SSH/SSL 源码编译安装简易操作说明
环境：CentOS 6.7
安全加固需求，由于某盟扫描系统主机有SSL系列漏洞，客户要求必须修复；
解决方案：将SSH/SSL升级到最新版本，删除SSL旧版本（实测不删除旧版本某盟扫描无法通过）。
当前版本：OpenSSH_5.3p1, OpenSSL 1.0.1e-fips
当前最新版本：OpenSSH_7.3p1, OpenSSL 1.0.2h
1.查看SSH/SSL当前版本
查看SSH/SSL当前版本：
ssh -V
openssl version
```
[root@test0823 ~]# ssh -V
OpenSSH_5.3p1, OpenSSL 1.0.1e-fips 11 Feb 2013
[root@test0823 ssh]# openssl version
OpenSSL 1.0.1e-fips 11 Feb 2013
备份ssh配置文件：
tar zcvf /etc/ssh.tar.gz /etc/ssh/
[root@test0823 ~]# tar zcvf /etc/ssh.tar.gz /etc/ssh/
ssh/
ssh/ssh_host_dsa_key.pub
ssh/ssh_host_rsa_key.pub
ssh/ssh_host_rsa_key
ssh/sshd_config
ssh/ssh_config
ssh/moduli
ssh/ssh_host_dsa_key
ssh/ssh_host_key.pub
ssh/ssh_host_key
<h1 id="2">2.下载最新的SSH/SSL</h1>
**目前最新版本：**
OpenSSH_7.3p1, OpenSSL 1.0.2h
**本次安装介质：**
链接: http://pan.baidu.com/s/1eRW3ytc 密码: 46sy
**SSH/SSL安装配置参考：**
SSL安装：
参考 http://www.linuxfromscratch.org/blfs/view/svn/postlfs/openssl.html
SSH安装：
参考 http://www.linuxfromscratch.org/blfs/view/svn/postlfs/openssh.html
<h1 id="3">3.源码编译安装SSL</h1>
本次测试所有源码包均默认上传到服务器的/root目录下。
需要先安装SSL，再安装SSH
## 3.1 解压SSL源码包 ##
[root@test0823 ~]# tar -zxvf openssl-1.0.2h.tar.gz
[root@test0823 ~]# cd openssl-1.0.2h
## 3.2 配置并编译 ##
复制下面的命令执行：
./config --prefix=/usr
--openssldir=/etc/ssl
--libdir=lib
shared
zlib-dynamic &&
make depend &&
make
操作如下：
[root@test0823 openssl-1.0.2h]# ./config --prefix=/usr \
--openssldir=/etc/ssl \
--libdir=lib \
shared \
zlib-dynamic &&
make depend &&
make
## 3.3 安装SSL ##
复制下面的命令执行：
make MANDIR=/usr/share/man MANSUFFIX=ssl install &&
install -dv -m755 /usr/share/doc/openssl-1.0.2h &&
cp -vfr doc/* /usr/share/doc/openssl-1.0.2h
操作如下：
[root@test0823 openssl-1.0.2h]# make MANDIR=/usr/share/man MANSUFFIX=ssl install &&
install -dv -m755 /usr/share/doc/openssl-1.0.2h &&
cp -vfr doc/* /usr/share/doc/openssl-1.0.2h
## 3.4 验证SSL版本 ##
openssl version
操作如下：
[root@test0823 openssl-1.0.2h]# openssl version
OpenSSL 1.0.2h 3 May 2016
[root@test0823 openssl-1.0.2h]# ssh -V
OpenSSH_5.3p1, OpenSSL 1.0.1e-fips 11 Feb 2013
<h1 id="4">4.源码编译安装SSH</h1>
## 4.1 解压SSH源码包 ##
[root@test0823 ~]# tar -zxvf openssh-7.3p1.tar.gz
[root@test0823 ~]# cd openssh-7.3p1
## 4.2 配置 ##
### 4.2.1 配置前准备 ###
复制下面的命令执行：
install -v -m700 -d /var/lib/sshd &&
chown -v root:sys /var/lib/sshd &&
groupadd -g 50 sshd &&
useradd -c 'sshd PrivSep'
-d /var/lib/sshd
-g sshd
-s /bin/false
-u 50 sshd
操作如下：
[root@test0823 openssh-7.3p1]# install -v -m700 -d /var/lib/sshd &&
chown -v root:sys /var/lib/sshd &&
groupadd -g 50 sshd &&
useradd -c 'sshd PrivSep'
-d /var/lib/sshd
-g sshd
-s /bin/false
-u 50 sshd
### 4.2.2 配置并编译 ###
复制下面的命令执行：
./configure --prefix=/usr
--sysconfdir=/etc/ssh
--with-md5-passwords
--with-privsep-path=/var/lib/sshd &&
make
操作如下：
[root@test0823 openssh-7.3p1]# ./configure --prefix=/usr \
--sysconfdir=/etc/ssh \
--with-md5-passwords \
--with-privsep-path=/var/lib/sshd &&
make
## 4.3 安装SSH ##
复制下面的命令执行：
make install &&
install -v -m755 contrib/ssh-copy-id /usr/bin &&
install -v -m644 contrib/ssh-copy-id.1
/usr/share/man/man1 &&
install -v -m755 -d /usr/share/doc/openssh-7.3p1 &&
install -v -m644 INSTALL LICENCE OVERVIEW README*
/usr/share/doc/openssh-7.3p1
操作如下：
[root@test0823 openssh-7.3p1]# make install &&
install -v -m755 contrib/ssh-copy-id /usr/bin &&
install -v -m644 contrib/ssh-copy-id.1
/usr/share/man/man1 &&
install -v -m755 -d /usr/share/doc/openssh-7.3p1 &&
