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SECURIY ISSUE: VC400 being brute forced and dont stop calling
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complex1 Offline
3CX Adv. Cert. Engineer
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Post: #2
RE: SECURIY ISSUE: VC400 being brute forced and dont stop calling
(01-04-2019 11:53 AM)HenriqueMachado Wrote:  Hello! Henrique from Brazil

Today my VC400 started receiving calls one after the other. When I look who is calling it show like SQL Injection codes:


admin' --
admin' #
admin'/*
' or 1=1--
' or 1=1#
' or 1=1/*
1' or '1' = '1
') or '1'='1--
') or ('1'='1--


What can I do? Is there a way to protect my VC400 from these scanners? Like a password before calling or something like that?

Thanks

Hi Henrique,

May I suggest to do next steps?

- Disconnect the VC400 from your LAN.
- Check your router firewall configuration if the right ports are set.
- Reset VC400 Codec to factory default.
Using tiny objects (for example, the paper clip) to press and hold the reset button for 15 seconds until the screen turns black.
- Change User password into a strong password (>16 char) or disable the user mode
- Change Admin password into a strong password (>16 char)
- Connect the VC400 to your LAN
- (Re)configure the device and check again.

Hope this will help.

Best regards,
Frank.

Dutch is my native language, not English. Apologies for my imperfect grammar.
Please do not send unsolicited PM messages. I will not answer them.
01-04-2019 01:02 PM
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RE: SECURIY ISSUE: VC400 being brute forced and dont stop calling - complex1 - 01-04-2019 01:02 PM

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