blackshell tool1: SSHD vulnerability scanner

From: blackshellat_private
Date: Mon Dec 31 2001 - 21:12:53 PST

  • Next message: blackshellat_private: "blackshell tool1: SSHD vulnerability scanner"

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    this tool is for the purpose of professional security people testing their own private/corporate networks. under no circumstances is the blackshell team repsonsible for any misuse of this.
    
    #!/usr/bin/perl -w
    
    #--blackshell tool1--#
    #--blackshell-sshd.pl--#
    
    # this is a mass scanner for remote security testing
    # of networks for the ssh crc32(deattack) bug.
    # this is being exploited in the wild at the present time
    # and it leads to complete remote compromisation
    # of a vulnerable server
    
    # vulnerable OS'es include aix, irix, linux, solaris, hpux, unicos(yes)
    
    # a few thanks: dave dittrich, bindview, team-teso, #!blackshell contributors
    
    use Thread;
    use Strict;
    use Socket;
    use Getopt::Std;
    use Config;
    
    my $banner = qq(
    Mass SSHD Vulnerability Scanner
    by BlackShell
    blackshellat_private
    );
    
    $exploit_information = qq(
    
    Advisories:
    
    http://www.securityfocus.com/advisories/3088
    http://xforce.iss.net/alerts/advise100.php
    http://razor.bindview.com/publish/advisories/adv_ssh1crc.html
    http://www.securityfocus.com/bugid=2347
    http://www.ssh.com/products/ssh/advisories/ssh1_crc-32.cfm
    http://openssh.org/security.html
    http://www.cisco.com/warp/public/707/SSH-multiple-pub.html
    
    
    Information:
    
    http://www.securityfocus.com/cgi-bin/archive.pl?id=75&start=2001-10-27&end=2001-11-02&mid=221998&threads=1
    http://staff.washington.edu/dittrich/misc/ssh-analysis.txt
    http://www.newsbytes.com/news/01/171291.html
    http://www.cert.org/incident_notes/IN-2001-12.html
    
    
    Incidents:
    
    http://archives.neohapsis.com/archives/incidents/2001-12/0009.html
    http://archives.neohapsis.com/archives/incidents/2001-12/0047.html
    http://archives.neohapsis.com/archives/incidents/2001-12/0102.html
    http://archives.neohapsis.com/archives/incidents/2001-12/0103.html
    http://archives.neohapsis.com/archives/incidents/2001-12/0189.html
    http://archives.neohapsis.com/archives/incidents/2001-12/0225.html
    http://archives.neohapsis.com/archives/incidents/2001-12/0240.html
    
    );
    
    
    # borrowed from dave's code(thanks :>)
    
    my @affected = (
    'SSH-1.5-1.2.24',
    'SSH-1.5-1.2.25',
    'SSH-1.5-1.2.26',
    'SSH-1.5-1.2.27',
    'SSH-1.5-1.2.28',
    'SSH-1.5-1.2.29',
    'SSH-1.5-1.2.30',
    'SSH-1.5-1.2.31',
    'SSH-1.5-OpenSSH-1.2',
    'SSH-1.5-OpenSSH-1.2.1',
    'SSH-1.5-OpenSSH-1.2.2',
    'SSH-1.5-OpenSSH-1.2.3',
    'SSH-1.99-OpenSSH-2.1',
    'SSH-1.99-OpenSSH_2.1.1',
    'SSH-1.99-OpenSSH_2.2.0',
    'SSH-1.99-OpenSSH_2.2.0p1',
    );
    
    
    
    
    if(! $Config{'usethreads'})
    {
    	print "\nNo Threading Supported";
    	exit 1;
    }
    
    getopts("d:t:l:i:",%args);
    
    my $debug;
    
    
    		if($args{i})
    		{
    		my $infile = $args{i} || sshd.in;
    		print "\nUsing infile: $infile";
    		}
    		elsif($args{d})
    		{
    			$debug = 1;
    			print "\nUsing Debuging!";
    		}
    		elsif($args{t})
    		{
    			my $timeout = $args{t} || 5;
    			print "\nUsing Timeout: $args{t}!";
    		}
    		elsif($args{l})
    		{
    			my $logfile = $args{l};
    			print "\nUsing logfile: $logfile";
    		}
    
    		open(FILE,"<$infile") || die "\nCant read from $logfile";
    
    		while(<>)
    		{
    			chomp($host = $_);
    			print "\nScanning $host...";
    
    			my $thread = Thread->new(\&check_scan,$host);
    			print "\nScanning $host...";
    			my @return = $thread->join;
    		}
    			if($debug)
    			{
    				my $check;
    				foreach $check (@return)
    				{
    					print "\nDebugging running....";
    					print "\n$debug info...:";
    					print "\n$check";
    				}
    
    					}else{
    
    					print "\n\n$banner\n";
    					print "\n\nOptions: ";
    					print "\n./$0 -i <INFILE> -l <LOGFILE> -d -t 15";
    					print "\n
    					print "\ndefaults: ";
    					print "\ntimeout: 5";
    					print "\nhost list: sshd.in";
    					print "\nlogfile: sshd.log";
    					print "\ndebug: no";
    					}
    
    			}
    	}
    
    sub check_scan ($)
    {
    
    	eval {
    
    	my $host = shift;
    	my $iaddr = inet_aton($host);
    	my $port = "22";
    
    		my $paddr = sockaddr_in($port, $host);
    		my $proto = getprotobyname('tcp');
    		socket(SOCK,AF_INET,SOCK_STREAM,$proto) || die "\nCant make Socket: $!";
    		alarm($args{t});
    		if(connect(SOCK,$paddr))
    		{
    			print "\nSSHD is open on $host";
    			print "\n${host}'s response...";
    		}
    			while(<SOCK>)
    			{
    				chomp;
    				print;
    				$response = $_;
    				&log($host, $response);
    				print "\analyzing ${host}'s response...";
    				&analyze($host, $response);
    			}
    
    		}
    
    			close(SOCK);
    	}
    
    
    
    sub log ($$)
    {
    
    	open(LOG,">$logfile") || die "\nCant open $logfile for writing";
    
    	select(LOG);
    	print "\n$banner\n";
    	print "\n$exploit_information"
    	close(LOG);
    
    	$host = shift;
    	$rez = shift;
    
    		open(LOG,">>$logfile") || die "\nCant open $logfile";
    		flock(LOG,2) || die "\nCant file lock";
    		select(LOG);
    
    			print "\nResults:";
    			print "\n${host}: $rez";
    			print "\n\nFinished...\n";
    
    	close(LOG);
    
    }
    
    
    
    sun analyze ($$)
    {
    
    	$host = shift;
    	$result = shift;
    
    	foreach $checkz (@affected))
    	{
    		if($result = $checkz)
    		{
    			print "\n$host is running a vulnerable version of SSHD";
    			print "\nversion is: $result";
    		}
    	}
    }
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