2016-02-18
下面這篇用 rpm 方式安裝 snort 其實比較快速簡便
[研究] Snort 2.9.8.0 安裝 + 快速安裝程式 (CentOS 7.2 x64)
http://shaurong.blogspot.com/2016/02/snort-2980-centos-72-x64.html
但是測試和 Barnyard 2.13 搭配有問題，所以又研究用 .tar.gz 方式安裝 snort，寫了這篇。
( 因為 rpm 安裝的沒有 /usr/local/src/snort-2.9.8.0/rpm/snort.sysconfig 檔案，是否還有其他問題不知)
官方網站
https://www.snort.org/
連上
http://dl.fedoraproject.org/pub/epel/7/x86_64/e/
看看 epel-release-7-5.noarch.rpm 是否存在，或更新版本為
epel-release-7-6.noarch.rpm
epel-release-7-7.noarch.rpm
...
下方的快速安裝程式的這一行或許要修改
rpm -Uvh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
參考
http://shaurong.blogspot.tw/2012/12/snort-294targz-centos-63-x86.html
http://manual.snort.org/
http://www.snort.org/docs
http://s3.amazonaws.com/snort-org/www/assets/202/snort2953_centos6x.pdf
snort-2.9.8.0.tar.gz 和 daq-2.0.6.tar.gz 下載網址
http://www.snort.org/
https://www.snort.org/downloads/snort/daq-2.0.6-1.centos7.x86_64.rpm
https://www.snort.org/downloads/snort/daq-2.0.6.tar.gz
https://www.snort.org/downloads/snort/snort-2.9.8.0.tar.gz
libdnet-1.11.tar.gz 下載網址
http://libdnet.sourceforge.net/
PS：後來發現這裡有 libdnet-1.12.tar.gz，官方網站搬家？
https://code.google.com/p/libdnet/downloads/list
rules 下載網址 (免費註冊，右上角點 Sign In，登入後才能下載)
http://www.snort.org/
https://www.snort.org/downloads/community/community-rules.tar.gz
https://www.snort.org/downloads/registered/snortrules-snapshot-2980.tar.gz
( 不可用 wget 下載，用瀏覽器下載後，用 WinSCP 丟到 CentOS 上)
Subscriber Release 是花錢訂閱才能下載的，跳過不看
Registered User Release 免費註冊，登入後才能下載
請自己手動下載下面檔案，放到 /usr/local/src 目錄
libdnet-1.12.tar.gz
daq-2.0.5.tar.gz
snort-2.9.8.0.tar.gz
snortrules-snapshot-2980.tar.gz
snort在版本2.9.3開始不再支援MySQL，好像可以靠 Barnyard2解決，ADOdb 和 BASE 小弟在本篇也暫不討論，有機會再說。
Database output is dead. R.I.P.
Wednesday, July 18, 2012
http://blog.snort.org/2012/07/database-output-is-dead-rip.html
http://www.securixlive.com/
https://github.com/firnsy/barnyard2
ADOdb 官方網站
http://adodb.sourceforge.net/
http://sourceforge.net/projects/adodb/files/adodb-php5-only/
(最後更新為 2015-12-27，檔案 adodb-520-for-php5 )
BASE 官方網站 (Basic Analysis and Security Engine)
http://base.secureideas.net/
http://sourceforge.net/projects/secureideas/files/BASE/
(最後更新為 v1.4.5 版 May 2010-03-05)
安裝參考
https://www.snort.org/documents
Getting SNORT working in CentOS 6.x/7.x and VirtualBox 4.x.x
先確認目前網路卡名稱
[root@localhost ~]# ifconfig eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.128.158 netmask 255.255.255.0 broadcast 192.168.128.255 inet6 fe80::20c:29ff:fed6:f1fd prefixlen 64 scopeid 0x20<link> ether 00:0c:29:d6:f1:fd txqueuelen 1000 (Ethernet) RX packets 677410 bytes 954720766 (910.4 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 340378 bytes 28929160 (27.5 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 94 bytes 5512 (5.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 94 bytes 5512 (5.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [root@localhost ~]# |
快速安裝程式內容(實際測試可用)，請先用 su root 切換成 root 執行
chmod +x snort2.9.8.0_centos7.2x64.sh
./snort2.9.8.0_centos7.2x64.sh
chmod +x snort2.9.8.0_centos7.2x64.sh
./snort2.9.8.0_centos7.2x64.sh