install -v -m644 INSTALL LICENCE OVERVIEW README*
/usr/share/doc/openssh-7.3p1
## 4.4 验证SSH版本 ##
[root@test0823 openssh-7.3p1]# ssh -V
OpenSSH_7.3p1, OpenSSL 1.0.2h 3 May 2016
## 4.5 重启sshd服务 ##
将之前的sshd重命名备份，做一个sshd的软连接：
mv /usr/sbin/sshd /usr/sbin/sshd.OFF
ln -s /root/openssh-7.3p1/sshd /usr/sbin/sshd
使用 service sshd restart 重启一下服务
[root@test0823 openssh-7.3p1]# service sshd restart
Stopping sshd: [ OK ]
Starting sshd: /etc/ssh/sshd_config line 81: Unsupported option GSSAPIAuthentication
/etc/ssh/sshd_config line 83: Unsupported option GSSAPICleanupCredentials
/etc/ssh/sshd_config line 97: Unsupported option UsePAM
[ OK ]
上面的报错并不影响sshd正常启动，为了不再显示上述提示，可以注释掉相关配置行：
vi /etc/ssh/sshd_config
注释掉 81，83，97 三行。
再次重启sshd服务就不会有那三行的提示报错。
允许root用户ssh登录（默认可能就是允许，如果不允许，可以在文件末尾追加下面的一行配置到配置文件，或者直接vi编辑修改）
echo "PermitRootLogin yes" >> /etc/ssh/sshd_config
<h1 id="5">5.删除SSL旧版本</h1>
之前没有删除旧版本的SSL,SSH是因为不了解相关联的程序，
但是最后扫描发现如果不删除旧版本的SSL，某盟的扫描依然会扫出SSL的系列漏洞。
查看rpm安装的openssl相关包：
rpm -qa|grep openssl
对旧版本的SSL（这里是openssl-1.0.1e-42.el6.x86_64）进行删除：
rpm -e openssl-1.0.1e-42.el6.x86_64
直接尝试删除会提示如下库文件的依赖：
[root@test0823 ~]# rpm -e openssl-1.0.1e-42.el6.x86_64
error: Failed dependencies:
libcrypto.so.10()(64bit) is needed by (installed) qt-1:4.6.2-28.el6_5.x86_64
libcrypto.so.10()(64bit) is needed by (installed) libarchive-2.8.3-4.el6_2.x86_64
libcrypto.so.10()(64bit) is needed by (installed) libssh2-1.4.2-1.el6_6.1.x86_64
libcrypto.so.10()(64bit) is needed by (installed) wget-1.12-5.el6_6.1.x86_64
libcrypto.so.10()(64bit) is needed by (installed) wpa_supplicant-1:0.7.3-6.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) bind-libs-32:9.8.2-0.37.rc1.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) bind-utils-32:9.8.2-0.37.rc1.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) mysql-libs-5.1.73-5.el6_6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) fipscheck-1.2.0-7.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) httpd-tools-2.2.15-45.el6.centos.x86_64
libcrypto.so.10()(64bit) is needed by (installed) cyrus-sasl-md5-2.1.23-15.el6_6.2.x86_64
libcrypto.so.10()(64bit) is needed by (installed) gnome-vfs2-2.24.2-6.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) ptlib-2.6.5-3.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) opal-3.6.6-4.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) python-libs-2.6.6-64.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) python-ldap-0:2.3.10-1.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) pyOpenSSL-0.13.1-2.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) net-snmp-libs-1:5.5-54.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) evolution-data-server-2.32.3-23.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) gstreamer-plugins-bad-free-0.10.19-3.el6_5.x86_64
libcrypto.so.10()(64bit) is needed by (installed) xorg-x11-server-Xorg-1.15.0-36.el6.centos.x86_64
libcrypto.so.10()(64bit) is needed by (installed) hplip-libs-3.14.6-3.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) ntpdate-4.2.6p5-5.el6.centos.x86_64
libcrypto.so.10()(64bit) is needed by (installed) ntp-4.2.6p5-5.el6.centos.x86_64
libcrypto.so.10()(64bit) is needed by (installed) certmonger-0.77.5-1.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) cyrus-sasl-2.1.23-15.el6_6.2.x86_64
libcrypto.so.10()(64bit) is needed by (installed) postfix-2:2.6.6-6.el6_5.x86_64
