Issues in Decoder.php (master) - Issues in master - AlexMasterov/msgpack.php - Measure and Improve Code Quality continuously with Scrutinizer

Issues (80)

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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.

Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

src/Decoder.php (63 issues)

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<?php
declare(strict_types=1);

namespace MessagePack;

use MessagePack\{
    Exception\InsufficientData,
    Exception\UnknownByteHeader,
    Ext
};
use const MessagePack\ORD;
use function MessagePack\{toDouble, toFloat};
use function sprintf;
use function substr;

final class Decoder
{
    /** @var string */
    private $data = '';

    /** @var int */
    private $offset = 0;

    public function decode(string $data)
    {
        $this->data = $data;
        $this->offset = 0;

        return $this->parse();
    }

    private function parse()
    {
        if (!isset($this->data[$this->offset])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 1);
        }

        $byte = ORD[$this->data[$this->offset++]];

        if ($byte < 0xc0) {
            // positive fixint
            if ($byte < 0x80) {
                return $byte;
            }
            // fixmap
            if ($byte < 0x90) {
                return $this->decodeMap($byte & 0xf);
            }
            // fixarray
            if ($byte < 0xa0) {
                return $this->decodeArray($byte & 0x0f);
            }
            // fixstr
            return $this->decodeStr($byte & 0x1f);
        }
        // negative fixint
        if ($byte > 0xdf) {
            return $byte - 0x100;
        }

        switch ($byte) {
            case 0xc0: return null;
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xc2: return false;
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xc3: return true;
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

            // bin 8/16/32
            case 0xc4: return $this->decodeStr($this->decodeUint8());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xc5: return $this->decodeStr($this->decodeUint16());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xc6: return $this->decodeStr($this->decodeUint32());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

            // float 32/64
            case 0xca: return $this->decodeFloat32();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xcb: return $this->decodeFloat64();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

            // uint 8/16/32/64
            case 0xcc: return $this->decodeUint8();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xcd: return $this->decodeUint16();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xce: return $this->decodeUint32();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xcf: return $this->decodeUint64();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

            // int 8/16/32/64
            case 0xd0: return $this->decodeInt8();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xd1: return $this->decodeInt16();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xd2: return $this->decodeInt32();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xd3: return $this->decodeInt64();
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

            // str 8/16/32
            case 0xd9: return $this->decodeStr($this->decodeUint8());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xda: return $this->decodeStr($this->decodeUint16());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xdb: return $this->decodeStr($this->decodeUint32());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

            // array 16/32
            case 0xdc: return $this->decodeArray($this->decodeUint16());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xdd: return $this->decodeArray($this->decodeUint32());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

            // map 16/32
            case 0xde: return $this->decodeMap($this->decodeUint16());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xdf: return $this->decodeMap($this->decodeUint32());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

            // fixext 1/2/4/8/16
            case 0xd4: return $this->decodeExt(1);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xd5: return $this->decodeExt(2);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xd6: return $this->decodeExt(4);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xd7: return $this->decodeExt(8);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xd8: return $this->decodeExt(16);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

            // ext 8/16/32
            case 0xc7: return $this->decodeExt($this->decodeUint8());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xc8: return $this->decodeExt($this->decodeUint16());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case 0xc9: return $this->decodeExt($this->decodeUint32());
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
          }


        throw UnknownByteHeader::fromOffset($byte, $this->offset);
    }

    private function decodeFloat32(): float
    {
        if (!isset($this->data[$this->offset + 3])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 4);
        }

        $num = ORD[$this->data[$this->offset++]] * 0x1000000
            | ORD[$this->data[$this->offset++]] << 16
            | ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];

        return toFloat($num);
    }

    private function decodeFloat64(): float
    {
        if (!isset($this->data[$this->offset + 7])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 8);
        }

        $x = ORD[$this->data[$this->offset++]] * 0x1000000
            | ORD[$this->data[$this->offset++]] << 16
            | ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];