#!/bin/bash echo -e "\033[31m" echo -e "Program : snort2.9.8.0_centos7.2x64.sh " echo -e "snort-2.9.8.0.tar.gz Install Shell Script (CentOS 7.2 x64) " echo -e "by Shau-Rong Lu 2016-02-18 " echo -e "\033[0m" yum -y install gcc gcc-c++ flex bison zlib zlib-devel libpcap libpcap-devel pcre pcre-devel tcpdump libdnet libdnet-devel rpm -Uvh https://www.snort.org/downloads/snort/daq-2.0.6-1.centos7.x86_64.rpm cd /usr/local/src wget https://www.snort.org/downloads/snort/snort-2.9.8.0.tar.gz if [ ! -s snortrules-snapshot-2980.tar.gz]; then echo "Can not find /usr/local/src/snortrules-snapshot-2980.tar.gz" exit fi tar zxvf snort-2.9.8.0.tar.gz cd /usr/local/src/snort-2.9.8.0 ./configure make make install mkdir -p /etc/snort cd /usr/local/src tar xzvf /usr/local/src/snortrules-snapshot-2980.tar.gz -C /etc/snort touch /etc/snort/rules/white_list.rules /etc/snort/rules/black_list.rules groupadd -g 40000 snort useradd snort -d /var/log/snort -s /sbin/nologin -c SNORT_IDS -g snort cd /etc/snort chown -R snort:snort * chown -R snort:snort /var/log/snort cp /etc/snort/etc/* /etc/snort/. sed -i -e "s@var RULE_PATH@#var RULE_PATH@" /etc/snort/snort.conf sed -i -e "/var RULE_PATH/avar RULE_PATH /etc/snort/rules" /etc/snort/snort.conf cat /etc/snort/snort.conf | grep "var RULE_PATH" sed -i -e "s@var SO_RULE_PATH@#var SO_RULE_PATH@" /etc/snort/snort.conf sed -i -e "/var SO_RULE_PATH/avar SO_RULE_PATH /etc/snort/so_rules" /etc/snort/snort.conf cat /etc/snort/snort.conf | grep "var SO_RULE_PATH" sed -i -e "s@var PREPROC_RULE_PATH@#var PREPROC_RULE_PATH@" /etc/snort/snort.conf sed -i -e "/var PREPROC_RULE_PATH/avar PREPROC_RULE_PATH /etc/snort/preproc_rules" /etc/snort/snort.conf cat /etc/snort/snort.conf | grep "var PREPROC_RULE_PATH" sed -i -e "s@var WHITE_LIST_PATH@#var WHITE_LIST_PATH@" /etc/snort/snort.conf sed -i -e "/var WHITE_LIST_PATH/avar WHITE_LIST_PATH /etc/snort/rules" /etc/snort/snort.conf cat /etc/snort/snort.conf | grep "var WHITE_LIST_PATH" sed -i -e "s@var BLACK_LIST_PATH@#var BLACK_LIST_PATH@" /etc/snort/snort.conf sed -i -e "/var BLACK_LIST_PATH/avar BLACK_LIST_PATH /etc/snort/rules" /etc/snort/snort.conf cat /etc/snort/snort.conf | grep "var BLACK_LIST_PATH" mkdir -p /usr/local/lib/snort_dynamicrules chown -R snort:snort /usr/local/lib/snort_dynamicrules chmod -R 700 /usr/local/lib/snort_dynamicrules snort -T -c /etc/snort/snort.conf -i eno16777736 -g snort -u snort if [ "$?" != "0" ]; then echo "Snort Test Failed !" exit fi ps aux | grep snort # snort-2.9.8.0.tar.gz 中的 snortd 用了會失敗，所以下面自己做一個 #cp /usr/local/src/snort-2.9.8.0/rpm/snortd /etc/init.d/. #chmod +x /etc/init.d/snortd #cp /root/snort-2.9.8.0/rpm/snort.sysconfig /etc/sysconfig/snort #ln -s /usr/local/bin/snort /usr/sbin/snort mv /etc/init.d/snortd /etc/init.d/snortd.old echo '#!/bin/bash' > /etc/init.d/snortd echo "" >> /etc/init.d/snortd echo "# chkconfig: 345 99 01" >> /etc/init.d/snortd echo "# description: Snort startup script" >> /etc/init.d/snortd echo "# 345 - levels to configure" >> /etc/init.d/snortd echo "# 99 - startup order" >> /etc/init.d/snortd echo "# 01 - stop order" >> /etc/init.d/snortd echo "" >> /etc/init.d/snortd echo ". /etc/rc.d/init.d/functions " >> /etc/init.d/snortd #echo "INTERFACE=eth0" >> /etc/init.d/snortd echo "INTERFACE=eno16777736" >> /etc/init.d/snortd echo "" >> /etc/init.d/snortd echo "case \"\$1\" in " >> /etc/init.d/snortd