rapid7/metasploit-framework

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modules/auxiliary/admin/mssql/mssql_escalate_dbowner_sqli.rb

Summary

Maintainability
B
6 hrs
Test Coverage

Method run has 46 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def run
    # Get the database user name
    print_status("Grabbing the database user name from ...")
    db_user = get_username
    if db_user.nil?
Severity: Minor
Found in modules/auxiliary/admin/mssql/mssql_escalate_dbowner_sqli.rb - About 1 hr to fix

    Method run has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
    Open

      def run
        # Get the database user name
        print_status("Grabbing the database user name from ...")
        db_user = get_username
        if db_user.nil?
    Severity: Minor
    Found in modules/auxiliary/admin/mssql/mssql_escalate_dbowner_sqli.rb - About 1 hr 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 check_db_owner has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
    Open

      def check_db_owner(trust_db_list)
        # Check if the user has the db_owner role is any databases
        trust_db_list.each do |db|
          # Setup query
          clue_start = Rex::Text.rand_text_alpha(8 + rand(4))
    Severity: Minor
    Found in modules/auxiliary/admin/mssql/mssql_escalate_dbowner_sqli.rb - About 35 mins 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

    Avoid too many return statements within this method.
    Open

          return
    Severity: Major
    Found in modules/auxiliary/admin/mssql/mssql_escalate_dbowner_sqli.rb - About 30 mins to fix

      Similar blocks of code found in 5 locations. Consider refactoring.
      Open

        def check_sysadmin
          # Setup query to check for sysadmin
          clue_start = Rex::Text.rand_text_alpha(8 + rand(4))
          clue_end = Rex::Text.rand_text_alpha(8 + rand(4))
          sql = "(select '#{clue_start}'+cast((select is_srvrolemember('sysadmin'))as varchar)+'#{clue_end}')"
      modules/auxiliary/admin/mssql/mssql_enum_domain_accounts_sqli.rb on lines 129..142
      modules/auxiliary/admin/mssql/mssql_escalate_dbowner_sqli.rb on lines 89..105
      modules/auxiliary/admin/mssql/mssql_escalate_execute_as_sqli.rb on lines 85..101
      modules/auxiliary/admin/mssql/mssql_escalate_execute_as_sqli.rb on lines 104..120

      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 49.

      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 5 locations. Consider refactoring.
      Open

        def get_username
          # Setup query to check for database username
          clue_start = Rex::Text.rand_text_alpha(8 + rand(4))
          clue_end = Rex::Text.rand_text_alpha(8 + rand(4))
          sql = "(select '#{clue_start}'+SYSTEM_USER+'#{clue_end}')"
      modules/auxiliary/admin/mssql/mssql_enum_domain_accounts_sqli.rb on lines 129..142
      modules/auxiliary/admin/mssql/mssql_escalate_dbowner_sqli.rb on lines 108..124
      modules/auxiliary/admin/mssql/mssql_escalate_execute_as_sqli.rb on lines 85..101
      modules/auxiliary/admin/mssql/mssql_escalate_execute_as_sqli.rb on lines 104..120

      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 49.

      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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