Opened 3 years ago

Closed 2 years ago

#1401 closed defect (worksforme)

No config warning/error emitted when ssl_dhparam is set but file not found

Reported by: pcdevils@… Owned by:
Priority: minor Milestone:
Component: other Version: 1.12.x
Keywords: ssl, dhparam Cc:
uname -a: Linux vmw 4.4.0-87-generic #110-Ubuntu SMP Tue Jul 18 12:55:35 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
nginx -V: nginx version: nginx/1.12.1
built with OpenSSL 1.0.2g 1 Mar 2016
TLS SNI support enabled
configure arguments: --with-cc-opt='-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security -fPIC -Wdate-time -D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now -fPIC' --prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log --lock-path=/var/lock/nginx.lock --pid-path=/run/nginx.pid --modules-path=/usr/lib/nginx/modules --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with-pcre-jit --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module --with-http_auth_request_module --with-http_v2_module --with-http_dav_module --with-http_slice_module --with-threads --with-http_addition_module --with-http_geoip_module=dynamic --with-http_gunzip_module --with-http_gzip_static_module --with-http_image_filter_module=dynamic --with-http_sub_module --with-http_xslt_module=dynamic --with-stream=dynamic --with-stream_ssl_module --with-stream_ssl_preread_module --with-mail=dynamic --with-mail_ssl_module --add-dynamic-module=/build/nginx-aqArPM/nginx-1.12.1/debian/modules/nginx-auth-pam --add-dynamic-module=/build/nginx-aqArPM/nginx-1.12.1/debian/modules/nginx-dav-ext-module --add-dynamic-module=/build/nginx-aqArPM/nginx-1.12.1/debian/modules/nginx-echo --add-dynamic-module=/build/nginx-aqArPM/nginx-1.12.1/debian/modules/nginx-upstream-fair --add-dynamic-module=/build/nginx-aqArPM/nginx-1.12.1/debian/modules/ngx_http_substitutions_filter_module

Description

This may very well be an incorrect expectation.

When SSL is configured but a file is missing NGINX errors.
If DHParams is configured but the target file is missing NGINX starts without any warnings or errors, including in the log.

Change History (1)

comment:1 by Maxim Dounin, 2 years ago

Resolution: worksforme
Status: newclosed

Correctly reports an error here, with ssl_dhparam /path/to/nowhere; in the configuration:

$ nginx
nginx: [emerg] BIO_new_file("/path/to/nowhere") failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/path/to/nowhere','r') error:2006D080:BIO routines:BIO_new_file:no such file)

Note though that there will no error if ssl_dhparam configured is not used at all - for example, if you'll try to set it in a server{} block without SSL configured.

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