** Description changed: Recently, we are trying to find SSL security problems by static analysis. For example, as we all know, Hostname verification is an important step when verifying X509 certificates, however, people tend to miss the step or to misunderstand the APIs when using SSL/TLS, which might cause severe man in the middle attack and break the entire TLS mechanism. And static analysis is a way of finding whether the APIs are called correctly. Now, we find some SSL problems in perdition, the following is details: ----------------------------------------------------------------------------- file : perdition/perdition-1.19~rc4/perdition/ssl.c ----------------------------------------------------------------------------- function : __perdition_ssl_connection ----------------------------------------------------------------------------- SSL method : SSLv23 ----------------------------------------------------------------------------- SSL_CTX_set_verify() argument : SSL_VERIFY_PEER ----------------------------------------------------------------------------- Have SSL_CTX_set_verify ( SSL_set_verify) callback : YES (but accept self-signed certificate & expired certificate) ----------------------------------------------------------------------------- call SSL_get_peer_certificate(): NO ----------------------------------------------------------------------------- call SSL_get_verify_result(): NO ----------------------------------------------------------------------------- - According to the above result, we think the SSL connection in - crtmpserver is not secure .perdition can accept self-signed certificate - & certificate, which means MITM attack is possible. + According to the above result, we think the SSL connection in perdition + is not secure .perdition can accept self-signed certificate & + certificate, which means MITM attack is possible. PS: for more information, you can see the paper: http://people.stfx.ca/x2011/x2011ucj/SSL/p38-georgiev.pdf and more details you can contact with us, we will be very glad for your responce. Thanks.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1380304 Title: perdition have some SSL security problems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/perdition/+bug/1380304/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
