MeterSphere Remote Code Execution Scanner

MeterSphere is an open-source, continuous testing platform widely used by developers and QA managers for test plan management, data-driven testing, and test reporting metrics. It is engineered to integrate seamlessly with a variety of development and CI/CD toolchains to enhance productivity in DevOps environments. The platform supports functional UI, performance, and API testing, aiming to optimize testing workflows. The primary users of MeterSphere are software development teams and testing specialists seeking to attain high-quality assurance in their product cycles. Its robust plug-in architecture allows it to be extended and customized for specific workflows and tool integrations, making it adaptable across different industry requirements.

Remote Code Execution (RCE) is a critical vulnerability that allows attackers to run arbitrary code on the targeted server or application. This type of vulnerability can be exploited without authentication, which makes it extremely dangerous due to the potential for gaining unauthorized access to sensitive data and systems. RCE vulnerabilities are typically due to insufficient input validation, allowing carefully crafted data to breach security protocols. Once exploited, attackers can deploy malware, steal data, or use the compromised system for further network intrusions. RCE is particularly concerning in environments with high network privileges, as it grants the attacker the potential to escalate access rights and controls within a network. Security teams prioritize patches for RCE vulnerabilities due to their significant risk and wide attack surface.

The Remote Code Execution vulnerability in MeterSphere arises from the improper handling of user-supplied input in the plugin management functionality. Attackers can exploit this flaw by sending specially crafted requests to specific endpoints like "/plugin/add" and "/plugin/customMethod". The vulnerable parameter involved is typically related to the file or script execution component of the plugin system. Successful exploitation can allow the execution of arbitrary code in the context of an administrative user. Due to the default plugin architecture and accessible endpoints, this vulnerability does not require prior authentication, making it particularly vulnerable to exploitation. Detailed investigation and input validation rules must be implemented to address this vulnerability in the MeterSphere service.

When exploited, this vulnerability potentially leads to complete system compromise, allowing malicious actors to deploy malware, steal sensitive data, or disrupt services. The integrity of other applications and data within the same environment could be compromised, leading to widespread data breaches. Attackers might also exploit the compromised system for further attacks on other network components or to establish persistent backdoor access. The incident response measures would require a comprehensive review of access logs, potential patching or restructuring of application architectures, and reinforcement of input validation measures. Such an exploit could incur significant financial and reputational damage to organizations reliant on MeterSphere for critical testing processes.

REFERENCES

• https://y4er.com/post/metersphere-plugincontroller-pre-auth-rce/
• https://github.com/metersphere/metersphere