TRAMP Remote Code Execution via Malicious Filenames

Executive Summary

This vulnerability is in Emacs TRAMP, where a local attacker can exploit it by using maliciously crafted filenames. The issue happens because TRAMP combines login arguments without proper sanitization before passing them to a local shell. If exploited, it could allow the attacker to execute arbitrary code on the system.

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Detection Guidance

To detect this vulnerability, check if Emacs TRAMP is installed and review any suspicious filenames or shell commands processed by TRAMP. Look for unusual activity in shell command logs or TRAMP-related processes. No specific commands are provided in the resources, but monitoring TRAMP operations and user input handling may help identify exploitation attempts.

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Impact Analysis

If you use Emacs TRAMP, an attacker with local access could exploit this to run arbitrary code on your system. This could lead to unauthorized access, data theft, or further compromise of your machine.

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Compliance Impact

This vulnerability could potentially affect compliance with GDPR and HIPAA by enabling arbitrary code execution through malicious filenames. GDPR requires protection of personal data integrity and confidentiality, while HIPAA mandates safeguards against unauthorized access or modification of health information. Exploitation could lead to unauthorized data access, modification, or deletion, violating these standards.

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Mitigation Strategies

Update Emacs to the latest version where the TRAMP vulnerability has been patched. Avoid processing untrusted filenames in Emacs TRAMP mode until patched. Review shell command execution in TRAMP configurations to ensure proper sanitization of login arguments.

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