cURL not working Error 77 for SSL connections on CentOS for non-root users

Question

Just recently my server has stopped working for curl requests to https    addresses for my web server   Having dug around a little it appears that it s a problem with the user the webserver is running   If I SSH onto the server as root  amp  call  curl -I -v https   google com       I get the following response       About to connect   to google com port 443   0      Trying 173 194 67 113    connected   Connected to google com  173 194 67 113  port 443   0    Initializing NSS with certpath  sql  etc pki nssdb     CAfile   etc pki tls certs ca-bundle crt   CApath  none   SSL connection using SSL RSA WITH RC4 128 SHA   Server certificate          subject  CN   google com O Google Inc L Mountain View ST California C US         start date  May 22 15 50 20 2013 GMT         expire date  Oct 31 23 59 59 2013 GMT         common name    google com         issuer  CN Google Internet Authority O Google Inc C US  gt  HEAD   HTTP 1 1  gt  User-Agent  curl 7 19 7  x86 64-redhat-linux-gnu  libcurl 7 19 7 NSS 3 14 0 0 zlib 1 2 3 libidn 1 18 libssh2 1 4 2  gt  Host  google com  gt  Accept        However  if I log in as any of the cPanel accounts  also used when running via the web server  I get the following       About to connect   to google com port 443   0      Trying 173 194 67 101    connected   Connected to google com  173 194 67 101  port 443   0    Initializing NSS with certpath  none   NSS error -5978   Closing connection  0   Problem with the SSL CA cert  path  access rights   curl   77  Problem with the SSL CA cert  path  access rights     I ve not been able to find a definitive answer to the problem   amp  my hosting company are refusing to help as it s  Out of support  even though it was working fine last week   I did find mention on http   curl haxx se docs sslcerts html that      If libcurl was built with NSS support  then depending on the OS distribution    it is probably required to take some additional steps to use the system-wide CA   cert db  RedHat ships with an additional module  libnsspem so  which enables   NSS to read the OpenSSL PEM CA bundle  This library is missing in OpenSuSE  and   without it  NSS can only work with its own internal formats  NSS also has a new   database format  https   wiki mozilla org NSS Shared DB        but I can find no information on how I get this working system-wide on my CentOS server   Info  curl 7 19 7  x86 64-redhat-linux-gnu  libcurl 7 19 7 NSS 3 14 0 0 zlib 1 2 3 libidn 1 18 libssh2 1 4 2 Protocols  tftp ftp telnet dict ldap ldaps http file https ftps scp sftp  Features  GSS-Negotiate IDN IPv6 Largefile NTLM SSL libz    Can anyone shed some light on why this might have suddenly changed  or better still how to fix it   Thanks

User · Answer

For Ubuntu   sudo apt-get install ca-certificates   Hit this problem trying to curl things as ROOT inside of Dockerfile

User · Answer

Check that you have the correct rights set on CA certificates bundle   Usually  that means read access for everyone to CA files in the  etc ssl certs directory  for instance  etc ssl certs ca-certificates crt   You can see what files have been configured for you curl version with the curl-config --configure command      curl-config --configure   --prefix  usr     --mandir  usr share man     --disable-dependency-tracking     --disable-ldap     --disable-ldaps     --enable-ipv6     --enable-manual     --enable-versioned-symbols     --enable-threaded-resolver     --without-libidn     --with-random  dev urandom     --with-ca-bundle  etc ssl certs ca-certificates crt     CFLAGS -march x86-64 -mtune generic -O2 -pipe -fstack-protector --param ssp-buffer-size 4   LDFLAGS -Wl -O1 --sort-common --as-needed -z relro     CPPFLAGS -D FORTIFY SOURCE 2    Here you need read access to  etc ssl certs ca-certificates crt    curl-config --configure   --build   i486-linux-gnu     --prefix  usr     --mandir  usr share man     --disable-dependency-tracking     --enable-ipv6     --with-lber-lib lber     --enable-manual     --enable-versioned-symbols     --with-gssapi  usr     --with-ca-path  etc ssl certs     build alias i486-linux-gnu     CFLAGS -g -O2     LDFLAGS      CPPFLAGS     And the same here