echo "start)" >> /etc/init.d/snortd echo " echo -n \"Starting Snort: \"" >> /etc/init.d/snortd echo " daemon PCAP_FRAMES=max /usr/local/bin/snort -D -i \$INTERFACE -c /etc/snort/snort.conf" >> /etc/init.d/snortd echo " echo" >> /etc/init.d/snortd echo " ;;" >> /etc/init.d/snortd echo "" >> /etc/init.d/snortd echo "stop)" >> /etc/init.d/snortd echo " echo -n \"Stopping Snort: \"" >> /etc/init.d/snortd echo " killproc snort" >> /etc/init.d/snortd echo " echo" >> /etc/init.d/snortd echo " ;;" >> /etc/init.d/snortd echo "" >> /etc/init.d/snortd echo "restart)" >> /etc/init.d/snortd echo " \$0 stop" >> /etc/init.d/snortd echo " \$0 start" >> /etc/init.d/snortd echo " ;;" >> /etc/init.d/snortd echo "status)" >> /etc/init.d/snortd echo " status snort" >> /etc/init.d/snortd echo " ;;" >> /etc/init.d/snortd echo "*)" >> /etc/init.d/snortd echo " echo \"Usage: $0 {start|stop|restart|status}\"" >> /etc/init.d/snortd echo " exit 1" >> /etc/init.d/snortd echo " esac" >> /etc/init.d/snortd echo " exit 0" >> /etc/init.d/snortd chmod +x /etc/init.d/snortd chkconfig --add snortd chkconfig snortd on service snortd start # 確認 (用 service snortd status 的不夠可靠) ps aux | grep snort echo "You can service httpd restart, then use N-Stalker Free Edition (http://nstalker.com/products/free/download-free-edition) on MS-Windows to attack WebSite " echo "" echo "or Nikto (http://www.cirt.net/nikto2) on another Linux to attack WebSite" echo " wget http://www.cirt.net/nikto/nikto-current.tar.gz" echo " tar zxvf nikto-current.tar.gz" echo " cd nikto-*" echo " chmod +x nikto.pl" echo " ./nikto.pl -h xxx.xxx.xxx.xxx" |
看到下面訊息，表示快速安裝程式成功
[root@localhost snort]# snort -T -c /etc/snort/snort.conf -i eno16777736 -g snort -u snort ...(略) Snort successfully validated the configuration! Snort exiting [root@localhost snort]# |
測試 (啟動需要點時間)
[root@localhost snort]# service snortd start Starting snortd (via systemctl): [ OK ] [root@localhost snort]# service snortd status ◠snortd.service - SYSV: Snort startup script Loaded: loaded (/etc/rc.d/init.d/snortd) Active: active (running) since Thu 2016-02-18 14:09:25 CST; 4s ago Docs: man:systemd-sysv-generator(8) Process: 25956 ExecStop=/etc/rc.d/init.d/snortd stop (code=exited, status=0/SUCCESS) Process: 26110 ExecStart=/etc/rc.d/init.d/snortd start (code=exited, status=0/SUCCESS) CGroup: /system.slice/snortd.service └─26167 /usr/local/bin/snort -D -i eno16777736 -c /etc/snort/snort... Feb 18 14:09:25 localhost.localdomain snort[26167]: Preprocessor O... Feb 18 14:09:25 localhost.localdomain snort[26167]: Preprocessor O... Feb 18 14:09:25 localhost.localdomain snort[26167]: Preprocessor O... Feb 18 14:09:25 localhost.localdomain snort[26167]: Preprocessor O... Feb 18 14:09:25 localhost.localdomain snort[26167]: Preprocessor O... Feb 18 14:09:25 localhost.localdomain snort[26167]: Preprocessor O... Feb 18 14:09:25 localhost.localdomain snort[26167]: Preprocessor O... Feb 18 14:09:25 localhost.localdomain snort[26167]: Preprocessor O... Feb 18 14:09:25 localhost.localdomain snort[26167]: Preprocessor O... Feb 18 14:09:25 localhost.localdomain snort[26167]: Commencing packet process... Hint: Some lines were ellipsized, use -l to show in full.
