Linux提权后获取敏感信息的方法与途径(3)

如果命令限制，你可以打出哪些突破它的限制？

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“共同”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]

http://www.91ri.org/

(快速）“共同的“exploit,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/

上面的信息很难吗？

快去使用第三方脚本/工具来试试吧！

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）指南和链接

例如

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

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

其他

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

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