbound connections from Jenkins to untrusted domains. This vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery, and represents a typical ATT&CK technique for credential access through web application exploitation. Organizations should conduct comprehensive security assessments of their Jenkins installations to identify and remediate similar vulnerabilities across other plugins and components that may be susceptible to CSRF attacks.