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modules/exploits/linux/smtp/exim4_dovecot_exec.rb

Summary

Maintainability
D
1 day
Test Coverage

Method exploit has a Cognitive Complexity of 29 (exceeds 5 allowed). Consider refactoring.
Open

  def exploit

    @pl = generate_payload_exe
    @elf_sent = false
Severity: Minor
Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb - About 4 hrs to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Method exploit has 90 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def exploit

    @pl = generate_payload_exe
    @elf_sent = false
Severity: Major
Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb - About 3 hrs to fix

    Method initialize has 49 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Exim and Dovecot Insecure Configuration Command Injection',
      'Description'    => %q{
        This module exploits a command injection vulnerability against Dovecot with
    Severity: Minor
    Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb - About 1 hr to fix

      Similar blocks of code found in 2 locations. Consider refactoring.
      Open

            register_options(
      [
        OptString.new('EHLO', [ true, 'TO address of the e-mail', 'debian.localdomain']),
        OptString.new('MAILTO', [ true, 'TO address of the e-mail', 'root@debian.localdomain']),
        OptAddress.new('DOWNHOST', [ false, 'An alternative host to request the MIPS payload from' ]),
      Severity: Minor
      Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb and 1 other location - About 50 mins to fix
      modules/exploits/linux/http/netgear_dgn2200b_pppoe_exec.rb on lines 64..72

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 42.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 8 locations. Consider refactoring.
      Open

        def wait_linux_payload
    print_status("#{rhost}:#{rport} - Waiting for the victim to request the ELF payload...")

    waited = 0
    while (not @elf_sent)
      Severity: Major
      Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb and 7 other locations - About 45 mins to fix
      modules/exploits/linux/http/dlink_diagnostic_exec_noauth.rb on lines 210..218
      modules/exploits/linux/http/dlink_dir615_up_exec.rb on lines 245..253
      modules/exploits/linux/http/linksys_e1500_apply_exec.rb on lines 238..246
      modules/exploits/linux/http/linksys_wrt54gl_apply_exec.rb on lines 405..413
      modules/exploits/linux/http/netgear_dgn1000b_setup_exec.rb on lines 242..250
      modules/exploits/linux/http/netgear_dgn2200b_pppoe_exec.rb on lines 347..355
      modules/exploits/multi/sap/sap_mgmt_con_osexec_payload.rb on lines 310..318

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 41.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 4 locations. Consider refactoring.
      Open

          if not resp or resp[0,3] != '250'
      fail_with(Failure::Unknown, "#{rhost}:#{rport} - #{msg}")
    else
      print_status("#{rhost}:#{rport} - #{msg}")
    end
      Severity: Minor
      Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb and 3 other locations - About 30 mins to fix
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 180..184
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 189..193
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 201..205

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 32.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 4 locations. Consider refactoring.
      Open

          if not resp or resp[0,3] != '354'
      fail_with(Failure::Unknown, "#{rhost}:#{rport} - #{msg}")
    else
      print_status("#{rhost}:#{rport} - #{msg}")
    end
      Severity: Minor
      Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb and 3 other locations - About 30 mins to fix
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 171..175
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 180..184
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 201..205

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 32.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 4 locations. Consider refactoring.
      Open

          if not resp or resp[0,3] != '250'
      fail_with(Failure::Unknown, "#{rhost}:#{rport} - #{msg}")
    else
      print_status("#{rhost}:#{rport} - #{msg}")
    end
      Severity: Minor
      Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb and 3 other locations - About 30 mins to fix
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 171..175
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 180..184
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 189..193

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 32.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 4 locations. Consider refactoring.
      Open

          if not resp or resp[0,3] != '250'
      fail_with(Failure::Unknown, "#{rhost}:#{rport} - #{msg}")
    else
      print_status("#{rhost}:#{rport} - #{msg}")
    end
      Severity: Minor
      Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb and 3 other locations - About 30 mins to fix
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 171..175
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 189..193
      modules/exploits/linux/smtp/exim4_dovecot_exec.rb on lines 201..205

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 32.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Identical blocks of code found in 11 locations. Consider refactoring.
      Open

        def on_request_uri(cli, request)
    if (not @pl)
      print_error("#{rhost}:#{rport} - A request came in, but the payload wasn't ready yet!")
      return
    end
      Severity: Major
      Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb and 10 other locations - About 20 mins to fix
      modules/exploits/linux/http/dlink_diagnostic_exec_noauth.rb on lines 198..206
      modules/exploits/linux/http/dlink_dir615_up_exec.rb on lines 233..241
      modules/exploits/linux/http/linksys_e1500_apply_exec.rb on lines 226..234
      modules/exploits/linux/http/linksys_wrt54gl_apply_exec.rb on lines 393..401
      modules/exploits/linux/http/netgear_dgn1000b_setup_exec.rb on lines 230..238
      modules/exploits/linux/http/netgear_dgn2200b_pppoe_exec.rb on lines 335..343
      modules/exploits/multi/http/bassmaster_js_injection.rb on lines 87..94
      modules/exploits/multi/http/rails_dynamic_render_code_exec.rb on lines 95..102
      modules/exploits/multi/http/trendmicro_threat_discovery_admin_sys_time_cmdi.rb on lines 137..144
      modules/exploits/multi/sap/sap_mgmt_con_osexec_payload.rb on lines 298..306

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 28.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 6 locations. Consider refactoring.
      Open

          if (datastore['DOWNHOST'])
      print_status("#{rhost}:#{rport} - Giving #{datastore['HTTP_DELAY']} seconds to the target to download the payload")
      select(nil, nil, nil, datastore['HTTP_DELAY'])
    else
      wait_linux_payload
      Severity: Minor
      Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb and 5 other locations - About 15 mins to fix
      modules/exploits/linux/http/dlink_diagnostic_exec_noauth.rb on lines 167..171
      modules/exploits/linux/http/dlink_dir615_up_exec.rb on lines 197..201
      modules/exploits/linux/http/linksys_wrt160nv2_apply_exec.rb on lines 169..173
      modules/exploits/linux/http/netgear_dgn2200b_pppoe_exec.rb on lines 315..319
      modules/exploits/multi/sap/sap_mgmt_con_osexec_payload.rb on lines 263..267

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 26.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Identical blocks of code found in 4 locations. Consider refactoring.
      Open

            if (datastore['SRVHOST'] == "0.0.0.0" or datastore['SRVHOST'] == "::")
        srv_host = datastore['URIHOST'] || Rex::Socket.source_address(rhost)
      else
        srv_host = datastore['SRVHOST']
      end
      Severity: Minor
      Found in modules/exploits/linux/smtp/exim4_dovecot_exec.rb and 3 other locations - About 15 mins to fix
      modules/exploits/multi/http/bassmaster_js_injection.rb on lines 138..142
      modules/exploits/multi/http/rails_dynamic_render_code_exec.rb on lines 159..163
      modules/exploits/multi/http/trendmicro_threat_discovery_admin_sys_time_cmdi.rb on lines 160..164

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 25.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

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