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linux的基线检查脚本

发表于:2022-12-09 作者:安全数据网编辑
编辑最后更新 2022年12月09日,本篇内容主要讲解"linux的基线检查脚本",感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习"linux的基线检查脚本"吧!#! /bin/bash #vesi

本篇内容主要讲解"linux的基线检查脚本",感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习"linux的基线检查脚本"吧!

#! /bin/bash #vesion 1.0#author by  (魔法剑客)ipadd=`ifconfig -a | grep Bcast | awk -F "[ :]+" '{print $4}' | tr "\n" "_"`cat <> "/tmp/${ipadd}_checkResult.txt"user_id=`whoami`echo "当前扫描用户:${user_id}" >> "/tmp/${ipadd}_checkResult.txt"scanner_time=`date '+%Y-%m-%d %H:%M:%S'`echo "当前扫描时间:${scanner_time}" >> "/tmp/${ipadd}_checkResult.txt"echo "***************************"echo "账号策略检查中..."echo "***************************"#编号:SBL-Linux-02-01-01 #项目:帐号与口令-用户口令设置#合格:Y;不合格:N#不合格地方passmax=`cat /etc/login.defs | grep PASS_MAX_DAYS | grep -v ^# | awk '{print $2}'`passmin=`cat /etc/login.defs | grep PASS_MIN_DAYS | grep -v ^# | awk '{print $2}'`passlen=`cat /etc/login.defs | grep PASS_MIN_LEN | grep -v ^# | awk '{print $2}'`passage=`cat /etc/login.defs | grep PASS_WARN_AGE | grep -v ^# | awk '{print $2}'`echo "SBL-Linux-02-01-01:" >> "/tmp/${ipadd}_checkResult.txt"if [ $passmax -le 90 -a $passmax -gt 0 ];then  echo "Y:口令生存周期为${passmax}天,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:口令生存周期为${passmax}天,不符合要求,建议设置不大于90天" >> "/tmp/${ipadd}_checkResult.txt"fiif [ $passmin -ge 6 ];then  echo "Y:口令更改最小时间间隔为${passmin}天,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:口令更改最小时间间隔为${passmin}天,不符合要求,建议设置大于等于6天" >> "/tmp/${ipadd}_checkResult.txt"fiif [ $passlen -ge 8 ];then  echo "Y:口令最小长度为${passlen},符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:口令最小长度为${passlen},不符合要求,建议设置最小长度大于等于8" >> "/tmp/${ipadd}_checkResult.txt"fiif [ $passage -ge 30 -a $passage -lt $passmax ];then  echo "Y:口令过期警告时间天数为${passage},符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:口令过期警告时间天数为${passage},不符合要求,建议设置大于等于30并小于口令生存周期" >> /"/tmp/${ipadd}_checkResult.txt"fiecho "***************************"echo "账号是否会主动注销检查中..."echo "***************************"checkTimeout=$(cat /etc/profile | grep TMOUT | awk -F[=] '{print $2}')if [ $? -eq 0 ];then  TMOUT=`cat /etc/profile | grep TMOUT | awk -F[=] '{print $2}'`  if [ $TMOUT -le 600 -a $TMOUT -ge 10 ];then    echo "Y:账号超时时间${TMOUT}秒,符合要求" >> "/tmp/${ipadd}_checkResult.txt"  else    echo "N:账号超时时间${TMOUT}秒,不符合要求,建议设置小于600秒" >> "/tmp/${ipadd}_checkResult.txt"  fielse  echo "N:账号超时不存在自动注销,不符合要求,建议设置小于600秒" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-02-01-02 #项目:帐号与口令-root用户远程登录限制#合格:Y;不合格:N#不合格地方echo "***************************"echo "检查root用户是否能远程登录限制..."echo "***************************"echo "SBL-Linux-02-01-02:" >> "/tmp/${ipadd}_checkResult.txt"remoteLogin=$(cat /etc/ssh/sshd_config | grep -v ^# |grep "PermitRootLogin no")if [ $? -eq 0 ];then  echo "Y:已经设置远程root不能登陆,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:已经设置远程root能登陆,不符合要求,建议/etc/ssh/sshd_config添加PermitRootLogin no" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-02-01-03#项目:帐号与口令-检查是否存在除root之外UID为0的用户#合格:Y;不合格:N#不合格地方#查找非root账号UID为0的账号echo "SBL-Linux-02-01-03:" >> "/tmp/${ipadd}_checkResult.txt"UIDS=`awk -F[:] 'NR!