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Unauthorize access to WHMCS admin area


akboselk

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Hi guys

 

I have latest (4.2) whmcs installation and also use customized admin url.

 

Also i do have few Admin account on WHMCS and all those used STRONG pass.

 

The system works fine without any issue, but someone entered (illegal entry so it is HACKED attempt) into the system and modified few client records.

 

I have open a support ticket to WHMCS and their reply as below

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If it wasn't you or one of your staff then yes you have had an unauthorized access so should change all your passwords. With a customised URL it indicates the malicious user had access to your files to find it so probably a local file on another account like a shell script or something of that nature.

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1) How these guys find the customized admin url ? What is this shell script story ?

 

2) Anyone had this type of event with your whmcs ? and how to stop this type of attack ?

 

** Pl don't mention "check your pc for malware / spyware , check other script on the site for bugs, use strong pass", bc we have done all the security steps we can take.

 

expecting your ideas for this and it will help for all those guys who use whmcs.

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I don't have an answer for you, but I would like to learn from this as this could happen to any of us using WHMCS.

 

I don't know if you already have an SSL or if it even helps this kind of stuff, but I bought one so that I feel a little safer about the information flowing in & out of my site....at least that what I think the SSL is for...LOL

 

Hope you can solve your issue.

 

Regards

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I would keep in mind that they do not need access to whmcs itself...

 

If they have/had your DB password then they could utilize that to make client changes... Did you receive an email that there were failed attempts to login to admin area... Also if someone has your ftp password then obviously they could see the path to your custom admin path and password to database etc...

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It may an idea to run a rootkit tool on your server/s. As mentioned in the reply from WHMCS as you're using a modified admin location (assuming it's not an easy guess) then they will most likely have access to your file system.

 

This isn't a WHMCS security issue as they appear to have logged in with a valid username and password. This would be a server security matter.

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I don't know if you already have an SSL or if it even helps this kind of stuff

It would only help with the transmission of data between the server and user, if the place you're connecting to is secured using it.

 

1) How these guys find the customized admin url ? What is this shell script story ?

Is your WMCS on the same server as clients sites? It's possible they uploaded and used a PHP script that under less secured server environments can access file and server side program they shouldn't be allowed to, possibly even root access. Do a Google search for things like c99 shell for more info.

It may an idea to run a rootkit tool on your server/s.

If they had root access it's unlikely all they'd use it for was to change some accounts in WHMCS. ;)

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"Is your WMCS on the same server as clients sites? "

 

No, but on a shared server on Same Network.

Yes, now i also think this is server side security issue, because i have another 2-3 whmcs and no such a problem

 

1) Ok, What about a VPS, will this type of solution provide better security for the WHMCS system rather than on Shared Server ?

 

2) Also WHMCS allow

"API IP Access Restriction .....

Enter the IPs allowed to connect to the API, one per line

on General config section. Can someone tell what is this ?

and will this allow IP range ?

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