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rastating/wordpress-exploit-framework

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lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb

Summary

Maintainability
A
35 mins
Test Coverage

Assignment Branch Condition size for run is too high. [28.34/15]
Open

  def run
    return false unless super

    emit_info 'Preparing payload...'
    payload_id = Utility::Text.rand_alpha(10)
Severity: Minor
Found in lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb by rubocop

This cop checks that the ABC size of methods is not higher than the configured maximum. The ABC size is based on assignments, branches (method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric

Method run has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
Open

  def run
    return false unless super

    emit_info 'Preparing payload...'
    payload_id = Utility::Text.rand_alpha(10)
Severity: Minor
Found in lib/wpxf/modules/exploit/shell/symposium_shell_upload.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

Use 2 (not 0) spaces for indenting an expression spanning multiple lines.
Open

    !res.body.include?('error') && !res.body.eql?('0')
Severity: Minor
Found in lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb by rubocop

This cop checks the indentation of the right hand side operand in binary operations that span more than one line.

Example:

# bad
if a +
b
  something
end

# good
if a +
   b
  something
end

Use res.body.length.positive? instead of res.body.length > 0.
Open

    res && res.code == 200 && res.body.length > 0 &&
Severity: Minor
Found in lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb by rubocop

This cop checks for usage of comparison operators (==, >, <) to test numbers as zero, positive, or negative. These can be replaced by their respective predicate methods. The cop can also be configured to do the reverse.

The cop disregards #nonzero? as it its value is truthy or falsey, but not true and false, and thus not always interchangeable with != 0.

The cop ignores comparisons to global variables, since they are often populated with objects which can be compared with integers, but are not themselves Interger polymorphic.

Example: EnforcedStyle: predicate (default)

# bad

foo == 0
0 > foo
bar.baz > 0

# good

foo.zero?
foo.negative?
bar.baz.positive?

Example: EnforcedStyle: comparison

# bad

foo.zero?
foo.negative?
bar.baz.positive?

# good

foo == 0
0 > foo
bar.baz > 0

Use !empty? instead of length > 0.
Open

    res && res.code == 200 && res.body.length > 0 &&
Severity: Minor
Found in lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb by rubocop

This cop checks for numeric comparisons that can be replaced by a predicate method, such as receiver.length == 0, receiver.length > 0, receiver.length != 0, receiver.length < 1 and receiver.size == 0 that can be replaced by receiver.empty? and !receiver.empty.

Example:

# bad
[1, 2, 3].length == 0
0 == "foobar".length
array.length < 1
{a: 1, b: 2}.length != 0
string.length > 0
hash.size > 0

# good
[1, 2, 3].empty?
"foobar".empty?
array.empty?
!{a: 1, b: 2}.empty?
!string.empty?
!hash.empty?

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