CVE-2026-67970 in cFS
Summary
by MITRE • 08/04/2026
Incorrect access control in the DS_SetDestPathCmd() component of NASA cFS v7.0.1 allows attackers to access sensitive components via a path traversal.
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Analysis
by VulDB Data Team • 08/04/2026
The vulnerability resides within the DS_SetDestPathCmd() function of NASA's Core Flight System version 7.0.1, which governs data storage operations for spacecraft missions. This component controls how destination paths are configured for file storage operations, making it a critical element in the system's data management infrastructure. The flaw manifests as an improper access control mechanism that fails to validate user inputs properly, creating a path traversal vulnerability that can be exploited by unauthorized parties.
The technical implementation of this vulnerability stems from inadequate input sanitization within the DS_SetDestPathCmd() function. When processing commands to set destination paths for data storage, the system does not adequately filter or validate the path parameters provided by callers. This allows attackers to manipulate path specifications using directory traversal sequences such as "../" or similar constructs that can navigate beyond intended directories. The vulnerability follows established patterns identified in CWE-22 Path Traversal and CWE-73 Path Traversal, where insufficient input validation enables attackers to access files or directories outside the intended scope.
Operational impact of this vulnerability extends significantly within aerospace environments where data integrity and security are paramount. Attackers could potentially access sensitive mission data, configuration files, or system logs that should remain restricted to authorized personnel only. In spacecraft applications, this could lead to exposure of critical operational parameters, telemetry data, or even compromise the overall mission by enabling unauthorized modifications to storage configurations. The implications are particularly severe given that cFS is designed for use in space missions where system reliability and security directly impact mission success and crew safety.
The vulnerability aligns with ATT&CK technique T1078 Valid Accounts, as exploitation may require legitimate access to command interfaces but could also enable privilege escalation through path traversal attacks. Additionally, it relates to T1566 Phishing and T1210 Exploitation of Remote Services when attackers leverage this weakness to gain unauthorized access to restricted system components. The attack surface is particularly concerning in mission-critical environments where spacecraft systems operate with minimal human intervention and rely heavily on automated processes for data management.
Mitigation strategies should focus on implementing robust input validation mechanisms within the DS_SetDestPathCmd() function, including strict path normalization and absolute path enforcement. Organizations should implement proper access control lists that restrict path modification capabilities to authorized personnel only, while also employing defensive programming practices such as whitelisting acceptable path patterns. Regular security assessments and code reviews specifically targeting input validation controls are essential to prevent similar vulnerabilities from emerging in future versions of the cFS framework. Additionally, system monitoring should be enhanced to detect anomalous path specification changes that could indicate exploitation attempts.