TVT Backdoor Disclosed

By: IPVM Team, Published on Apr 09, 2018

Security researcher Bashis has disclosed a backdoor in TVT video surveillance products, with TVT issuing its own 'Notification of Critical Vulnerabilities'. Bashis has found numerous vulnerabilities in video surveillance products, most notably the 2017 Dahua backdoor, which later resulted in the industry's most widespread hacking attack.

In this note, we examine the TVT backdoor and TVT's response.

******** **************** *** ********* * backdoor ** *** ***** surveillance ********, **** *** ******* its *** '************ ** ******** ***************'.****** *** ***** ******** vulnerabilities ** ***** ************ products, **** ********** **** ***** ********, ***** ***** ******** in ***********'* **** ********** ******* attack.

** **** ****, ** examine *** *** ******** and ***'* ********.

[***************]

*******

****** ******** **** ***************:

**** *******:

********* ************** ** ******** remote ****** ************* - including ***** *** ******** in ***** ****.

*** ******* ** ******** obtain *** ****'* ******** and ********* **** ******* of *** ****** ** especially **********.

** **** ** ********* password:

***** **** ************* ******* such ****** ** '****** errors', ** ****** ****** out ********* ****** *** not ****.

Fix *********

*** **** **** ***** is * *** *********:

*** *** ******** *** firmware **** *** *******, or ** ** *** technical ******* ** *** local ******* ********* ******* to *** *** ***** firmware.

*** ******* ** *** customers ** *** **** get **** ***.

Impact ** ****

*** ** ********* ** OEM *** ********* ** ********** / partners (*** **** **** of **). ** **** ****** suppliers **** ****, ** is ********* ** ** certain ***** ****** ** which ****** *** ********. Moreover, ** *** *** that ********* **** **** OEMs **** *********** ** even ** *** **** future *** ****.

TVT - ~$** ******* *****

*** ** * ******** traded ********* *** ******** ***** exchange, ** *% ** today's ****. *** *******'* 2017 ******* ** ~$** million *** ** *** a ****** ************** ** ~$360 *******.

*** ***** ************ *********, TVT ** ***-****, ******* in ******* ** ********* or ********* *** */**** or ** *** **** of ***** *** */** or ** *** **** of *********.

TVT's *******

*****'* ************, **** *** *** increasingly ******* ******* ** everybody *** ********:

******* ** ******** ****** covered ****** *** *************, no ****** *** *** or *** *** ** how ****** **** ***, which ****** *** ** us ** ** ******** to ******* *** ******* and *******.

** ******, **** ****** are *** ***** **** others, **** ** ****-***** passwords *** *********** ********* in ***** ****.

**** **** ***** **** 'found' ***** ***************:

** ******** ***** * vulnerabilities **** * ***** help **** ******** ******** ******.

*** ********* ****** *** customers *** ****** ****** not ** ******* **** if ***** *** ****-***** passwords ** ***'* *** code, **** ***** *** need ** '****' **** since **** *** **** in *****. ********, *** only '*****' **** ***** Bashis ******** ** *** gave **** ** **** before *** ****** **********.

Comments (17)

*** ***** *** ******* ** **** *** ******, ********* *** "TVT ****" ******* ~**** *********.

********** "****://**.***.**.**:****/***/********/*****/************.***" ***** *** *** ******** ***** **** *** ***** page *** ** ***** **** ** *** *****.

*** ****** **** ****** '********:' ***** **** **** >****

**

******. * *** **** **** ** ** **** ***** ******* around ** *** **** ** **** ****** ** ****** ******. Will ** **** ************* *****.

...** *** **** ** **** ****** ** ****** ******.

*. **/****-**** *** *** **-****** ******

*. *** ******* ********** ****** + ******** *****

*. ****** ********* ********** *** ******

*. **** * **** ******.

********** *******.

********* ******* ** ** **** *** ********** ** **** *** plane.

******* ***

** **** * **** *****? ***, *********** ** *** * ********** *******:

** ********** *** ****** **** **** **** *** **** ** a ********** *** ******** ****** *****, **** **** **** ******* NVRs. * **** ****** **** ***** ******** *** *****, *** never ***** ***** **** ** *** ******* ** *** ******* I **** **** ******** ** **************.

***, *********** ** *** * ********** *******:

******* ***** **-*** **** ***** ************ *********.

**** **** **** *** *** ***** ** *** *** ****** (not ******* **** ****** ******** ** ******) ** ** ************* just ** ******** *** ****-***** ******** ** *** ***** **** of *** *** *********?

*******

**** *** ***** **** ***** ** **** ***/***** **** *****, or ** **** ***** *** ******** ****?

****'* *** ** **** *********** ** ****** ****

*** **** ******* ** ** *******, ****, ** ****...** *** of *** *****?

***** **'* ***** ***** *******, **?

***:****://**.***.***.**/****/***.****

***** **’* ***** ***** *******, **?

***** *** *****, ***** ‘*********’ *** **** ******* *****?

*** ** *** ******* ** *** ********* **** ** ******** properly ** ** ** ** *** ***** ********. *** ****** upgrading ****** **** ** *** ***, ***we ****** **** ********* ** **** ** ******* *** ** ********* ** ***** *******.

****, *** *** ****** ***** ****...

"** ******** ***** * *************** **** * ***** **** **** 3******* ******** ******. * ** **** *** ****** ****** *** firmware, *** *** ** **** ** ******* *** *******, ** even ****** *** **** ** ******* ** ************ ****-*** ** there. ** ********* *** *** * ****** ** ******** ** proper *** ** ***** *** *************, ** ***** ** ***** the ******** **** ** *** ******."

* ***** **** *** ** **** ********* ** *******, *********** as **** *** ** ***** *** ****** ********.

* *** **************, ***** ***** ****** ** **** ***** ****!

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