Opened 2 months ago

#2041 new defect

Can't get old SSL cert to work - ca md too weak

Reported by: jez9999@… Owned by:
Priority: minor Milestone:
Component: nginx-core Version: 1.19.x
Keywords: ssl Cc: jez9999@…
uname -a: Linux vm-debian-main 4.19.0-8-amd64 #1 SMP Debian 4.19.98-1 (2020-01-26) x86_64 GNU/Linux
nginx -V: nginx version: nginx/1.14.2
built with OpenSSL 1.1.1c 28 May 2019 (running with OpenSSL 1.1.1d 10 Sep 2019)
TLS SNI support enabled
configure arguments: --with-cc-opt='-g -O2 -fdebug-prefix-map=/build/nginx-tBUzFN/nginx-1.14.2=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -Wdate-time -D_FORTIFY_SOURCE=2' --with-ld-opt='-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-tBUzFN/nginx-1.14.2/debian/modules/http-auth-pam --add-dynamic-module=/build/nginx-tBUzFN/nginx-1.14.2/debian/modules/http-dav-ext --add-dynamic-module=/build/nginx-tBUzFN/nginx-1.14.2/debian/modules/http-echo --add-dynamic-module=/build/nginx-tBUzFN/nginx-1.14.2/debian/modules/http-upstream-fair --add-dynamic-module=/build/nginx-tBUzFN/nginx-1.14.2/debian/modules/http-subs-filter

Description

I'm trying to use an old SSL cert for one of my sites, and nginx fails to start with the error:

nginx: [emerg] SSL_CTX_add0_chain_cert("/etc/ssl/certs/game-point.net_crt_withcabundle.pem") failed (SSL: error:1415A18E:SSL routines:ssl_cert_add0_chain_cert:ca md too weak)
nginx: configuration file /etc/nginx/nginx.conf test failed

I do NOT wish to generate a newer certificate - I'm aware of the security issues with using old certs. I want to get this one to work despite it's being old and insecure. Don't ask me why. :-)

However, I can't get past this error. I tried changing ssl_ciphers in my /snippets/ssl.conf file:

ssl_ciphers ALL:@SECLEVEL=0;

But I still get the same error when Nginx starts. Is there some built-in setting that prevents security level getting set to 0 or something?

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