Issues in UrlSigner.php (master) - Issues in master - anthonysan95/url-signer - Measure and Improve Code Quality continuously with Scrutinizer

Issues (3)

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Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

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src/UrlSigner.php (2 issues)

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Bug 2

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<?php

namespace AnthonySan95\UrlSigner;

use AnthonySan95\UrlSigner\Contracts\UrlSigner as UrlSignerContract;
use AnthonySan95\UrlSigner\Url\Url;
use Illuminate\Support\Arr;
use Illuminate\Support\Carbon;
use Illuminate\Support\InteractsWithTime;


class UrlSigner implements UrlSignerContract {
    use InteractsWithTime;

    /**
     * The encryption key resolver callable.
     *
     * @var callable
     */
    protected $keyResolver;

    /**
     * Create a signed URL.
     *
     * @param  string $url
     * @param  array $parameters
     * @param  \DateTimeInterface|\DateInterval|int $expiration
     * @return string
     * @throws \Throwable
     */
    public function sign($url, $parameters = [], $expiration = null): string {
        $parameters = Arr::wrap($parameters);

        if ($expiration) {
            $parameters = $parameters + ['expires' => $this->availableAt($expiration)];

        }

        ksort($parameters);

        $url = new Url($url, $parameters);

        $key = call_user_func($this->keyResolver);

        $url = new Url($url, $parameters + [
                'signature' => hash_hmac('sha256', $url, $key),
            ]);

        return $url;
    }

    /**
     * Create a temporary signed URL.
     *
     * @param  string $url
     * @param  \DateTimeInterface|\DateInterval|int $expiration
     * @param  array $parameters
     * @return string
     * @throws \Throwable
     */
    public function temporarySign($url, $expiration, $parameters = []): string {
        return $this->sign($url, $parameters, $expiration);
    }

    /**
     * Validate a signed url.
     *
     * @param string $url
     *
     * @return bool
     * @throws \Throwable
     */
    public function validate($url) {
        $url = new Url($url);

        $original = rtrim($url->getWithoutQuery() . '?' . Arr::query(
                Arr::except($url->query(), 'signature')

            ), '?');

        $expires = $url->query('expires');

        $signature = hash_hmac('sha256', $original, call_user_func($this->keyResolver));

        return hash_equals($signature, $url->query('signature', '')) &&
            !($expires && Carbon::now()->getTimestamp() > $expires);
    }


    /**
     * Set the encryption key resolver.
     *
     * @param  callable $keyResolver
     * @return $this
     */
    public function setKeyResolver(callable $keyResolver) {
        $this->keyResolver = $keyResolver;

        return $this;
    }
}


1			<?php
2
3			namespace AnthonySan95\UrlSigner;
4
5			use AnthonySan95\UrlSigner\Contracts\UrlSigner as UrlSignerContract;
6			use AnthonySan95\UrlSigner\Url\Url;
7			use Illuminate\Support\Arr;
8			use Illuminate\Support\Carbon;
9			use Illuminate\Support\InteractsWithTime;
10
11
12			class UrlSigner implements UrlSignerContract {
13			use InteractsWithTime;
14
15			/**
16			* The encryption key resolver callable.
17			*
18			* @var callable
19			*/
20			protected $keyResolver;
21
22			/**
23			* Create a signed URL.
24			*
25			* @param string $url
26			* @param array $parameters
27			* @param \DateTimeInterface\|\DateInterval\|int $expiration
28			* @return string
29			* @throws \Throwable
30			*/
31			public function sign($url, $parameters = [], $expiration = null): string {
32			$parameters = Arr::wrap($parameters);
33
34			if ($expiration) {
35			$parameters = $parameters + ['expires' => $this->availableAt($expiration)];
			0 ignored issues – show Bug introduced 2019-02-14 11:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like `$expiration` defined by parameter `$expiration` on line 31 can also be of type `object<DateInterval>` or `object<DateTimeInterface>`; however, `Illuminate\Support\Inter...WithTime::availableAt()` does only seem to accept `integer`, maybe add an additional type check? This check looks at variables that have been passed in as parameters and are passed out again to other methods. If the outgoing method call has stricter type requirements than the method itself, an issue is raised. An additional type check may prevent trouble. Loading history...
36			}
37
38			ksort($parameters);
39
40			$url = new Url($url, $parameters);
41
42			$key = call_user_func($this->keyResolver);
43
44			$url = new Url($url, $parameters + [
45			'signature' => hash_hmac('sha256', $url, $key),
46			]);
47
48			return $url;
49			}
50
51			/**
52			* Create a temporary signed URL.
53			*
54			* @param string $url
55			* @param \DateTimeInterface\|\DateInterval\|int $expiration
56			* @param array $parameters
57			* @return string
58			* @throws \Throwable
59			*/
60			public function temporarySign($url, $expiration, $parameters = []): string {
61			return $this->sign($url, $parameters, $expiration);
62			}
63
64			/**
65			* Validate a signed url.
66			*
67			* @param string $url
68			*
69			* @return bool
70			* @throws \Throwable
71			*/
72			public function validate($url) {
73			$url = new Url($url);
74
75			$original = rtrim($url->getWithoutQuery() . '?' . Arr::query(
76			Arr::except($url->query(), 'signature')
			0 ignored issues – show Bug introduced 2019-02-14 11:32 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like `$url->query()` targeting `AnthonySan95\UrlSigner\Url\Url::query()` can also be of type `null` or `string`; however, `Illuminate\Support\Arr::except()` does only seem to accept `array`, maybe add an additional type check? This check looks at variables that are passed out again to other methods. If the outgoing method call has stricter type requirements than the method itself, an issue is raised. An additional type check may prevent trouble. Loading history...
77			), '?');
78
79			$expires = $url->query('expires');
80
81			$signature = hash_hmac('sha256', $original, call_user_func($this->keyResolver));
82
83			return hash_equals($signature, $url->query('signature', '')) &&
84			!($expires && Carbon::now()->getTimestamp() > $expires);
85			}
86
87
88			/**
89			* Set the encryption key resolver.
90			*
91			* @param callable $keyResolver
92			* @return $this
93			*/
94			public function setKeyResolver(callable $keyResolver) {
95			$this->keyResolver = $keyResolver;
96
97			return $this;
98			}
99			}
100

anthonysan95 / url-signer

Issues (3)

Security Analysis no request data

src/UrlSigner.php (2 issues)

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