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Author Topic: VMG8924-B10A unbranded supervisor password  (Read 48556 times)

xlr8r

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Re: VMG8924-B10A unbranded supervisor password
« Reply #120 on: January 09, 2020, 03:05:36 PM »

The newer firmwares had the dump command removed so johnsons firmware will be the same as they are based on the official ones iirc.

For me I had to use hashcat on my 1312 to get the supervisor password and the csamu trick on the 8324.

For 8324 one of these should work (last one for me iirc):
Code: [Select]
cat /etc/passwd
cat /var/csamu
echo $(cat /etc/passwd)
echo $(cat /var/csamu)

Search Google for how to decode the base64 strings found in the files above.

I wouldn't risk a remote upgrade!

If you want more information on what each version of johnsons firmware provides use
https://github.com/johnson442/custom-zyxel-firmware/blob/master/README.md
Unless you know you need it iirc the v6 are NOT recommended I just went for the everything option
8x24-B10A-28-jumbo-tel-stats-cmd.bin
Now running a 1312 though

thanks could you guide me a little through the initial part i.e. the csamu trick on the 8324 ?
Do i just putty or telnet in using normal admin and password and then type , echo $(cat /var/csamu)
i presume this gives some code that i need to "decode the base64 strings found in the files" ?
thanks

update - i tried using ;
> echo $(cat /var/csamu)

and got this ;

telnetd:error:317.879:processInput:599:unrecognized command echo $(cat /var/csamu)
> echo
telnetd:error:374.535:processInput:599:unrecognized command echo

2nd update - ahaa!! i got it using ;
cat /var/csamu
and base64'd it to text and it works!

many thanks for this

[Moderator edited to fix a typo.]
« Last Edit: January 09, 2020, 05:40:57 PM by burakkucat »
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Mike-UK

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Re: VMG8924-B10A unbranded supervisor password
« Reply #121 on: January 22, 2020, 05:33:12 PM »

Hi just got myself a vmg8924, I've managed to retive the superviser password so can log in, it was a john lewis router and is running firmware 1.00(AAKL.24)C0 ,would I benefit from flashing zyxels latest firmware or should I keep it as is ??
Thanks
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tubaman

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Re: VMG8924-B10A unbranded supervisor password
« Reply #122 on: January 22, 2020, 06:44:29 PM »

Hi just got myself a vmg8924, I've managed to retive the superviser password so can log in, it was a john lewis router and is running firmware 1.00(AAKL.24)C0 ,would I benefit from flashing zyxels latest firmware or should I keep it as is ??
Thanks

There are a number of bug fixes and security patches between AAKL.24 and the latest AAKL.28 version, so if it were me I'd update it. Be aware that the update could randomise the Supervisor password again. I think this happens if you clear the ROM-D before upgrading, so if you've saved a config back to it you should be ok.
 :)
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BT FTTC 80/20 Huawei Cab - Zyxel VMG8924-B10A

Mike-UK

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Re: VMG8924-B10A unbranded supervisor password
« Reply #123 on: January 22, 2020, 08:16:25 PM »

Ok I'll have a go at updating it, I did try updating it via the admin login but said illegal file or something, I'm guess that's due to not having zyxel standard firmware upgrade permissions due to john lewis, so will superviser login allow me to upgrade ?, and is it just a case of upgrading or do I need to wipe the rom-d before, and will the passwords still be reteviable via the csamu command ?
Thanks
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ktz392837

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Re: VMG8924-B10A unbranded supervisor password
« Reply #124 on: January 22, 2020, 11:50:59 PM »

https://forum.kitz.co.uk/index.php?topic=19186.msg407783.msg#407783 and surrounding replies may be of use when debranding is sorted.

Update: just realised I have linked to the same thread ;) I am sure I have read how to debrand on this forum somewhere and I think Johnson's firmware is great
« Last Edit: January 22, 2020, 11:56:48 PM by ktz392837 »
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tubaman

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Re: VMG8924-B10A unbranded supervisor password
« Reply #125 on: January 23, 2020, 10:31:52 AM »

Ok I'll have a go at updating it, I did try updating it via the admin login but said illegal file or something, I'm guess that's due to not having zyxel standard firmware upgrade permissions due to john lewis, so will superviser login allow me to upgrade ?, and is it just a case of upgrading or do I need to wipe the rom-d before, and will the passwords still be reteviable via the csamu command ?
Thanks
That's odd, as if the upgrade option is available it should work.
I assume you have unzipped the upgrade files and are pointing it to the right one in the set? There are usually four files in there - two PDFs, a blank config file, and the firmware file itself.
 :)
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BT FTTC 80/20 Huawei Cab - Zyxel VMG8924-B10A

