> On Jan 22, 2019, at 7:18 PM, SoftwareInforJam <softwareinfor...@gmail.com> 
> wrote:
> 
> Well I am making some progress I guess. Now modsecurity is installed and not 
> orphaned. My challenge now is that I have been reading several documents and 
> all of them say I need to add the following to nginx.conf
> 
> load_module modules/ngx_http_modsecurity.so;
> 
> My challenge now is I can’t seem to find this module anywhere. I am not sure 
> what to do now. Isn’t this module needed for this to work?
> 
> root@proxy:/usr/local/etc/nginx # find / -name "ngx_http_modsecurity*"
> /usr/ports/www/nginx/work/nginx-1.14.2/objs/addon/src/ngx_http_modsecurity_body_filter.o
> /usr/ports/www/nginx/work/nginx-1.14.2/objs/addon/src/ngx_http_modsecurity_rewrite.o
> /usr/ports/www/nginx/work/nginx-1.14.2/objs/addon/src/ngx_http_modsecurity_log.o
> /usr/ports/www/nginx/work/nginx-1.14.2/objs/addon/src/ngx_http_modsecurity_pre_access.o
> /usr/ports/www/nginx/work/nginx-1.14.2/objs/addon/src/ngx_http_modsecurity_header_filter.o
> /usr/ports/www/nginx/work/nginx-1.14.2/objs/addon/src/ngx_http_modsecurity_module.o
> /usr/ports/www/nginx/work/ModSecurity-nginx-71ede63/src/ngx_http_modsecurity_body_filter.c
> /usr/ports/www/nginx/work/ModSecurity-nginx-71ede63/src/ngx_http_modsecurity_common.h
> /usr/ports/www/nginx/work/ModSecurity-nginx-71ede63/src/ngx_http_modsecurity_header_filter.c
> /usr/ports/www/nginx/work/ModSecurity-nginx-71ede63/src/ngx_http_modsecurity_log.c
> /usr/ports/www/nginx/work/ModSecurity-nginx-71ede63/src/ngx_http_modsecurity_module.c
> /usr/ports/www/nginx/work/ModSecurity-nginx-71ede63/src/ngx_http_modsecurity_pre_access.c
> /usr/ports/www/nginx/work/ModSecurity-nginx-71ede63/src/ngx_http_modsecurity_rewrite.c

Here are the steps I just followed successfully in a test jail – a mix of 
packages (modsecurity3) and the source for nginx and the ModSecurity3-nginx 
connector; the ‘modsecurity3’ package installs the shared library (e.g., 
/usr/local/lib/libmodsecurity.so.3.0.3), but doesn’t install the nginx 
connector. If the nginx port doesn’t have a make option for the connector, you 
might have to either hack the port or just compile from source like I did:

-----
Very simplified, single jail
-----


1. Install the modsecurity3 library package and git for cloning the 
ModSecurity-nginx repo:

# pkg install modsecurity3 git


2. Grab the latest nginx source and ModSecurity-nginx repo:

$ fetch 'http://nginx.org/download/nginx-1.14.2.tar.gz'
$ tar -zxvf nginx-1.14.2.tar.gz
$ git clone --depth 1 https://github.com/SpiderLabs/ModSecurity-nginx.git
$ cd nginx-1.14.2


3. Compile nginx, adding support for the ModSecurity3-nginx connector as a 
dynamic module. I’ve also added a variety of other FreeBSD-specific 
configuration directives and/or compilation/linking hardening used by nginx 
upstream in their Linux repositories:

$ ./configure --with-compat --add-dynamic-module=../ModSecurity-nginx 
--prefix=/usr/local/etc/nginx --with-cc-opt='-g -O2 -fstack-protector-strong 
-Wformat -Werror=format-security -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -I 
/usr/local/include' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro 
-Wl,-z,now -fPIC -L /usr/local/lib' --conf-path=/usr/local/etc/nginx/nginx.conf 
--sbin-path=/usr/local/sbin/nginx --pid-path=/var/run/nginx.pid 
--error-log-path=/var/log/nginx/error.log --user=www --group=www 
--modules-path=/usr/local/libexec/nginx --with-file-aio --with-threads 
--without-mail_imap_module --without-mail_pop3_module 
--without-mail_smtp_module --with-mail_ssl_module 
--http-client-body-temp-path=/var/tmp/nginx/client_body_temp 
--http-fastcgi-temp-path=/var/tmp/nginx/fastcgi_temp 
--http-proxy-temp-path=/var/tmp/nginx/proxy_temp 
--http-scgi-temp-path=/var/tmp/nginx/scgi_temp 
--http-uwsgi-temp-path=/var/tmp/nginx/uwsgi_temp 
--http-log-path=/var/log/nginx/access.log --with-http_addition_module 
--with-http_auth_request_module --with-http_flv_module 
--with-http_gunzip_module --with-http_gzip_static_module 
--with-http_random_index_module --with-http_realip_module --with-pcre 
--with-http_secure_link_module --with-http_slice_module --with-http_ssl_module 
--with-http_stub_status_module --with-http_sub_module --with-http_v2_module 
--with-stream_ssl_module --with-mail=dynamic --with-stream=dynamic

$ make
$ sudo make install


4. The above step should have created ngx_http_modsecurity_module.so under the 
nginx source directory, and installed it into /usr/local/libexec/nginx, at 
which point the load_module directive in the nginx configuration should work 
fine, and you can move on to ruleset configuration. FYI, all of the above just 
follows the ~second half of 
<https://www.nginx.com/blog/compiling-and-installing-modsecurity-for-open-source-nginx/>,
 after taking care of the prerequisites with FreeBSD packages instead. Like I 
said, you could probably relatively easily hack the nginx port to add in the 
integration of ModSecurity3-nginx if you care about that more than keeping 
up-to-date with nginx source separately, but then you’d have to avoid 
overwriting the port – YMMV.


Thanks,
—
Matt Garber

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