Como corrigir falha de handshake de alerta curl sslv3 no Gentoo?

Question

Estou tentando abrir um site com cURL assim:

$ curl -vH "Accept: application/json" https://www.rocketleaguereplays.com/api/replays/-1/

A saída é:

*   Trying 104.24.114.83...
* Connected to www.rocketleaguereplays.com (104.24.114.83) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
*   CAfile: /etc/ssl/certs/ca-certificates.crt
  CApath: /etc/ssl/certs
* TLSv1.2 (OUT), TLS header, Certificate Status (22):
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS header, Unknown (21):
* TLSv1.2 (IN), TLS alert, Server hello (2):
* error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure
* Closing connection 0
* TLSv1.2 (OUT), TLS alert, Client hello (1):
curl: (35) error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure

Eu tenho o kernel Linux 4.4.0 e a versão mais recente do cURL instalada:

$ curl -V
curl 7.47.1 (x86_64-pc-linux-gnu) libcurl/7.47.1 OpenSSL/1.0.2f zlib/1.2.8 c-ares/1.10.0 nghttp2/1.6.0
Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smtp smtps telnet tftp
Features: AsynchDNS IPv6 Largefile NTLM SSL libz TLS-SRP HTTP2 UnixSockets

Como posso consertar isso? No Ubuntu funciona bem com cURL e o mesmo URL.

    

Answer 1

Basicamente, o link usa criptografia desatualizada (SSL3), você pode forçar o curl a se conectar a sites inseguros como esse usando o -k (- -secure) mudar.

Tente isto: curl -kvH "Accept: application/json" https://www.rocketleaguereplays.com/api/replays/-1/

Você também pode tentar usar a opção -3 aka --sslv3 , no entanto, se o curl foi criado sem o suporte a SSL3, será necessário compilar sua própria versão de curl, ativando o SSL3.

EDIT: O op encontrou o problema.

Eu fiquei confuso com a mensagem de erro.

Este é um bug no gentoo:

link

Basicamente, quando você cria o openssl com o sinalizador de bindist, a criptografia de curva elíptica é desabilitada. Este site requer criptografia de curva elíptica.

Quando eu executo isso, recebo o seguinte:

$ curl -vH "Accept: application/json" https://www.rocketleaguereplays.com/api/replays/-1/ * STATE: INIT => CONNECT handle 0x6000572d0; line 1090 (connection #-5000) * Added connection 0. The cache now contains 1 members * Trying 2400:cb00:2048:1::6818:7353... * STATE: CONNECT => WAITCONNECT handle 0x6000572d0; line 1143 (connection #0) * Connected to www.rocketleaguereplays.com (2400:cb00:2048:1::6818:7353) port 443 (#0) * STATE: WAITCONNECT => SENDPROTOCONNECT handle 0x6000572d0; line 1240 (connection #0) * ALPN, offering http/1.1 * Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH * successfully set certificate verify locations: * CAfile: /etc/pki/tls/certs/ca-bundle.crt CApath: none * TLSv1.2 (OUT), TLS header, Certificate Status (22): * TLSv1.2 (OUT), TLS handshake, Client hello (1): * STATE: SENDPROTOCONNECT => PROTOCONNECT handle 0x6000572d0; line 1254 (connection #0) * TLSv1.2 (IN), TLS handshake, Server hello (2): * TLSv1.2 (IN), TLS handshake, Certificate (11): * TLSv1.2 (IN), TLS handshake, Server key exchange (12): * TLSv1.2 (IN), TLS handshake, Server finished (14): * TLSv1.2 (OUT), TLS handshake, Client key exchange (16): * TLSv1.2 (OUT), TLS change cipher, Client hello (1): * TLSv1.2 (OUT), TLS handshake, Finished (20): * TLSv1.2 (IN), TLS change cipher, Client hello (1): * TLSv1.2 (IN), TLS handshake, Finished (20): * SSL connection using TLSv1.2 / ECDHE-ECDSA-AES128-GCM-SHA256 <---- [...]

Então, meu curl usa curva elíptica com este site.