AWS SSL security error : [curl] 60: SSL certificate prob...: unable to get local issuer certificate

Question

I am trying to connect Amazon's S3 files from my (localhost) Windows 8 machine running AppServ 2.5.10 (which includes Apache 2.2.8, php 5.2.6, mysql 5.0.51b and phpMyAdmin 2.10.3) using Amazon SDK for php.

In order to be compatible with Amazon SDK's namespace feature, I replaced php with version 5.3.28 by downloading its zipped file and unzipped it.

My php code works fine to access S3 file in Amazon EC2 but it failed in my Windows local host.

However when I run the php srcipt to read Amazon S3 bucket file in Windows local host machine, I got SSL error as following:

Fatal error: Uncaught exception 'Guzzle\Http\Exception\CurlException' with message '[curl] 60: SSL certificate problem: unable to get local issuer certificate [url] https://images-st.s3.amazonaws.com/us/123977_sale_red_car.png' in C:\AppServ\www\ecity\vendor\guzzle\guzzle\src\Guzzle\Http\Curl\CurlMulti.php:342 Stack trace:

#0 C:\AppServ\www\ecity\vendor\guzzle\guzzle\src\Guzzle\Http\Curl\CurlMulti.php(283): Guzzle\Http\Curl\CurlMulti->isCurlException(Object(Guzzle\Http\Message\Request), Object(Guzzle\Http\Curl\CurlHandle), Array)

#1 C:\AppServ\www\ecity\vendor\guzzle\guzzle\src\Guzzle\Http\Curl\CurlMulti.php(248): Guzzle\Http\Curl\CurlMulti->processResponse(Object(Guzzle\Http\Message\Request), Object(Guzzle\Http\Curl\CurlHandle), Array)

#2 C:\AppServ\www\ecity\vendor\guzzle\guzzle\src\Guzzle\Http\Curl\CurlMulti.php(231): Guzzle\Http\Curl\CurlMulti->processMessages()

#3 C:\AppServ\www\ecity\vendor\guzzle\guzzle\src\Guzzle\Http\Curl\CurlMulti.php(215): Guzzle\Http\Curl\CurlMulti->executeHandles()

#4 C:\AppServ\www\ecity\ven in C:\AppServ\www\ecity\vendor\aws\aws-sdk-php\src\Aws\Common\Client\AbstractClient.php on line 288

I download the certifate from http://curl.haxx.se/ca/cacert.pem and define it in php.ini as following:

curl.cainfo = "C:\AppServ\cacert.pem"

but I still got the same error. It seems php doesn't honor the curl.cainfo defined in php.ini.

My php version is 5.3.28 according to localhost/phpinfo.php.

I also checked the cainfo parameter to be correct as C:\AppServ\cacert.pem using

echo ini_get( "curl.cainfo" ) ; 

in the php script.

Php version higher than 5.3 shall support curl.cainfo in php.ini.

In Windows' command line, I check curl behavior and it seems work fine.

C:\Users\Jordan>curl  https://s3-us-west-2.amazonaws.com/images-st/aaa.txt
   curl: (60) SSL certificate problem: unable to get local issuer certificate
   ......

C:\Users\Jordan>curl --cacert C:\AppServ\cacert.crt  https://s3-us-west-2.amazonaws.com/images-st/aaa.txt
  This is aaa.txt file.
  Stored in Amazon S3 bucket.

Is it because I used Apache in Windows which doesn't match php 5.3.28 zip file I downloaded from http://windows.php.net/download/ VC9 x86 Thread Safe (2014-Jun-11 01:09:56) zip version.

In my apache's httpd-ssl.conf file, I have the following setting even I use from local host in Windows 8.

<VirtualHost _default_:443>

DocumentRoot "C:/AppServ/www"
ServerName localhost:443
ServerAdmin webmaster@localhost.com
ErrorLog "C:/AppServ/Apache2.2/logs/error.log"
TransferLog "C:/AppServ/Apache2.2/logs/access.log"

SSLEngine on

SSLCipherSuite ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL
SSLCertificateFile "C:/AppServ/Apache2.2/conf/mydomain.cert"
SSLCertificateKeyFile "C:/AppServ/Apache2.2/conf/mydomain.key"

<FilesMatch "\.(cgi|shtml|phtml|php)$">
    SSLOptions +StdEnvVars
</FilesMatch>
<Directory "C:/Apache2.2/cgi-bin">
    SSLOptions +StdEnvVars
</Directory>

BrowserMatch ".*MSIE.*" \
     nokeepalive ssl-unclean-shutdown \
     downgrade-1.0 force-response-1.0

CustomLog "C:/AppServ/Apache2.2/logs/ssl_request.log" \
      "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"

</VirtualHost>                                  

Now I am wondering what is the problem and how to connect to Amazon S3 bucket files and RDS database without producing these curl cannot get local issuer certificate problems from my Windows 8 local host.

