Linux router help needed Post: 302996439

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Top Forums UNIX for Beginners Questions & Answers Linux router help needed Post 302996439 by apoklyps3 on Wednesday 26th of April 2017 08:27:09 AM

04-26-2017

Registered User

unfortunately the firmare image is not public. the router is branded by the ISP and automaticaly updates the firmware.
My guess is that they put the firmware somewhere and it gets updated on a reboot.
Hopefuly I'll be able to intercept it next time there will be an update.
I have probed /bin/busybox myself and it seems to be an ELF-64 kind of executable...not sure what to make of that ...
the files I attached before were from mtdblock0 and 1 , because when trying to do it on mtd0 and 1 i got "dd: can't open '/dev/mtd0': No such file or directory",wich is weird because they are mentioned in "cat /proc/mnt"
In /dev I have mtd from 5 to 7 and mtdblock from 0 to 7. which of them do you want me to post?

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ethcheck

ETHCHECK(8)						    BSD System Manager's Manual 					       ETHCHECK(8)

NAME

     ethcheck -- check the integrity of Broadcom Ethernet devices' firmware.

SYNOPSIS

     ethcheck --integrity-check [-b filename]
     ethcheck --show-hashes [-b filename]
     ethcheck --save -b filename
     ethcheck --cleanup -b filename
     ethcheck --version
     ethcheck --help

DESCRIPTION

     Ethcheck is an application-layer tool to check the integrity of Broadcom Ethernet devices' firmware.

     The following commands can be used with ethcheck:

     --integrity-check attempt to automatically determine which firmware you are running, integrity check against the appropriate file, and report
     the check result. It requires root privileges.

     --integrity-check -b filename integrity check the firmware image, and report the check result.

     --show-hashes print the hashes for the current system's Ethernet devices' firmware to stdout. It requires root privileges.

     --show-hashes -b filename print the hashes for the given firmware image to stdout.

     --save -b filename save this Ethernet device(s)'s firmware in file. It requires root privileges. File name(s) will begin with specificed
     filename and be selected according to device ID(s), machine model name, and firmware's version(s). E.g. filename-eth0-0x14e4-0x1686.nvram.bin

     --cleanup -b filename zero any privacy-sensitive data (such as MAC address), enabling the file to be shared for analysis.

     --version print out ethcheck version number.

     --help display a short help.

								   May 25, 2017