Opened 2 months ago

Closed 2 months ago

#1766 closed defect (invalid)

Request with revoked client certifiate is aborted instead of setting optional verification state

Reported by: nvollmar@… Owned by:
Priority: major Milestone:
Component: nginx-core Version: 1.15.x
Keywords: Cc:
uname -a: Linux x 3.10.0-957.10.1.el7.x86_64 #1 SMP Mon Mar 18 15:06:45 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
nginx -V: nginx version: openresty/1.13.6.2 built by gcc 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) built with OpenSSL 1.1.0h 27 Mar 2018 (running with OpenSSL 1.1.0j 20 Nov 2018) TLS SNI support enabled configure arguments: --prefix=/usr/local/openresty/nginx --with-cc-opt='-O2 -DNGX_LUA_ABORT_AT_PANIC -I/usr/local/openresty/zlib/include -I/usr/local/openresty/pcre/include -I/usr/local/openresty/openssl/include' --add-module=../ngx_devel_kit-0.3.0 --add-module=../echo-nginx-module-0.61 --add-module=../xss-nginx-module-0.06 --add-module=../ngx_coolkit-0.2rc3 --add-module=../set-misc-nginx-module-0.32 --add-module=../form-input-nginx-module-0.12 --add-module=../encrypted-session-nginx-module-0.08 --add-module=../srcache-nginx-module-0.31 --add-module=../ngx_lua-0.10.13 --add-module=../ngx_lua_upstream-0.07 --add-module=../headers-more-nginx-module-0.33 --add-module=../array-var-nginx-module-0.05 --add-module=../memc-nginx-module-0.19 --add-module=../redis2-nginx-module-0.15 --add-module=../redis-nginx-module-0.3.7 --add-module=../ngx_stream_lua-0.0.5 --with-ld-opt='-Wl,-rpath,/usr/local/openresty/luajit/lib -L/usr/local/openresty/zlib/lib -L/usr/local/openresty/pcre/lib -L/usr/local/openresty/openssl/lib -Wl,-rpath,/usr/local/openresty/zlib/lib:/usr/local/openresty/pcre/lib:/usr/local/openresty/openssl/lib' --with-pcre-jit --with-stream --with-stream_ssl_module --with-stream_ssl_preread_module --with-http_v2_module --without-mail_pop3_module --without-mail_imap_module --without-mail_smtp_module --with-http_stub_status_module --with-http_realip_module --with-http_addition_module --with-http_auth_request_module --with-http_secure_link_module --with-http_random_index_module --with-http_gzip_static_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-threads --with-dtrace-probes --with-stream --with-stream_ssl_module --with-http_ssl_module

Description

With ssl_verify_client optional; and ssl_crl set one would expect variable ssl_client_verify to be FAILED and request continuing to be processed.
Currently the request is aborted with a 400 response:

client SSL certificate verify error: (23:certificate revoked) while reading client request headers, client: 192.168.12.19, request: "GET / HTTP/1.1"

Change History (1)

comment:1 Changed 2 months ago by mdounin

  • Resolution set to invalid
  • Status changed from new to closed

This is expected behaviour. The optional parameter means that providing a certificate is optional. But if a certficate is provided, it is verified, and requests are not allowed if verification fails. For requests to be allowed as per optional, the client needs to stop providing the invalid certificate.

If you want to do some sophisticated processing of such errors, consider using error_page to handle the 495 error.

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