Nginx 拒接服务漏洞(CVE-2016-0747)整改
Nginx的拒绝服务漏洞主要影响版本为1.10.3之前的版本,为不影响原有nginx的使用,且为避免修改其它配置文件,可以通过编译nginx最新版本的执行文件去替换旧的执行文件,文中的场景为由nginx1.8.0版本平滑升级到1.10.3版本,安装过程如下:
1、 nginx安装依赖如下安装包:
openssl:http://www.openssl.org/source/openssl-fips-2.0.9.tar.gz
zlib:http://zlib.net/zlib-1.2.8.tar.gz
pcre:ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.38.tar.gz
2、查看nginx的当前版本
进入 /sur/sbin/目录下执行如下命令:
./nginx -V 查看版本
[root@push1 sbin]# ./nginx -V
nginx version: nginx/1.9.9
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC)
built with OpenSSL 1.0.1p 9 Jul 2015
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-mail --with-mail_ssl_module --with-file-aio --with-ipv6 --with-cc-opt='-O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --with-openssl=/usr/local/src/openssl-1.0.1p
2下载nginx1.10.3版本
下载地址:http://nginx.org/download/nginx-1.10.3.tar.gz
上传安装包到opt目录下
解压 tar –zxvf nginx-1.10.3.tar.gz
进入目录: cd nginx-1.10.3
指定配置信息:./configure --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-mail --with-mail_ssl_module --with-file-aio --with-ipv6 --with-cc-opt='-O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --with-openssl=/usr/local/src/openssl-1.0.1p
注意:prefix=的内容为步骤2查看版本显示的内容
3、编译:make,不需要make install
4、备份原来的nginx的可执行文件,进入 /usr/sbin执行
mv nginx nginx.old
5、拷贝新编译的执行文件代替旧的文件
5、如果报text file busy 需先停掉nginx,命令如下:
pkill -int nginx
6、再次查看版本信息
[root@push1 sbin]# ./nginx -V
nginx version: nginx/1.10.3
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC)
built with OpenSSL 1.0.1p 9 Jul 2015
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-mail --with-mail_ssl_module --with-file-aio --with-ipv6 --with-cc-opt='-O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --with-openssl=/usr/local/src/openssl-1.0.1p
7、升级成功,启动nginx
Service nginx start