libcrypto.so.10()(64bit) is needed by (installed) hpijs-1:3.14.6-3.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) ekiga-3.2.6-4.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) gnome-vfs2-smb-2.24.2-6.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) tcpdump-14:4.0.0-5.20090921gitdf3cb4.2.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) vsftpd-2.2.2-14.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) openssh-5.3p1-111.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) openssh-server-5.3p1-111.el6.x86_64
libcrypto.so.10()(64bit) is needed by (installed) openssh-clients-5.3p1-111.el6.x86_64
libcrypto.so.10(OPENSSL_1.0.1)(64bit) is needed by (installed) pyOpenSSL-0.13.1-2.el6.x86_64
libcrypto.so.10(OPENSSL_1.0.1)(64bit) is needed by (installed) net-snmp-libs-1:5.5-54.el6.x86_64
libcrypto.so.10(OPENSSL_1.0.1)(64bit) is needed by (installed) ntpdate-4.2.6p5-5.el6.centos.x86_64
libcrypto.so.10(OPENSSL_1.0.1)(64bit) is needed by (installed) ntp-4.2.6p5-5.el6.centos.x86_64
libcrypto.so.10(OPENSSL_1.0.1)(64bit) is needed by (installed) postfix-2:2.6.6-6.el6_5.x86_64
libcrypto.so.10(OPENSSL_1.0.1)(64bit) is needed by (installed) openssh-5.3p1-111.el6.x86_64
libcrypto.so.10(OPENSSL_1.0.1)(64bit) is needed by (installed) openssh-server-5.3p1-111.el6.x86_64
libcrypto.so.10(OPENSSL_1.0.1)(64bit) is needed by (installed) openssh-clients-5.3p1-111.el6.x86_64
libcrypto.so.10(OPENSSL_1.0.1_EC)(64bit) is needed by (installed) certmonger-0.77.5-1.el6.x86_64
libcrypto.so.10(OPENSSL_1.0.1_EC)(64bit) is needed by (installed) postfix-2:2.6.6-6.el6_5.x86_64
libcrypto.so.10(OPENSSL_1.0.1_EC)(64bit) is needed by (installed) openssh-5.3p1-111.el6.x86_64
libcrypto.so.10(OPENSSL_1.0.1_EC)(64bit) is needed by (installed) openssh-server-5.3p1-111.el6.x86_64
libcrypto.so.10(OPENSSL_1.0.1_EC)(64bit) is needed by (installed) openssh-clients-5.3p1-111.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) qt-1:4.6.2-28.el6_5.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) libssh2-1.4.2-1.el6_6.1.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) wget-1.12-5.el6_6.1.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) wpa_supplicant-1:0.7.3-6.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) bind-libs-32:9.8.2-0.37.rc1.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) mysql-libs-5.1.73-5.el6_6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) httpd-tools-2.2.15-45.el6.centos.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) cyrus-sasl-md5-2.1.23-15.el6_6.2.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) python-libs-2.6.6-64.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) pyOpenSSL-0.13.1-2.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) net-snmp-libs-1:5.5-54.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) gstreamer-plugins-bad-free-0.10.19-3.el6_5.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) xorg-x11-server-Xorg-1.15.0-36.el6.centos.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) ntpdate-4.2.6p5-5.el6.centos.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) ntp-4.2.6p5-5.el6.centos.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) certmonger-0.77.5-1.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) cyrus-sasl-2.1.23-15.el6_6.2.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) postfix-2:2.6.6-6.el6_5.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) tcpdump-14:4.0.0-5.20090921gitdf3cb4.2.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) vsftpd-2.2.2-14.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) openssh-5.3p1-111.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) openssh-server-5.3p1-111.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by (installed) openssh-clients-5.3p1-111.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) qt-1:4.6.2-28.el6_5.x86_64
