HTTPS and SSL3 GET SERVER CERTIFICATE certificate verify failed CA is OK

Question

I am using XAMPP for development  Recently I upgraded my installation of xampp from an old version to 1 7 3    Now when I curl HTTPS enabled sites I get the following exception     Fatal error  Uncaught exception  RequestCore Exception  with message    cURL resource  Resource       id  55  cURL error  SSL certificate problem  verify that the CA cert is OK  Details        error 14090086 SSL routines SSL3 GET SERVER CERTIFICATE certificate verify failed  60     Everyone suggest using some specific curl options from PHP code to fix this problem  I think this shouldn t be the way  Because I didn t have any problem with my old version of XAMPP and happened only after installing the new version    I need help to figure out what settings change in my PHP installation  Apache etc can fix this problem

User · Answer

The above solutions are great  but if you re using WampServer you might find setting the curl cainfo variable in php ini doesn t work   I eventually found WampServer has two php ini files   C  wamp bin apache Apachex x x bin C  wamp bin php phpx x xx   The first is apparently used for when PHP files are invoked through a web browser  while the second is used when a command is invoked through the command line or shell exec     TL DR  If using WampServer  you must add the curl cainfo line to both php ini files

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I ended up here when trying to get GuzzleHttp  php apache on Mac  to get a page from www googleapis com    Here was my final solution in case it helps anyone    Look at the certificate chain for whatever domain is giving you this error  For me it was googleapis com  openssl s client -host www googleapis com -port 443   You ll get back something like this   Certificate chain  0 s  C US ST California L Mountain View O Google Inc CN   googleapis com    i  C US O Google Inc CN Google Internet Authority G2  1 s  C US O Google Inc CN Google Internet Authority G2    i  C US O GeoTrust Inc  CN GeoTrust Global CA  2 s  C US O GeoTrust Inc  CN GeoTrust Global CA    i  C US O Equifax OU Equifax Secure Certificate Authority   Note  I captured this after I fixed the issue  to your chain output may look different   Then you need to look at the certificates allowed in php  Run phpinfo   in a page    lt  php echo phpinfo      Then look for the certificate file that s loaded from the page output   openssl cafile   usr local php5 ssl certs cacert pem   This is the file you ll need to fix by adding the correct certificate s  to it   sudo nano  usr local php5 ssl certs cacert pem   You basically need to append the correct certificate  signatures  to the end of this file   You can find some of them here  You may need to google search for others in the chain if you need them    https   pki google com  https   www geotrust com resources root-certificates index html   They look like this      Note  This is an image so people will not simply copy paste certificates from stackoverflow   Once the right certificates are in this file  restart apache and test

User · Answer

Sometimes if the application you try to contact has self signed certificates  the normal cacert pem from http   curl haxx se ca cacert pem does not solve the problem   If you are sure about the service endpoint url  hit it through browser  save the certificate manually in  X 509 certificate with chain  PEM   format  Point this certificate file with the   curl setopt   ch  CURLOPT CAINFO   pathto  downloaded certificate chain file

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Warning  this can introduce security issues that SSL is designed to protect against  rendering your entire codebase insecure  It goes against every recommended practice   But a really simple fix that worked for me was to call   curl setopt  ch  CURLOPT SSL VERIFYPEER  false     before calling   curl exec      in the php file   I believe that this disables all verification of SSL certificates

User · Answer

You could try to reinstall the ca-certificates package  or explicitly allow the certificate in question as described here

User · Answer

The solution is very simple  Put this line before curl exec   curl setopt  ch  CURLOPT SSL VERIFYPEER  false     For me it works