Any advice?

Answer 1

After a long time, I rewrote my answer. I tested it and found it easy and safe.

To overcome this problem you have to define SSL certificate file path in your PHP.ini

To download the file from safe source. Try it in the Command prompt...

X:\ssl files> curl -o cacert.pem https://curl.se/ca/cacert.pem

Now define the absolute path in your php.ini file.

curl.cainfo = "X:\SSL Files\cacert.pem"

Restart the WAMP server or any server that you are using.

Answer 2

I have faced the same issue but after research, I have found a Laravel native solution for the AWS S3 bucket.

Step 1: Go to the config/filesystems.php

Step 2: Add the 'scheme' => 'http' in 's3' array, like below:

's3' => [
            'driver' => 's3',
            'key' => env('AWS_ACCESS_KEY_ID'),
            'secret' => env('AWS_SECRET_ACCESS_KEY'),
            'region' => env('AWS_DEFAULT_REGION'),
            'bucket' => env('AWS_BUCKET'),
            'url' => env('AWS_URL'),
            'endpoint' => env('AWS_ENDPOINT'),
            'use_path_style_endpoint' => env('AWS_USE_PATH_STYLE_ENDPOINT', false,
            'scheme'  => 'http'
        ],

That's it. Now, you can run your app and test it.

Once you move your web app on the live server and if your web app runs over the https protocol then you need to remove this attribute

Answer 3

$s3 = new S3Client
         ([
            'version' => 'latest',
            'scheme' =>'http',
            'region'  => $this->config->item('s3_region'),
            'credentials' => [
                'key'    => $this->config->item('s3_access_key'),
                'secret' => $this->config->item('s3_secret_key')
            ],
        ]);

add Scheme to http if your protocol is Http

Answer 4

For those using WampServer, open the php.ini file then scroll down to the bottom and add the following:

curl.cainfo = "C:\wamp\bin\php\php7.2.3\cacert.pem"

Make sure you have the cacert.pem file in the folder of the current php version you are using. In my case, I have it in the php7.2.3 folder.

Answer 5

I was getting the same error If you want to use http then you can use below solution:

 Error executing "PutObject" on "https://s3-ap-southeast-2.amazonaws.com/mybucketname/TestBanner1_e1d8d74e41"; AWS HTTP error: cURL error 60: SSL certificate problem: unable to get local issuer certificate (see http://curl.haxx.se/libcurl/c/libcurl-errors.html)

I have resolved it by using http method this is not secure to use secure way enter _ curl.cainfo = "/path/to/file.cacert.pem"_ in php.ini file :

Solution:

'options' => [
'scheme' => 'http',
],

Complete Example code:

 // ...
's3bucket' => [
'class' => \frostealth\yii2\aws\s3\Storage::className(),
'region' => 'ap-southeast-2',
'credentials' => [ // Aws\Credentials\CredentialsInterface|array|callable
'key' => 'JGUTEHCDE.............OSHS',
'secret' => 'SJEUC-----------jzy1-----rrT',
],
'bucket' => 'yours3bucket',
//'cdnHostname' => 'http://example.cloudfront.net',
'defaultAcl' => \frostealth\yii2\aws\s3\Storage::ACL_PUBLIC_READ,
'debug' => false, // bool|array
'options' => [
'scheme' => 'http',
],

],
// ...

Answer 6

As mentioned by Jeremy Lindblom in the comments, the solution for AWS SDK v2 is to set the ssl.certificate_authority option when instantiating the SDK:

$aws = Aws\Common\Aws::factory(array(
    'region' => 'us-west-2',
    'ssl.certificate_authority' => '/path/to/updated/cacert.pem'
));

http://docs.aws.amazon.com/aws-sdk-php/guide/latest/faq.html#what-do-i-do-about-a-curl-ssl-certificate-error

---

I'll add that this was changed in the AWS SDK v3, here is the new method:

$client = new DynamoDbClient([
    'region'  => 'us-west-2',
    'version' => 'latest',
    'http'    => [
        'verify' => '/path/to/my/cert.pem'
    ]
]);

http://docs.aws.amazon.com/aws-sdk-php/v3/guide/guide/configuration.html#verify