[root@localhost snort]# ps aux | grep snort
root 26167 0.0 23.8 786532 446072 ? Ssl 14:09 0:00 /usr/local/bin/snort -D -i eno16777736 -c /etc/snort/snort.conf
root 26243 0.0 0.0 112644 960 pts/0 S+ 14:09 0:00 grep --color=auto snort
[root@localhost snort]#
|
準備當被攻擊主機
[root@localhost snort]# yum -y install httpd [root@localhost snort]# service httpd restart |
防火牆暫時關閉
[root@localhost ~]# service firewalld stop |
先看一下 snort 目前 log，其中 alert 為 0 byte
[root@localhost snort]# ls -al /var/log/snort total 20 drwx------. 3 snort snort 4096 Feb 18 14:16 . drwxr-xr-x. 20 root root 4096 Feb 18 14:17 .. -rw-r--r--. 1 root root 0 Feb 18 14:03 alert -rw-r--r--. 1 snort snort 18 Nov 20 13:02 .bash_logout -rw-r--r--. 1 snort snort 193 Nov 20 13:02 .bash_profile -rw-r--r--. 1 snort snort 231 Nov 20 13:02 .bashrc drwxr-xr-x. 4 snort snort 37 Feb 17 19:49 .mozilla -rw-------. 1 snort snort 0 Feb 18 14:04 snort_eno16777736.pid.lck -rw-------. 1 root root 0 Feb 18 14:03 snort.log.1455775427 -rw-------. 1 root root 0 Feb 18 14:16 snort.log.1455776207 [root@localhost snort]# |
另外找一台主機來攻擊 ( nikto 好像無法對自己攻擊，所以必須另外找一台)
192.168.128.133 是安裝 snort 主機
192.168.128.134 是安裝 nikto 主機
[root@localhost ~]# cd /usr/local [root@localhost ~]# wget http://www.cirt.net/nikto/nikto-current.tar.gz [root@localhost ~]# tar zxvf nikto-current.tar.gz [root@localhost ~]# cd nikto-* [root@localhost nikto-2.1.5]# chmod +x nikto.pl [root@localhost nikto-2.1.5]# ./nikto.pl -h 192.168.128.133 - ***** SSL support not available (see docs for SSL install) ***** - Nikto v2.1.5 --------------------------------------------------------------------------- + Target IP: 192.168.128.133 + Target Hostname: 192.168.128.133 + Target Port: 80 + Start Time: 2016-02-18 22:22:40 (GMT8) --------------------------------------------------------------------------- + Server: Apache/2.4.6 (CentOS) + Server leaks inodes via ETags, header found with file /, fields: 0x1321 0x5058a1e728280 + The anti-clickjacking X-Frame-Options header is not present. + Allowed HTTP Methods: OPTIONS, GET, HEAD, POST, TRACE + OSVDB-877: HTTP TRACE method is active, suggesting the host is vulnerable to XST + OSVDB-3268: /icons/: Directory indexing found. + OSVDB-3233: /icons/README: Apache default file found. + 6544 items checked: 0 error(s) and 6 item(s) reported on remote host + End Time: 2016-02-18 22:22:47 (GMT8) (7 seconds) --------------------------------------------------------------------------- + 1 host(s) tested |
回到原來安裝 snort 主機，可以看到 alert 檔案從 0 byte 變成不是 0 bytes，表示 snort 有正常運作
[root@localhost snort]# ls -al /var/log/snort total 48 drwx------. 3 snort snort 4096 Feb 18 14:16 . drwxr-xr-x. 20 root root 4096 Feb 18 14:17 .. -rw-r--r--. 1 root root 387 Feb 18 14:22 alert -rw-r--r--. 1 snort snort 18 Nov 20 13:02 .bash_logout -rw-r--r--. 1 snort snort 193 Nov 20 13:02 .bash_profile -rw-r--r--. 1 snort snort 231 Nov 20 13:02 .bashrc drwxr-xr-x. 4 snort snort 37 Feb 17 19:49 .mozilla -rw-------. 1 snort snort 0 Feb 18 14:04 snort_eno16777736.pid.lck -rw-------. 1 root root 0 Feb 18 14:03 snort.log.1455775427 -rw-------. 1 root root 22754 Feb 18 14:22 snort.log.1455776207 [root@localhost snort]# |
測試成功。
(完)
[研究] snort-2.9.8.0.tar.gz (CentOS 7.2 x64) 快速安裝程式
http://shaurong.blogspot.com/2016/02/snort-2980targz-centos-72-x64.html
[研究] Snort 2.9.8.0 安裝 + 快速安裝程式 (CentOS 7.2 x64)
http://shaurong.blogspot.com/2016/02/snort-2980-centos-72-x64.html
[研究] Snort 2.9.7.0 + Barnyard 2.13 安裝 (CentOS 6.6 x64) 快速安裝程式
http://shaurong.blogspot.com/2015/02/snort-2970-barnyard-213-centos-66-x64.html
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