=1{print $3}' /etc/passwd`flag=0for i in $UIDSdo  if [ $i = 0 ];then    echo "N:存在非root账号的账号UID为0,不符合要求" >> "/tmp/${ipadd}_checkResult.txt"  else    flag=1  fidoneif [ $flag = 1 ];then  echo "Y:不存在非root账号的账号UID为0,符合要求" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-02-01-04#项目:帐号与口令-检查telnet服务是否开启#合格:Y;不合格:N#不合格地方#检查telnet是否开启echo "SBL-Linux-02-01-04:" >> "/tmp/${ipadd}_checkResult.txt"telnetd=`cat /etc/xinetd.d/telnet | grep disable | awk '{print $3}'`if [ "$telnetd"x = "yes"x ]; then  echo "N:检测到telnet服务开启,不符合要求,建议关闭telnet" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-02-01-05#项目:帐号与口令-root用户环境变量的安全性#合格:Y;不合格:N#不合格地方#检查目录权限是否为777echo "SBL-Linux-02-01-05:" >> "/tmp/${ipadd}_checkResult.txt"dirPri=$(find $(echo $PATH | tr ':' ' ') -type d \( -perm -0777 \) 2> /dev/null)if [  -z "$dirPri" ] then  echo "Y:目录权限无777的,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:文件${dirPri}目录权限为777的,不符合要求。" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-02-01-06#项目:帐号与口令-远程连接的安全性配置#合格:Y;不合格:N#不合格地方echo "SBL-Linux-02-01-06:" >> "/tmp/${ipadd}_checkResult.txt"fileNetrc=`find / -xdev -mount -name .netrc -print 2> /dev/null`if [  -z "${fileNetrc}" ];then  echo "Y:不存在.netrc文件,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:存在.netrc文件,不符合要求" >> "/tmp/${ipadd}_checkResult.txt"fifileRhosts=`find / -xdev -mount -name .rhosts -print 2> /dev/null`if [ -z "$fileRhosts" ];then  echo "Y:不存在.rhosts文件,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:存在.rhosts文件,不符合要求" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-02-01-07#项目:帐号与口令-用户的umask安全配置#合格:Y;不合格:N#不合格地方#检查umask设置echo "SBL-Linux-02-01-07:" >> "/tmp/${ipadd}_checkResult.txt"umask1=`cat /etc/profile | grep umask | grep -v ^# | awk '{print $2}'`umask2=`cat /etc/csh.cshrc | grep umask | grep -v ^# | awk '{print $2}'`umask3=`cat /etc/bashrc | grep umask | grep -v ^# | awk 'NR!=1{print $2}'`flags=0for i in $umask1do  if [ $i != "027" ];then    echo "N:/etc/profile文件中所所设置的umask为${i},不符合要求,建议设置为027" >> "/tmp/${ipadd}_checkResult.txt"    flags=1    break  fidoneif [ $flags == 0 ];then  echo "Y:/etc/profile文件中所设置的umask为${i},符合要求" >> "/tmp/${ipadd}_checkResult.txt"fi flags=0for i in $umask2do  if [ $i != "027" ];then    echo "N:/etc/csh.cshrc文件中所所设置的umask为${i},不符合要求,建议设置为027" >> "/tmp/${ipadd}_checkResult.txt"    flags=1    break  fidone  if [ $flags == 0 ];then  echo "Y:/etc/csh.cshrc文件中所设置的umask为${i},符合要求" >> "/tmp/${ipadd}_checkResult.txt"fiflags=0for i in $umask3do  if [ $i != "027" ];then    echo "N:/etc/bashrc文件中所设置的umask为${i},不符合要求,建议设置为027" >> "/tmp/${ipadd}_checkResult.txt"    flags=1    break  fidoneif [ $flags == 0 ];then  echo "Y:/etc/bashrc文件中所设置的umask为${i},符合要求" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-02-01-08#项目:帐号与口令-grub和lilo密码是否设置检查#合格:Y;不合格:N#不合格地方#grub和lilo密码是否设置检查echo "SBL-Linux-02-01-08:" >> "/tmp/${ipadd}_checkResult.txt"grubfile=$(cat /etc/grub.conf | grep password)if [ $? -eq 0 ];then  echo "Y:已设置grub密码,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:没有设置grub密码,不符合要求,建议设置grub密码" >> "/tmp/${ipadd}_checkResult.txt"fililo=$(cat /etc/lilo.conf | grep password)if [ $? -eq 0 ];then  echo "Y:已设置lilo密码,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:没有设置lilo密码,不符合要求,建议设置lilo密码" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-02-02-01#项目:文件系统-重要目录和文件的权限设置#合格:Y;不合格:N#不合格地方echo "SBL-Linux-02-02-01:" >> "/tmp/${ipadd}_checkResult.txt"echo "***************************"echo "检查重要文件权限中..."echo "***************************"file1=`ls -l /etc/passwd | awk '{print $1}'`file2=`ls -l /etc/shadow | awk '{print $1}'`file3=`ls -l /etc/group | awk '{print $1}'`file4=`ls -l /etc/securetty | awk '{print $1}'`file5=`ls -l /etc/services | awk '{print $1}'`file6=`ls -l /etc/xinetd.conf | awk '{print $1}'`file7=`ls -l /etc/grub.conf | awk '{print $1}'`file8=`ls -l /etc/lilo.conf | awk '{print $1}'`#检测文件权限为400的文件if [ $file2 = "-r--------" ];then  echo "Y:/etc/shadow文件权限为400,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:/etc/shadow文件权限不为400,不符合要求,建议设置权限为400" >> "/tmp/${ipadd}_checkResult.txt"fi#检测文件权限为600的文件if [ $file4 = "-rw-------" ];then  echo "Y:/etc/security文件权限为600,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:/etc/security文件权限不为600,不符合要求,建议设置权限为600" >> "/tmp/${ipadd}_checkResult.txt"fiif [ $file6 = "-rw-------" ];then  echo "Y:/etc/xinetd.conf文件权限为600,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:/etc/xinetd.conf文件权限不为600,不符合要求,建议设置权限为600" >> "/tmp/${ipadd}_checkResult.txt"fiif [ $file7 = "-rw-------" ];then  echo "Y:/etc/grub.conf文件权限为600,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:/etc/grub.conf文件权限不为600,不符合要求,建议设置权限为600" >> "/tmp/${ipadd}_checkResult.txt"fiif [ -f /etc/lilo.conf ];then  if [ $file8 = "-rw-------" ];then    echo "Y:/etc/lilo.conf文件权限为600,符合要求" >> "/tmp/${ipadd}_checkResult.txt"  else    echo "N:/etc/lilo.conf文件权限不为600,不符合要求,建议设置权限为600" >> "/tmp/${ipadd}_checkResult.txt"  fi  else  echo "N:/etc/lilo.conf文件夹不存在"fi#检测文件权限为644的文件if [ $file1 = "-rw-r--r--" ];then  echo "Y:/etc/passwd文件权限为644,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:/etc/passwd文件权限不为644,不符合要求,建议设置权限为644" >> "/tmp/${ipadd}_checkResult.txt"fiif [ $file5 = "-rw-r--r--" ];then  echo "Y:/etc/services文件权限为644,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:/etc/services文件权限不为644,不符合要求,建议设置权限为644" >> "/tmp/${ipadd}_checkResult.txt"fiif [ $file3 = "-rw-r--r--" ];then  echo "Y:/etc/group文件权限为644,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:/etc/group文件权限不为644,不符合要求,建议设置权限为644" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-02-02-02#项目:文件系统-查找未授权的SUID/SGID文件#合格:Y;不合格:N#不合格地方echo "SBL-Linux-02-02-02:" >> "/tmp/${ipadd}_checkResult.txt"unauthorizedfile=`find / \( -perm -04000 -o -perm -02000 \) -type f `echo "C:文件${unauthorizedfile}设置了SUID/SGID,请检查是否授权" >> "/tmp/${ipadd}_checkResult.txt"#编号:SBL-Linux-02-02-03#项目:文件系统-检查任何人都有写权限的目录#合格:Y;不合格:N;检查:C#不合格地方echo "SBL-Linux-02-02-03:" >> "/tmp/${ipadd}_checkResult.txt"checkWriteDre=$(find / -xdev -mount -type d \( -perm -0002 -a ! -perm -1000 \) 2> /dev/null)if [  -z "${checkWriteDre}" ];then  echo "Y:不存在任何人都有写权限的目录,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:${checkWriteDre}目录任何人都可以写,不符合要求" >> "/tmp/${ipadd}_checkResult.txt"fi  #编号:SBL-Linux-02-02-04#项目:文件系统-检查任何人都有写权限的文件#合格:Y;不合格:N;检查:C#不合格地方echo "SBL-Linux-02-02-04:" >> "/tmp/${ipadd}_checkResult.txt"checkWriteFile=$(find / -xdev -mount -type f \( -perm -0002 -a ! -perm -1000 \) 2> /dev/null)if [  -z "${checkWriteFile}" ];then  echo "Y:不存在任何人都有写权限的目录,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:${checkWriteFile}目录任何人都可以写,不符合要求" >> "/tmp/${ipadd}_checkResult.txt"fi  #编号:SBL-Linux-02-02-05#项目:文件系统-检查异常隐含文件#合格:Y;不合格:N;检查:C#不合格地方echo "SBL-Linux-02-02-05:" >> "/tmp/${ipadd}_checkResult.txt"hideFile=$(find / -xdev -mount \( -name "..*" -o -name "...*" \) 2> /dev/null)if [  -z "${hideFile}" ];then  echo "Y:不存在隐藏文件,符合要求" >> "/tmp/${ipadd}_checkResult.txt"else  echo "N:${hideFile}是隐藏文件,建议审视" >> "/tmp/${ipadd}_checkResult.txt"fi  #编号:SBL-Linux-03-01-01 #项目:日志审计-syslog登录事件记录#合格:Y;不合格:N;检查:C#不合格地方echo "SBL-Linux-03-01-01:" >> "/tmp/${ipadd}_checkResult.txt"recodeFile=$(cat /etc/syslog.conf)if [  ! -z "${recodeFile}" ];then   logFile=$(cat /etc/syslog.conf | grep -V ^# | grep authpriv.*)  if [ ! -z "${logFile}" ];then    echo "Y:存在保存authpirv的日志文件" >> "/tmp/${ipadd}_checkResult.txt"  else    echo "N:不存在保存authpirv的日志文件" >> "/tmp/${ipadd}_checkResult.txt"  fielse  echo "N:不存在/etc/syslog.conf文件,建议对所有登录事件都记录" >> "/tmp/${ipadd}_checkResult.txt"fi  #编号:SBL-Linux-03-01-02#项目:系统文件-检查日志审核功能是否开启#合格:Y;不合格:N;检查:Cecho "SBL-Linux-03-01-02:" >> "/tmp/${ipadd}_checkResult.txt"auditdStatus=$(service auditd status 2> /dev/null)if [ $? = 0 ];then  echo "Y:系统日志审核功能已开启,符合要求" >> "/tmp/${ipadd}_checkResult.txt"fiif [ $? = 3 ];then  echo "N:系统日志审核功能已关闭,不符合要求,建议service auditd start开启" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-04-01-01 #项目:系统文件-系统core dump状态#合格:Y;不合格:N;检查:Cecho "SBL-Linux-04-01-01:" >> "/tmp/${ipadd}_checkResult.txt"limitsFile=$(cat /etc/security/limits.conf | grep -V ^# | grep core)if [ $? -eq 0 ];then  soft=`cat /etc/security/limits.conf | grep -V ^# | grep core | awk {print $2}`  for i in $soft  do    if [ "$i"x = "soft"x ];then      echo "Y:* soft core 0 已经设置" >> "/tmp/${ipadd}_checkResult.txt"    fi    if [ "$i"x = "hard"x ];then      echo "Y:* hard core 0 已经设置" >> "/tmp/${ipadd}_checkResult.txt"    fi  doneelse   echo "N:没有设置core,建议在/etc/security/limits.conf中添加* soft core 0和* hard core 0" >> "/tmp/${ipadd}_checkResult.txt"fi#编号:SBL-Linux-04-01-02#项目:系统文件-检查磁盘动态空间,是否大于等于80%#合格:Y;不合格:N;检查:C#echo "SBL-Linux-04-01-02:" >> "/tmp/${ipadd}_checkResult.txt"space=$(df -h | awk -F "[ %]+" 'NR!=1{print $5}')for i in $spacedo  if [ $i -ge 80 ];then    echo "C:警告!磁盘存储容量大于80%,建议扩充磁盘容量或者删除垃圾文件" >> "/tmp/${ipadd}_checkResult.txt"  fidone

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