version 1.7, 2000/10/29 23:14:16
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version 1.8, 2000/10/30 02:31:45
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Line 99 else {
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Line 99 else {
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my ($username,$password1,$password2)=@input; |
my ($username,$password1,$password2)=@input; |
$username=~/^(\w+)$/; |
$username=~/^(\w+)$/; |
my $safeusername=$1; |
my $safeusername=$1; |
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if ($username ne $safeusername) { |
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print "Error. The user name specified has invalid characters.\n"; |
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unlink('/tmp/lock_lcpasswd'); |
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exit 9; |
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} |
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my $pbad=0; |
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map {if (($_<32)&&($_>126)){$pbad=1;}} (split(//,$oldpwd)); |
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map {if (($_<32)&&($_>126)){$pbad=1;}} (split(//,$newpwd)); |
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if ($pbad) { |
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print "Error. A password entry had an invalid character.\n"; |
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unlink('/tmp/lock_lcpasswd'); |
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exit 10; |
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} |
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# Only add user if we can create a brand new home directory (/home/username). |
# Only add user if we can create a brand new home directory (/home/username). |
if (-e "/home/$safeusername") { |
if (-e "/home/$safeusername") { |
Line 137 if (system('/usr/sbin/usermod','-G',$saf
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Line 150 if (system('/usr/sbin/usermod','-G',$saf
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# for crazy characters in the password, and the setuid environment of perl |
# for crazy characters in the password, and the setuid environment of perl |
# requires me to make everything safe. |
# requires me to make everything safe. |
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my $pbad=0; |
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map {if (($_<32)&&($_>126)){$pbad=1;}} (split(//,$oldpwd)); |
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map {if (($_<32)&&($_>126)){$pbad=1;}} (split(//,$newpwd)); |
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if ($pbad) { |
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print "Error. A password entry had an invalid character.\n"; |
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unlink('/tmp/lock_lcpasswd'); |
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exit 10; |
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} |
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# Grab the line corresponding to username |
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my ($userid,$useroldcryptpwd); |
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my @F; my @U; |
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for my $l (@lines) { |
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@F=split(/\:/,$l); |
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if ($F[0] eq $username) {($userid,$useroldcryptpwd)=($F[2],$F[1]); @U=@F;} |
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} |
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# Verify existence of user |
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if (!defined($userid)) { |
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print "Error. User $username does not exist.\n" unless $noprint; |
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unlink('/tmp/lock_lcpasswd'); |
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exit 5; |
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} |
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# Verify password entry |
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if (crypt($oldpwd,$useroldcryptpwd) ne $useroldcryptpwd) { |
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print "Error. Invalid entry of current password.\n" unless $noprint; |
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unlink('/tmp/lock_lcpasswd'); |
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exit 6; |
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} |
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# Construct new password entry (random salt) |
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my $newcryptpwd=crypt($newpwd,(join '', ('.', '/', 0..9, 'A'..'Z', 'a'..'z')[rand 64, rand 64])); |
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$U[1]=$newcryptpwd; |
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my $userline=join(':',@U); |
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my $rootid=&enable_root_capability; |
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if ($rootid!=0) { |
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print "Error. Root was not successfully enabled.\n" unless $noprint; |
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unlink('/tmp/lock_lcpasswd'); |
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exit 7; |
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} |
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open PASSWORDFILE, '>/etc/passwd' or (print("Error. Cannot open /etc/passwd.\n") && unlink('/tmp/lock_lcpasswd') && exit(8)); |
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for my $l (@lines) { |
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@F=split(/\:/,$l); |
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if ($F[0] eq $username) {print PASSWORDFILE "$userline\n";} |
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else {print PASSWORDFILE "$l\n";} |
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} |
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close PASSWORDFILE; |
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($>,$<)=(0,0); # fool smbpasswd here to think this is not a setuid environment |
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unless (-e '/etc/smbpasswd') { |
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open (OUT,'>/etc/smbpasswd'); close OUT; |
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} |
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my $smbexist=0; |
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open (IN, '</etc/smbpasswd'); |
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my @lines=<IN>; |
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close IN; |
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for my $l (@lines) { |
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chop $l; |
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my @F=split(/\:/,$l); |
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if ($F[0] eq $username) {$smbexist=1;} |
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} |
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unless ($smbexist) { |
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open(OUT,'>>/etc/smbpasswd'); |
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print OUT join(':',($safeusername,$userid,'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX','','/home/'.$safeusername,'/bin/bash')) . "\n"; |
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close OUT; |
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} |
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open(OUT,"|/usr/bin/smbpasswd -s $safeusername>/dev/null"); |
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print OUT $newpwd; print OUT "\n"; |
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print OUT $newpwd; print OUT "\n"; |
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close OUT; |
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$<=$wwwid; # unfool the program |
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# Make final modifications to the user directory. |
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# Add a public_html file with a stand-in index.html file. |
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mkdir "/home/$safeusername/public_html",0750; |
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# chmod -R |
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open OUT,">/home/$safeusername/public_html"; |
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print OUT<<END; |
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<HTML> |
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<HEAD> |
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<TITLE>$safeusername</TITLE> |
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</HEAD> |
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<BODY> |
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<H1>$safeusername</H1> |
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<P> |
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Learning Online Network |
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</P> |
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<P> |
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This area provides for: |
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</P> |
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<UL> |
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<LI>resource construction |
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<LI>resource publication |
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<LI>record-keeping |
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</UL> |
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</BODY> |
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</HTML> |
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END |
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close OUT; |
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&disable_root_capability; |
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unlink('/tmp/lock_lcpasswd'); |
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exit 0; |
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# ----------------------------------------------------------- have setuid script run as root |
# ----------------------------------------------------------- have setuid script run as root |
sub enable_root_capability { |
sub enable_root_capability { |