CVE-2024-49049 in Visual Studio Code Remote
Summary
by MITRE • 11/12/2024
Visual Studio Code Remote Extension Elevation of Privilege Vulnerability
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Analysis
by VulDB Data Team • 11/19/2024
The CVE-2024-49049 vulnerability represents a critical elevation of privilege flaw within Visual Studio Code's remote extension functionality, specifically affecting the remote development capabilities that allow users to connect to remote hosts for coding activities. This vulnerability exists in the way Visual Studio Code handles privilege escalation when executing remote extensions, creating a potential attack vector where malicious actors could exploit this weakness to gain higher system privileges than intended. The issue is particularly concerning given the widespread adoption of Visual Studio Code as a development environment across enterprise and individual developer workflows, where remote development capabilities are increasingly utilized for distributed team collaboration and cloud-based development environments.
The technical flaw manifests in the improper handling of privilege contexts when remote extensions are executed within the Visual Studio Code environment. When users establish remote connections through the VS Code Remote Development extension, the system should maintain strict privilege boundaries between the local user context and the remote execution environment. However, the vulnerability allows for privilege escalation by exploiting how the remote extension host processes and executes code, potentially enabling attackers to execute commands with elevated privileges on the remote system. This flaw typically involves insufficient validation of execution contexts or improper privilege separation mechanisms that should normally prevent unauthorized privilege escalation between different user contexts or system levels.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it creates opportunities for attackers to establish persistent access, escalate their compromise to full system control, or exfiltrate sensitive data from remote development environments. Attackers could leverage this vulnerability to gain root or administrative privileges on remote servers, potentially compromising entire development infrastructures that rely on VS Code's remote capabilities. The implications are particularly severe in enterprise environments where developers frequently connect to production servers, staging environments, or cloud infrastructure through remote development features, making this vulnerability a significant risk to organizational security posture and data integrity.
Mitigation strategies for CVE-2024-49049 should prioritize immediate patch application from Microsoft, as the vulnerability requires core platform modifications to address the privilege escalation mechanisms. Organizations should implement network segmentation and access controls to limit exposure of development environments to untrusted networks, while also enforcing strict authentication and authorization policies for remote development connections. Security teams should conduct thorough audits of remote development configurations and monitor for suspicious activity in remote extension execution logs, implementing additional monitoring controls for privilege escalation events. This vulnerability aligns with CWE-276, which addresses improper privilege management, and maps to ATT&CK techniques related to privilege escalation and persistence, emphasizing the need for comprehensive security controls beyond just patch management to protect against exploitation of such remote development vulnerabilities.