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CVE-2025-28382: Directory Traversal Vulnerability in OpenC3 COSMOS

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Overview

A high-severity vulnerability has been identified in OpenC3 COSMOS 6.0.0, potentially allowing attackers to execute a directory traversal. This vulnerability, tracked as CVE-2025-28382, poses a significant risk to any organization utilizing the affected software as it can lead to system compromise or data leakage. Immediate action is required to mitigate the risk.

Vulnerability Summary

CVE ID: CVE-2025-28382
Severity: High (7.5)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System Compromise or Data Leakage

Affected Products

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Product | Affected Versions

OpenC3 COSMOS | 6.0.0

How the Exploit Works

The vulnerability resides in the openc3-api/tables endpoint of OpenC3 COSMOS 6.0.0. This vulnerability allows an attacker to manipulate the API endpoint with directory traversal sequences, ultimately enabling them to access unauthorized files or directories. An attacker can exploit this to gain access to sensitive information or execute arbitrary code, potentially leading to a full system compromise.

Conceptual Example Code

Below is a conceptual example of how this vulnerability might be exploited. This example uses a malicious HTTP POST request to the vulnerable endpoint, injecting directory traversal sequences into the request.

POST /openc3-api/tables/../../../etc/passwd HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "..." }

Mitigation Guidance

Users are advised to apply the latest vendor patches to address this vulnerability. In case patches are not immediately available, organizations can use a web application firewall (WAF) or intrusion detection system (IDS) to detect and block malicious traffic as a temporary mitigation measure. It’s crucial to stay updated with the latest security advisories from the vendor and apply patches as soon as they are released.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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