libssl.so.10()(64bit) is needed by (installed) libssh2-1.4.2-1.el6_6.1.x86_64
libssl.so.10()(64bit) is needed by (installed) wget-1.12-5.el6_6.1.x86_64
libssl.so.10()(64bit) is needed by (installed) wpa_supplicant-1:0.7.3-6.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) mysql-libs-5.1.73-5.el6_6.x86_64
libssl.so.10()(64bit) is needed by (installed) httpd-tools-2.2.15-45.el6.centos.x86_64
libssl.so.10()(64bit) is needed by (installed) gnome-vfs2-2.24.2-6.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) ptlib-2.6.5-3.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) opal-3.6.6-4.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) python-libs-2.6.6-64.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) python-ldap-0:2.3.10-1.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) pyOpenSSL-0.13.1-2.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) evolution-data-server-2.32.3-23.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) gstreamer-plugins-bad-free-0.10.19-3.el6_5.x86_64
libssl.so.10()(64bit) is needed by (installed) postfix-2:2.6.6-6.el6_5.x86_64
libssl.so.10()(64bit) is needed by (installed) ekiga-3.2.6-4.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) gnome-vfs2-smb-2.24.2-6.el6.x86_64
libssl.so.10()(64bit) is needed by (installed) vsftpd-2.2.2-14.el6.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by (installed) qt-1:4.6.2-28.el6_5.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by (installed) wget-1.12-5.el6_6.1.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by (installed) wpa_supplicant-1:0.7.3-6.el6.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by (installed) mysql-libs-5.1.73-5.el6_6.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by (installed) httpd-tools-2.2.15-45.el6.centos.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by (installed) python-libs-2.6.6-64.el6.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by (installed) pyOpenSSL-0.13.1-2.el6.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by (installed) postfix-2:2.6.6-6.el6_5.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by (installed) vsftpd-2.2.2-14.el6.x86_64
openssl is needed by (installed) postfix-2:2.6.6-6.el6_5.x86_64
记录好依赖的这两个库文件
libcrypto.so.10
libssl.so.10
然后忽略依赖删除：
rpm -e --nodeps openssl-1.0.1e-42.el6.x86_64
做新的软连接映射：
[root@test0823 openssl-1.0.2h]# ln -s /root/openssl-1.0.2h/libssl.so.1.0.0 /usr/lib64/libssl.so.10
[root@test0823 openssl-1.0.2h]# ln -s /root/openssl-1.0.2h/libcrypto.so.1.0.0 /usr/lib64/libcrypto.so.10
如果是最后删除的openssl，那么还需要注意openssl软连接的情况，如下：
[root@test0823 apps]# ln -s /root/openssl-1.0.2h/apps/openssl /usr/bin/openssl
然后再次扫描已经没有SSL相关漏洞了。
<h1 id="6">6.写在后面</h1>
我的专业不是SA，对Linux的编译安装了解也不多，所以这个加固过程中不免有所纰漏或错误，欢迎内行指出供大家一起参考学习。
另外感谢网友：游荡 早期提供给我的ssh安装说明参考。
感谢www.linuxfromscratch.org网站提供的SSH/SSL安装操作说明。SSH/SSL 源码编译安装简易操作说明的更多相关文章
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