Mike-UK

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Re: VMG8924-B10A unbranded supervisor password
« Reply #126 on: January 23, 2020, 01:05:01 PM »

That's odd, as if the upgrade option is available it should work.
I assume you have unzipped the upgrade files and are pointing it to the right one in the set? There are usually four files in there - two PDFs, a blank config file, and the firmware file itself.
 :)

hi, thanks all your replys and help, it was prob a corrupted download as I had to download the firmware on my mobile as I couldn't figureout how to change ppp to not use a login, and looks like it was a corrupt file as I have now got the router to connect to my isp and I downloaded the firmware again and extracted it and it was a larger size this time, although I did upgrade via supervisor account and now on .28

im on a ECI cabinet and been using the BT openreach separate modem, thought id give a BC chip a try, so far no speed difference :(
Thanks
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tubaman

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Re: VMG8924-B10A unbranded supervisor password
« Reply #127 on: January 23, 2020, 01:42:26 PM »

hi, thanks all your replys and help, it was prob a corrupted download as I had to download the firmware on my mobile as I couldn't figureout how to change ppp to not use a login, and looks like it was a corrupt file as I have now got the router to connect to my isp and I downloaded the firmware again and extracted it and it was a larger size this time, although I did upgrade via supervisor account and now on .28

im on a ECI cabinet and been using the BT openreach separate modem, thought id give a BC chip a try, so far no speed difference :(
Thanks

Glad you got it working and commiserations for being on an ECI cabinet as you won't benefit from G.INP and xdB which can give very worthwhile speed boosts.
Broadcom chips don't give the best results for everyone - it really is a case of try it and see.
 :)
« Last Edit: January 23, 2020, 01:52:27 PM by tubaman »
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BT FTTC 80/20 Huawei Cab - Zyxel VMG8924-B10A

Mike-UK

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Re: VMG8924-B10A unbranded supervisor password
« Reply #128 on: January 23, 2020, 02:59:11 PM »

yes is a bit of a bummer having an eci cab, although I cant complain too much, my line length is around 500 meters and sync at 55.854 Mbps and get 6.2 downloads, so could be worse but could be better  :'(
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ktz392837

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Re: VMG8924-B10A unbranded supervisor password
« Reply #129 on: January 23, 2020, 03:09:25 PM »

im on a ECI cabinet and been using the BT openreach separate modem, thought id give a BC chip a try, so far no speed difference :(
Thanks
For me also not much speed difference but my 8924/1312a has far less errors.  Everyone's line is different so your experience may be different.
« Last Edit: January 23, 2020, 03:11:30 PM by ktz392837 »
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Mike-UK

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Re: VMG8924-B10A unbranded supervisor password
« Reply #130 on: January 23, 2020, 03:51:19 PM »

unfortunately I have no stats from the previous modem to compare, Wi-Fi signal has improved over my netgear unit and speeds have stayed the same, maybe dlm will be nice to me in the future 
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banger

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Re: VMG8924-B10A unbranded supervisor password
« Reply #131 on: February 05, 2020, 08:40:47 PM »

Just tagging onto this thread but had some trouble getting rid of plusnet TR069 settings so had to downgrade to V7 and clear rom and save then upgrade back to V28 and the plusnet TR069 settings and URL had gone. There doesn't appear to be a way to change supervisor password on V28 unless I am missing something.
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Tim
talktalkbusiness.net & freenetname
Asus RT-AC68U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

burakkucat

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Re: VMG8924-B10A unbranded supervisor password
« Reply #132 on: February 05, 2020, 10:05:20 PM »

. . . downgrade to V7 and clear rom and save then upgrade back to V28 and the plusnet TR069 settings and URL had gone. There doesn't appear to be a way to change supervisor password on V28 . . .

I suspect that changing the supervisor password whilst on "V7" and then upgrading would be the way to do it.
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banger

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Re: VMG8924-B10A unbranded supervisor password
« Reply #133 on: February 05, 2020, 10:30:47 PM »

Thanks Mr B*kat. I have the V28 randomised password stored in a file and on firefox just in case.
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Tim
talktalkbusiness.net & freenetname
Asus RT-AC68U and ZyXEL VMG1312-B10A Bridge on 80 Meg TTB Fibre

https://www.thinkbroadband.com/speedtest/1502566996147131655

digitalnemesis

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Re: VMG8924-B10A unbranded supervisor password
« Reply #134 on: September 02, 2020, 06:09:11 PM »

Just wanted to post that this worked for me on VMG8924-B10A custom firmware 28-jumbo-tel-x6-stats1.1-cmd

Also once I found the supervisor password the dumpmdm command now works!

Cheers!

Code: [Select]
cat /var/csamu
« Last Edit: September 02, 2020, 06:25:32 PM by digitalnemesis »
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