CVE-2023-37952 in mabl Plugin
Summary
by MITRE • 07/12/2023
A cross-site request forgery (CSRF) vulnerability in Jenkins mabl Plugin 0.0.46 and earlier allows attackers to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 08/02/2023
The CVE-2023-37952 vulnerability represents a critical cross-site request forgery flaw within the mabl Plugin for Jenkins, specifically affecting versions 0.0.46 and earlier. This vulnerability resides in the plugin's improper handling of authentication tokens and session management mechanisms, creating a pathway for malicious actors to exploit the system's trust relationships. The issue stems from the plugin's failure to implement adequate CSRF protection measures, allowing unauthorized requests to be executed on behalf of authenticated users without proper verification of the request source.
The technical implementation of this vulnerability occurs through the manipulation of the plugin's API endpoints that handle credential management and external URL connections. Attackers can craft malicious requests that leverage legitimate user sessions to establish connections to arbitrary URLs using stored credential IDs that have been obtained through alternative means. The flaw exploits the absence of anti-CSRF tokens in the plugin's web interfaces, enabling attackers to perform actions that should require explicit user consent. This vulnerability specifically targets the credential storage and retrieval mechanisms within Jenkins, where the mabl plugin maintains references to external service credentials that are subsequently used for automated testing operations.
The operational impact of CVE-2023-37952 extends beyond simple credential theft, as it enables attackers to establish persistent access to external systems that are configured to be accessible through the compromised Jenkins instance. When exploited, this vulnerability allows threat actors to perform unauthorized operations against connected services using the victim's privileges, potentially leading to data exfiltration, service disruption, or lateral movement within the network. The vulnerability is particularly dangerous because it can be exploited without requiring direct access to the Jenkins server itself, making it accessible through web-based attack vectors that can be delivered via phishing campaigns or compromised websites.
Organizations should immediately implement mitigations including upgrading to the patched version of the mabl plugin, enabling proper CSRF protection mechanisms, and implementing additional access controls around credential management interfaces. The vulnerability aligns with CWE-352, which specifically addresses cross-site request forgery weaknesses in web applications, and maps to ATT&CK technique T1566.001 for credential access through social engineering. Security teams should also consider implementing web application firewalls, monitoring for suspicious API calls, and conducting regular security assessments of Jenkins plugins to identify similar vulnerabilities. Additionally, organizations should enforce principle of least privilege for Jenkins users and implement multi-factor authentication to reduce the impact of credential compromise.