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Source  http   ademar name blog 2006 04 curl-ssl-certificate-problem-v html     Curl  SSL certificate problem  verify that the CA cert is OK      07 April 2006      When opening a secure url with Curl you may get the following error       SSL certificate problem  verify that the CA cert is OK      I will explain why the error and what you should do about it       The easiest way of getting rid of the error would be adding the   following two lines to your script   This solution poses a security   risk tho     WARNING  this would prevent curl from detecting a  man in the middle  attack curl setopt   ch  CURLOPT SSL VERIFYHOST  0   curl setopt   ch  CURLOPT SSL VERIFYPEER  0          Let see what this two parameters do  Quoting the manual       CURLOPT SSL VERIFYHOST  1 to check the existence of a common name in the SSL peer certificate  2 to check the existence of a common name   and also verify that it matches the hostname provided       CURLOPT SSL VERIFYPEER  FALSE to stop CURL from verifying the peer s certificate  Alternate certificates to verify against can be   specified with the CURLOPT CAINFO option or a certificate directory   can be specified with the CURLOPT CAPATH option    CURLOPT SSL VERIFYHOST may also need to be TRUE or FALSE if   CURLOPT SSL VERIFYPEER is disabled  it defaults to 2    Setting   CURLOPT SSL VERIFYHOST to 2  This is the default value  will garantee   that the certificate being presented to you have a  common name    matching the URN you are using to access the remote resource  This is   a healthy check but it doesn t guarantee your program is not being   decieved       Enter the  man in the middle       Your program could be misleaded into talking to another server   instead  This can be achieved through several mechanisms  like dns or   arp poisoning   This is a story for another day   The intruder can   also self-sign a certificate with the same  comon name  your program   is expecting  The communication would still be encrypted but you would   be giving away your secrets to an impostor  This kind of attack is   called  man in the middle       Defeating the  man in the middle       Well  we need to to verify the certificate being presented to us is   good for real  We do this by comparing it against a certificate we   reasonable  trust       If the remote resource is protected by a certificate issued by one of   the main CA s like Verisign  GeoTrust et al  you can safely compare   against Mozilla s CA certificate bundle which you can get from   http   curl haxx se docs caextract html      Save the file cacert pem somewhere in your server and set the   following options in your script   curl setopt   ch  CURLOPT SSL VERIFYPEER  TRUE    curl setopt   ch  CURLOPT CAINFO   pathto cacert pem       for All above Info Credit Goes to   http   ademar name blog 2006 04 curl-ssl-certificate-problem-v html

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For the love of all that is holy     In my case  I had to set the openssl cafile PHP config variable to the PEM file path   I trust it is very true that there are many systems where setting curl cainfo in PHP s config is exactly what is needed  but in the environment I m working with  which is the eboraas laravel docker container  which uses Debian 8  jessie  and PHP 5 6  setting that variable did not do the trick   I noticed that the output of php -i did not mention anything about that particular config setting  but it did have a few lines about openssl  There is both an openssl capath and openssl cafile option  but just setting the second one allowed curl via PHP to finally be okay with HTTPS URLs

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It s a pretty common problem in Windows  You need just to set cacert pem to curl cainfo   Since PHP 5 3 7 you could do    download https   curl haxx se ca cacert pem and save it somewhere  update php ini -- add curl cainfo    PATH TO cacert pem    Otherwise you will need to do the following for every cURL resource   curl setopt   ch  CURLOPT CAINFO   PATH TO cacert pem

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When setting the curl options for CURLOPT CAINFO please remember to use single quotes  using double quotes will only cause another error  So your option should look like   curl setopt   ch  CURLOPT CAINFO   c  wamp www mywebfolder cacert pem      Additionally  in your php ini file setting should be written as  notice my double quotes   curl cainfo    C  wamp www mywebfolder    I put it directly below the line that says this  extension php curl dll   For organizing purposes only  you could put it anywhere within your php ini  i just put it close to another curl reference so when I search using keyword curl I caan find both curl references in one area

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curl used to include a list of accepted certificate authorities  CAs  but no longer bundles ANY CA certs since 7 18 1 and onwards  So by default it ll reject all TLS SSL certificates as unverifiable  You ll have to get your CA s root certificate and point curl at it  More details at curl s details on TLS SSL certificates verification

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I have the same error on amazon AMI linux   I Solved by setting curl cainfo on  etc php d curl ini  https   gist github com reinaldomendes 97fb2ce8a606ec813c4b  Addition October 2018  On Amazon Linux v1 edit this file  vi  etc php d 20-curl ini   To add this line  curl cainfo   etc ssl certs ca-bundle crt

[php] HTTPS and SSL3_GET_SERVER_CERTIFICATE:certificate verify failed, CA is OK

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