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"/etc/passwd" and "/etc/shadow" are symbolic links to "/tmp/passwd" and "/tmp/shadow". It is now time to start that "/usr/sbin/telnetd" server :) But wait.
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So … "recorder_test.cgi" potentially calls system("smbmount //%s/%s %s -o username=%s,password=%s") … Let's see if "password" parameter is properly escaped. Rs485_control.cgi: RS485PresetControl::%s(), unexpected command Recorder_test.cgi: smbmount //%s/%s %s -o username=%s,password=%s Let's focus on those files, and look for possibly unsecure calls.Īdv_sdcard.cgi: find "%s" -type f -name "*" |wc -l In my experience, this bug plagues all and every Linux-based embedded devices, ranging from the OrangeBox (now dead link) to DD-WRT. Let's look for compiled CGI that might be calling system().
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However we are going to focus on a very specific bug: "semicolon injection". Any file loader that can recognize the analyzed file will be presented and we will be able to choose any of them. IDA Pro will automatically present the file types that can be used to work with the loaded file. XmlBegin index.xsl home-left.lang index.lang The list of file types generated from the list of potential file types is located in IDA Pro’s loaders directory. usr/sbin/telnetd 1>/dev/null 2>/dev/null According to copyright strings, the camera itself is built around the Prolific PL-1029 "System On a Chip". Many CGI files under "/var/script :)
#Ida pro mac setting up full#
We now have full read access to the firmware, which leads to interesting discoveries. $ sudo mount -o loop,ro cramfs /mnt/loop/īin dev etc lib linuxrc mnt opt proc sbin scripts tmp usr var Actual offset may vary - depending of the firmware localization (D-Link provides regional builds of the same version). Nevertheless we gained some insights about memory layout, and we know that a CramFS filesystem is used.ĬramFS "magic" bytes are 0x28cd3d45 - they are very easy to locate within the firmware (beware of endianness). You can quickly and easily create scripts on the fly. When it comes to pen testing using a linux distro, bash scripting can really help you out by speeding things up.
#Ida pro mac setting up mac os x#
# tarLine will be replaced with a real number by Makefile The IDA Disassembler and debugger is a multi-processor disassembler and debugger hosted on the Windows, Linux and Mac OS X Platforms.