Kitz ADSL Broadband Information
adsl spacer  
Support this site
Home Broadband ISPs Tech Routers Wiki Forum
 
     
   Compare ISP   Rate your ISP
 
Please login or register.

Login with username, password and session length
Advanced search  

News:

Pages: 1 [2]

Author Topic: [SOLVED] Help, I can't reboot my VMG3925-B10B via telnet :(  (Read 1411 times)

bobis

  • Just arrived
  • *
  • Posts: 18
Re: Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #15 on: August 01, 2017, 12:40:40 PM »

I just discovered this , can I issue a reboot command here?

Moreover , I already replied to the ticket saying that my firmware update issue is fixed and requested root/supervisor credentials.
« Last Edit: August 01, 2017, 12:58:28 PM by bobis »
Logged

burakkucat

  • Global Moderator
  • Senior Kitizen
  • *
  • Posts: 20605
  • Over the Rainbow
    • The ELRepo Project
Re: Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #16 on: August 01, 2017, 05:40:41 PM »

I just discovered this , can I issue a reboot command here?

I suspect not. But perhaps you can find the time to test and then let us all know?
Logged
:cat:  100% Linux and, previously, Unix. Co-founder of the ELRepo Project.

Please consider making a donation to support the running of this site.

bobis

  • Just arrived
  • *
  • Posts: 18
Re: Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #17 on: August 16, 2017, 12:38:43 PM »

After I opened a new ticket about not being able to reboot the router , they lastly respond with:



Quote
Dear Customer,

we are really sorry that we can not provide more support for you in that case.
Because these home user products only have limited small Linux installed that the endusers are not supposed to use in a profound ways.

This is ridiculus! I also own a ZyXEL P-870HN 51b (home gateway of course, 4 years old) and I am able to reboot it from telnet/ssh , no problem!
Logged

j0hn

  • Kitizen
  • ****
  • Posts: 1122
Re: Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #18 on: August 16, 2017, 05:51:00 PM »

have you tried the "reboot" command when logged in as Supervisor via telnet/ssh?
Logged
BT FTTC 55/10 ECI Huawei Cab - Zyxel VMG1312-B10A bridge mode + Asus RT-AC68U running Asuswrt-Merlin - minted on MDWS via DslStats

bobis

  • Just arrived
  • *
  • Posts: 18
Re: Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #19 on: August 16, 2017, 05:58:29 PM »

have you tried the "reboot" command when logged in as Supervisor via telnet/ssh?

Zyxel doesn't send any supervisor credentials to end/home users like me. Anyway, to close this thread, I finaly found a workaround called ssh tunneling (this can be used even if you don't have https access from WAN due to TLS error) and with this I mirrored the http localhost site of the  gateway to the localhost of my mobile. Then, I just logged in and issued a reboot from web interface as normal.

If it was not for ssh tunnelling, I would never have done it but I would prefer to have elevated rights to my product anytime than having to rely to workarouds like this.
« Last Edit: August 16, 2017, 06:05:50 PM by bobis »
Logged

j0hn

  • Kitizen
  • ****
  • Posts: 1122
Re: [SOLVED] Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #20 on: August 17, 2017, 12:18:14 AM »

Quote
Zyxel doesn't send any supervisor credentials to end/home users like me.
If you login via telnet as admin and issue the command:

cat /var/passwd

msg me the line containing:

supervisor:$dkhkjdfjgsfjjfg:0:0:Administrator:/:/bin/sh

I will give you the Supervisor password, which you can then change to something else.
Logged
BT FTTC 55/10 ECI Huawei Cab - Zyxel VMG1312-B10A bridge mode + Asus RT-AC68U running Asuswrt-Merlin - minted on MDWS via DslStats

bobis

  • Just arrived
  • *
  • Posts: 18
Re: [SOLVED] Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #21 on: August 31, 2017, 06:58:53 AM »

[REAL FINAL SOLUTION]

Only the root account (which has the same password like the supervisor one) has access to reboot command via ssh/telnet. Thanks to a guy named John on this forum, he helped me find out these credentials.
Logged

j0hn

  • Kitizen
  • ****
  • Posts: 1122
Re: [SOLVED] Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #22 on: August 31, 2017, 08:50:35 AM »

 :hat:
Logged
BT FTTC 55/10 ECI Huawei Cab - Zyxel VMG1312-B10A bridge mode + Asus RT-AC68U running Asuswrt-Merlin - minted on MDWS via DslStats

Nedad

  • Just arrived
  • *
  • Posts: 1
Re: [SOLVED] Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #23 on: January 03, 2018, 12:06:43 PM »

Hi,

Can we get the solution in here?

Thanks,
Nenad
Logged

kitz

  • Administrator
  • Senior Kitizen
  • *
  • Posts: 30609
  • Trinity: Most guys do.
    • http://www.kitz.co.uk
Re: [SOLVED] Help, I can't reboot my VMG3925-B10B via telnet :(
« Reply #24 on: January 04, 2018, 10:31:10 PM »

[REAL FINAL SOLUTION]
Only the root account (which has the same password like the supervisor one) has access to reboot command via ssh/telnet.


If you login via telnet as admin and issue the command:

cat /var/passwd

msg me the line containing:

supervisor:$dkhkjdfjgsfjjfg:0:0:Administrator:/:/bin/sh

I will give you the Supervisor password, which you can then change to something else.

Basically John used the hashcat utility to decrypt the supervisor password.   
Hashcat needs a decent spec GPU to get results quickly which is why j0hn kindly offered to do so, otherwise it may have taken bobis a few days.
Logged
Please do not PM me with queries for broadband help as I may not be able to respond.
-----
How to get your router line stats :: ADSL Exchange Checker
Pages: 1 [2]
 

anything