- #Cms dvr default login how to#
- #Cms dvr default login install#
- #Cms dvr default login update#
- #Cms dvr default login Patch#
- #Cms dvr default login upgrade#
I think I'll go ahead and try flashing this sucker w/ the modifed image now. I might leave it over night and throw some different word lists at it tomorrow, because I'd really like to crack the stock pw to simplify this for others. Got john cranking w/ its default word lists for ****s and giggles on the real passwd file, but I don't expect much. Strangely, I had a script that simplified mounting a jffs image here in my home folder from where I was mounting that other model's image months back, and I thought I arrived at that fs type by using disktype, but it didn't identify this image as such.Īnyway, I successfully mounted it and used john to quickly verify that the backup passwd- file uses "helpme" for root on this zmodo. It looks like my zmodo falls into that category. This is super easy for the DVR's that use a tar.gz update, but the ones that do a full jffs/yaffs2 flash are a bit trickier I imagine, but its surely not impossible
#Cms dvr default login update#
I ended up finding a page describing the firmware update for another model:Īnd was able to find a firmware image update for my machine (9108V) that was recently added at a parent dir I stripped from the other model's firmware URL: Searching their knowledge base for my SKU turned up jack. There are a couple more likely spots I need to probe before calling UART a wash on it.ĮDIT: Found the firmware image. I'm pretty n00b when it comes to electronics/hardware, though.
I did get a serial-to-usb interface for that purpose, but didn't find the pinouts. I was expecting to have to use a uart to get a root login and use dd to write out the existing image.
#Cms dvr default login upgrade#
I'll check on obtaining a proper firmware upgrade for my machine. Short-term, simply getting better access to the files as you mention would be great.
#Cms dvr default login install#
It's be a super fun project to start with a fresh, up-to-date ucLinux install and attempting to piece together my own front end. I'd like to take a shot at completely replacing said activeX web UI with something more modern and standard, but that would definitely be a long term project for me, having little experience with video codecs, etc., and being very rusty in C (not to mention being busy w/ the day job). Yeah, I've been interested in playing with some embedded Linux hacking and this would be a great piece of hardware for it. The best part is, I was able to give myself http access to the raw DVR recordings & now im working on a smb fix so the file sharing works with Windows 7, no wonder it doesn't work - the samba binaries look to be abou 8 years out of date.
#Cms dvr default login how to#
If you guys are still interested I'd be willing to write a tutorial/blog on how to do it.
#Cms dvr default login Patch#
None of the images use any sort of update signing.so even if they did try to patch this method and just get rid of the telnet server, it would be possible to still put it back via a patched update. This is super easy for the DVR's that use a tar.gz update, but the ones that do a full jffs/yaffs2 flash are a bit trickier I imagine, but its surely not impossible, I just don't have one to test and come up with a proper procedure on how to do it. I did however get into the telnet server, basically to cut a long story short, you need to just make an update file that sends a new /etc/passwd with your own MD5 hash as the root password and then boom, you're in. I got my hands on a Zmodo DVR that also had UART console blocked, I'm guessing they've done it at the kernel level because I can't seem to get it enabled by any means. I think this board is a cool little specimen to mess around with embedded linux and maybe I can do something about the crappy web front end that requires ActiveX, but at a minimum, shell access to make backups of video vs. He mentions this site, but I'm not quite certain what to look for: Where did you get the TTL-to-USB adapter you're using? I have been following the advice in this guide as I am a software guy and have little experience in embedded systems: I just got through taking the board out to see if I could identify the processor and come across pinouts to trace to the UART leads and can't seem to find any info on it, but it looks like my Zmodo board is very similar to the one you show. I'm trying to get a login to my Zmodo box and stumbled across this post after hammering away at the telnet login with Hydra for quite a while. You might need to check those two lines for different boxes, if you issue the command printenv you'll see the bootargs and the boot address.įrom here you can either call passwd to change the password, or if you want to retain the old one you can copy passwd to passwd~ and rename passwd- to passwd which will leave you with the weak broken password "helpme"
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