Issues in create-ca-cert.php (master) - Issues in master - et-nik/x509 - Measure and Improve Code Quality continuously with Scrutinizer

Issues (19)

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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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examples/create-ca-cert.php (1 issue)

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<?php
/**
 * Create certification authority certificate.
 *
 * php create-ca-cert.php
 */

use Sop\CryptoEncoding\PEM;
use Sop\CryptoTypes\AlgorithmIdentifier\Hash\SHA256AlgorithmIdentifier;
use Sop\CryptoTypes\AlgorithmIdentifier\Signature\SignatureAlgorithmIdentifierFactory;
use Sop\CryptoTypes\Asymmetric\PrivateKeyInfo;
use X501\ASN1\Name;
use X509\Certificate\TBSCertificate;
use X509\Certificate\Validity;
use X509\Certificate\Extension\BasicConstraintsExtension;
use X509\Certificate\Extension\KeyUsageExtension;
use X509\Certificate\Extension\SubjectKeyIdentifierExtension;

require dirname(__DIR__) . "/vendor/autoload.php";

// load RSA private key from PEM
$private_key_info = PrivateKeyInfo::fromPEM(
    PEM::fromFile(dirname(__DIR__) . "/test/assets/rsa/private_key.pem"));

// extract public key from private key
$public_key_info = $private_key_info->publicKeyInfo();

// DN of the certification authority
$name = Name::fromString("cn=Example CA");

// validity period
$validity = Validity::fromStrings("now", "now + 10 years");

// create "to be signed" certificate object with extensions
$tbs_cert = new TBSCertificate($name, $public_key_info, $name, $validity);

$tbs_cert = $tbs_cert->withRandomSerialNumber()->withAdditionalExtensions(
    new BasicConstraintsExtension(true, true),
    new SubjectKeyIdentifierExtension(false, $public_key_info->keyIdentifier()),
    new KeyUsageExtension(true,
        KeyUsageExtension::DIGITAL_SIGNATURE | KeyUsageExtension::KEY_CERT_SIGN));

// sign certificate with private key
$algo = SignatureAlgorithmIdentifierFactory::algoForAsymmetricCrypto(
    $private_key_info->algorithmIdentifier(), new SHA256AlgorithmIdentifier());


$cert = $tbs_cert->sign($algo, $private_key_info);

echo $cert;


1			<?php
2			/**
3			* Create certification authority certificate.
4			*
5			* php create-ca-cert.php
6			*/
7
8			use Sop\CryptoEncoding\PEM;
9			use Sop\CryptoTypes\AlgorithmIdentifier\Hash\SHA256AlgorithmIdentifier;
10			use Sop\CryptoTypes\AlgorithmIdentifier\Signature\SignatureAlgorithmIdentifierFactory;
11			use Sop\CryptoTypes\Asymmetric\PrivateKeyInfo;
12			use X501\ASN1\Name;
13			use X509\Certificate\TBSCertificate;
14			use X509\Certificate\Validity;
15			use X509\Certificate\Extension\BasicConstraintsExtension;
16			use X509\Certificate\Extension\KeyUsageExtension;
17			use X509\Certificate\Extension\SubjectKeyIdentifierExtension;
18
19			require dirname(__DIR__) . "/vendor/autoload.php";
20
21			// load RSA private key from PEM
22			$private_key_info = PrivateKeyInfo::fromPEM(
23			PEM::fromFile(dirname(__DIR__) . "/test/assets/rsa/private_key.pem"));
24
25			// extract public key from private key
26			$public_key_info = $private_key_info->publicKeyInfo();
27
28			// DN of the certification authority
29			$name = Name::fromString("cn=Example CA");
30
31			// validity period
32			$validity = Validity::fromStrings("now", "now + 10 years");
33
34			// create "to be signed" certificate object with extensions
35			$tbs_cert = new TBSCertificate($name, $public_key_info, $name, $validity);
36
37			$tbs_cert = $tbs_cert->withRandomSerialNumber()->withAdditionalExtensions(
38			new BasicConstraintsExtension(true, true),
39			new SubjectKeyIdentifierExtension(false, $public_key_info->keyIdentifier()),
40			new KeyUsageExtension(true,
41			KeyUsageExtension::DIGITAL_SIGNATURE \| KeyUsageExtension::KEY_CERT_SIGN));
42
43			// sign certificate with private key
44			$algo = SignatureAlgorithmIdentifierFactory::algoForAsymmetricCrypto(
45			$private_key_info->algorithmIdentifier(), new SHA256AlgorithmIdentifier());
			0 ignored issues – show Compatibility introduced 2019-03-07 11:49 UTC by Report Bug Copy Issue Report Show Similar Issues like this `$private_key_info->algorithmIdentifier()` of type `object<Sop\CryptoTypes\A...lgorithmIdentifierType>` is not a sub-type of `object<Sop\CryptoTypes\A...ptoAlgorithmIdentifier>`. It seems like you assume a child interface of the interface `Sop\CryptoTypes\Algorith...AlgorithmIdentifierType` to be always present. This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass. Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type. Loading history...
46
47			$cert = $tbs_cert->sign($algo, $private_key_info);
48
49			echo $cert;
50

et-nik / x509

Issues (19)

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examples/create-ca-cert.php (1 issue)

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