        $y = ORD[$this->data[$this->offset++]] * 0x1000000
            | ORD[$this->data[$this->offset++]] << 16
            | ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];

        return toDouble($y, $x);
    }

    private function decodeUint8(): int
    {
        if (!isset($this->data[$this->offset])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 1);
        }

        return ORD($this->data[$this->offset++]);
    }

    private function decodeUint16(): int
    {
        if (!isset($this->data[$this->offset + 1])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 2);
        }

        return ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];
    }

    private function decodeUint32(): int
    {
        if (!isset($this->data[$this->offset + 3])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 4);
        }

        return ORD[$this->data[$this->offset++]] * 0x1000000
            | ORD[$this->data[$this->offset++]] << 16
            | ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];
    }

    private function decodeUint64()
    {
        if (!isset($this->data[$this->offset + 7])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 8);
        }

        $num = (ORD[$this->data[$this->offset++]] * 0x1000000
            | ORD[$this->data[$this->offset++]] << 16
            | ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]]) * 0x100000000
            | ORD[$this->data[$this->offset++]] * 0x1000000
            | ORD[$this->data[$this->offset++]] << 16
            | ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];

        return $num < 0 ? sprintf('%u', $num) : $num;
    }

    private function decodeInt8(): int
    {
        if (!isset($this->data[$this->offset])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 1);
        }

        $num = ORD[$this->data[$this->offset++]];

        return $num & 0x80 ? $num - 0x100 : $num;
    }

    private function decodeInt16(): int
    {
        if (!isset($this->data[$this->offset + 1])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 2);
        }

        $num = ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];

        return $num & 0x8000 ? $num - 0x10000 : $num;
    }

    private function decodeInt32(): int
    {
        if (!isset($this->data[$this->offset + 3])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 4);
        }

        $num = ORD[$this->data[$this->offset++]] << 24
            | ORD[$this->data[$this->offset++]] << 16
            | ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];

        return $num & 0x80000000 ? $num - 0x100000000 : $num;
    }

    private function decodeInt64(): int
    {
        if (!isset($this->data[$this->offset + 7])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, 8);
        }

        $num = ORD[$this->data[$this->offset++]] << 24
            | ORD[$this->data[$this->offset++]] << 16
            | ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];

        if ($num & 0x80000000) {
            $num -= 0x100000000;
        }

        return $num * 0x100000000
            | ORD[$this->data[$this->offset++]] * 0x1000000
            | ORD[$this->data[$this->offset++]] << 16
            | ORD[$this->data[$this->offset++]] << 8
            | ORD[$this->data[$this->offset++]];
    }

    private function decodeStr(int $length): string
    {
        if (0 === $length) {
            return '';
        }

        if (!isset($this->data[$this->offset + $length - 1])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, $length);
        }

        $str = substr($this->data, $this->offset++, $length);
        $this->offset += $length;

        return $str;
    }

    private function decodeArray(int $size): array
    {
        $array = [];
        while ($size--) {
            $array[] = $this->parse();
        }

        return $array;
    }

    private function decodeMap(int $size): array
    {
        $map = [];
        while ($size--) {
            $map[$this->parse()] = $this->parse();
        }

        return $map;
    }

    private function decodeExt(int $length): Ext
    {
        if (!isset($this->data[$this->offset + $length - 1])) {
            throw InsufficientData::fromOffset($this->data, $this->offset, $length);
        }

        $type = ORD[$this->data[$this->offset++]];
        $data = substr($this->data, $this->offset++, $length);

        $this->offset += $length;

        return Ext::make($type, $data);
    }
}


1		<?php
2		declare(strict_types=1);
3
4		namespace MessagePack;
5
6		use MessagePack\{
7		Exception\InsufficientData,
8		Exception\UnknownByteHeader,
9		Ext
10		};
11		use const MessagePack\ORD;
12		use function MessagePack\{toDouble, toFloat};
13		use function sprintf;
14		use function substr;
15
16		final class Decoder
17		{
18		/** @var string */
19		private $data = '';
20
21		/** @var int */
22		private $offset = 0;
23
24	93	public function decode(string $data)
25		{
26	93	$this->data = $data;
27	93	$this->offset = 0;
28
29	93	return $this->parse();
30		}
31
32	93	private function parse()
33		{
34	93	if (!isset($this->data[$this->offset])) {
35	1	throw InsufficientData::fromOffset($this->data, $this->offset, 1);
36		}
37
38	92	$byte = ORD[$this->data[$this->offset++]];
39
40	92	if ($byte < 0xc0) {

AlexMasterov / msgpack.php

Issues (80)

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src/Decoder.php (63 issues)

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