CVE-2022-0343 in run-dev-server
Summary
by MITRE • 03/29/2022
A local attacker, as a different local user, may be able to send a HTTP request to 127.0.0.1:10000 after the user (typically a developer) manually invoked the ./tools/run-dev-server script. It is recommended to upgrade to any version beyond 24.2
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 04/01/2022
This vulnerability represents a significant local privilege escalation risk within development environments where the run-dev-server script is executed. The flaw occurs when developers invoke the development server script, which inadvertently exposes a service listening on the loopback interface at port 10000. This creates an attack surface that allows local users to send HTTP requests to localhost, potentially enabling them to manipulate or exploit the development server's functionality. The vulnerability is particularly concerning because it leverages the trust relationship between local processes and the loopback interface, where network traffic is typically considered secure and isolated from external threats.
The technical implementation of this vulnerability stems from improper network configuration within the development environment setup. When the ./tools/run-dev-server script executes, it initializes a service that binds to 127.0.0.1:10000 without adequate access controls or authentication mechanisms. This misconfiguration allows any local user to interact with the service through HTTP requests, potentially leading to information disclosure, service manipulation, or further exploitation. The vulnerability is classified under CWE-284 Access Control Issues, specifically addressing insufficient access control for a resource that should be restricted to authorized users only. The flaw demonstrates poor security practices in development tooling where network services are exposed without proper security boundaries or user isolation mechanisms.
The operational impact of this vulnerability extends beyond simple information disclosure, as it creates opportunities for attackers to escalate privileges within the development environment. Local users who can send HTTP requests to the exposed service may be able to exploit application-specific vulnerabilities, manipulate development data, or potentially gain access to sensitive development credentials and configuration files. The attack vector is particularly dangerous in development environments where developers often run applications with elevated privileges or where the development server may have access to database connections, API keys, or other sensitive resources. This vulnerability aligns with ATT&CK technique T1078 Valid Accounts, as it allows attackers to leverage legitimate user accounts to access development services that should remain isolated.
Mitigation strategies should focus on immediate remediation through version upgrades beyond 24.2, which addresses the underlying network exposure issue. Organizations should implement proper network segmentation for development environments, ensuring that development servers do not expose unnecessary services to the local network. Additional controls include implementing proper access controls for the run-dev-server script, requiring explicit user authentication for development services, and configuring firewall rules to restrict access to development ports. Security teams should also establish regular security reviews of development tooling and scripts to identify similar misconfigurations. The vulnerability highlights the importance of following security best practices in development environments where the principle of least privilege should be applied to all services, regardless of their intended audience or perceived security posture.