User · Answer

Turns out that the problem was with face that the script was running from a cPanel  email piped to script   so was running as the user  so is was a user problem  but was not affecting the web server at all   The cause for the user not being able to access the  etc pki directory was due to them only having jailed ssh access   Once I granted full access  it all worked fine   Thanks for the info though  Remi

User · Answer

I had faced same issue whenever I tried executing curl on my https server    About to connect   to localhost port 443   0  Trying   1    Connected to localhost    1  port 443   0  Initializing NSS with certpath  sql  etc pki nssdb   Observed this issue when I configured keystore path incorrectly  After correcting keystore path it worked

User · Answer

I just had a similar problem with Error 77 on CentOS7   I was missing the softlink  etc pki tls certs ca-bundle crt that is installed with the ca-certificates RPM    curl  was attempting to open this path to get the Certificate Authorities   I discovered with   strace curl https   example com   and saw clearly that the open failed on that link   My fix was   yum reinstall ca-certificates   That should setup everything again   If you have private CAs for Corporate or self-signed use make sure they are in  etc pki ca-trust source anchors so that they are re-added

User · Answer

If you recently reached here as I did when searching for the same error in vain you may find it to be an update to NSS causing failure on CentOS  Test by running yum update and see if you get errors  curl also creates this error  Solution is simple enough just install NSS manually   Read on     If you re like me it threw up an error similar to this   curl   77  Problem with the SSL CA cert  path  access rights     This took some time to solve but found that it wasn t the CA cert because by recreating them and checking all the configuration I had ruled it out  It could have been libcurl so I went in search of updates   As mentioned I recreated CA certs  You can do this also but it may be a waste of time  http   wiki centos org HowTos Https  The next step  probably should of been my first  was to check that everything was up-to-date by simply running yum     yum update   yum upgrade   This gave me an affirmative answer that there was a bigger problem at play  Downloading Packages  error  rpmts HdrFromFdno  Header V3 RSA SHA1 Signature  key ID c105b9de  BAD Problem opening package nss-softokn-freebl-3 14 3   19 el6 6 x86 64 rpm I started reading about Certificate Verification with NSS and how this new update may be related to my problems  So yum is broken  This is because nss-softokn-  needs nss-softokn-freebl-  need each other to function  The problem is they don t check each others version for compatibility and in some cases it ends up breaking yum  Lets go fix things     wget http   mirrors linode com centos 6 6 updates x86 64 Packages nsssoftokn-freebl-3 14 3-19 el6 6 x86 64 rpm   rpm -Uvh nss-softokn-freebl-3 14 3   19 el6 6 x86 64 rpm   yum update   You should of course download from your nearest mirror and check for the correct version   OS etc  We basically download and install the update from the rpm to fix yum  As  grumpysysadmin pointed out you can shorten the commands down   cwgtex contributed that you should install the upgrade using the RPM command making the process even simplier   To fix things with wordpress you need to restart your http server     service httpd restart   Try again and success

User · Answer

The error is due to corrupt or missing SSL chain certificate files in the PKI directory   You   ll need to make sure the files ca-bundle  following steps  In your console terminal   mkdir  usr src ca-certificates  amp  amp  cd  usr src ca-certificates   Enter this site  https   rpmfind net linux rpm2html search php query ca-certificates   get your ca-certificate  for yout SO  for example  ftp   rpmfind net linux fedora linux updates 24 x86 64 c ca-certificates-2016 2 8-1 0 fc24 noarch rpm   lt  lt  CentOS  Copy url of download and paste in url      wget your url donwload ca-ceritificated rpm now  install yout rpm   rpm2cpio your url donwload ca-ceritificated rpm   cpio -idmv   now restart your service  my example this command    sudo service2 httpd restart   very great good look

User · Answer

Windows users  add this to PHP ini   curl cainfo    C  cacert pem     Path needs to be changed to your own and you can download cacert pem from a google search   yes I know its a CentOS question

User · Answer

Please check the permissions on the the ca certificates installed on server

[curl] cURL not working (Error #77) for SSL connections on CentOS for non-root users

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