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.

******** **************** *** ********* * ******** in *** ***** ************ products, **** *** ******* its *** '************ ** ******** ***************'.****** *** ***** ******** *************** in ***** ************ ********, **** ********** **** ***** ********, ***** ***** ******** 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 *** ********* ** ********** / ******** (see **** **** ** 79). ** **** ****** 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 ** ***'* *** ****, they ***** *** **** to '****' **** ***** they *** **** ** there. ********, *** **** 'found' **** ***** ****** reported ** *** **** them ** **** ****** his ****** **********.

Comments (18)

Undisclosed #1

04/09/18 02:57pm

*** ***** *** ******* to **** *** ******, searching *** "*** ****" returns ~**** *********.

 

********** "****://**.***.**.**:****/***/********/*****/************.***" ***** *** the ******** ***** **** the ***** **** *** at ***** **** ** the *****.

Undisclosed End User #2

In reply to Undisclosed #1 | 04/09/18 03:27pm

*** ****** **** ****** 'AuthInfo:' ***** **** **** >110K

 

** 

Undisclosed #1

In reply to Undisclosed End User #2 | 04/09/18 03:33pm

******.  * *** **** able ** ** **** brief ******* ****** ** the **** ** **** flight ** ****** ******.  Will ** **** ************* later.

Undisclosed #3

In reply to Undisclosed #1 | 04/09/18 04:01pm

...** *** **** ** this ****** ** ****** crappy.

*. **/****-**** *** *** in-flight ****** 

*. *** ******* ********** attack + ******** *****

*. ****** ********* ********** for ******

*. **** * **** flight.

Undisclosed #1

In reply to Undisclosed #3 | 04/09/18 04:09pm

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

********* ******* ** ** seat *** ********** ** hack *** *****.

 

John Honovich

IPVM | In reply to Undisclosed #1 | 04/09/18 04:13pm

******* ***

** **** * **** thing? ***, *********** ** *** * horrendous *******:

Dan Droker

LONG Building Technologies | In reply to John Honovich | 04/09/18 04:49pm

** ********** *** ****** been **** **** *** kind ** * ********** DIY ******** ****** *****, with **** **** ******* NVRs. * **** ****** past ***** ******** *** years, *** ***** ***** their **** ** *** context ** *** ******* I **** **** ******** in **************.

Undisclosed #1

In reply to John Honovich | 04/09/18 05:03pm

***, ********* ** ** *** * horrendous *******:

******* ***** **-*** **** their ************ *********.

Shay Fogel

04/09/18 05:45pm

**** **** **** *** can ***** ** *** TVT ****** (*** ******* with ****** ******** ** course) ** ** ************* just ** ******** *** hard-coded ******** ** *** login **** ** *** web *********?

 

bashis mcw

In reply to Shay Fogel | 04/09/18 05:48pm

*******

Undisclosed Integrator #4

In reply to bashis mcw | 04/09/18 06:30pm

**** *** ***** **** Clone ** **** ***/***** were *****, ** ** this ***** *** ******** mess?

bashis mcw

In reply to Undisclosed Integrator #4 | 04/09/18 06:33pm

****'* *** ** **** connections ** ****** ****

Undisclosed Manufacturer #5

04/10/18 12:35pm

*** **** ******* ** IP *******, ****, ** DVRs...or *** ** *** above?  

bashis mcw

In reply to Undisclosed Manufacturer #5 | 04/10/18 04:53pm

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

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

 

Undisclosed #3

In reply to bashis mcw | 04/10/18 06:49pm

***** **’* ***** ***** message, **?

***** *** *****, ***** ‘ignorance’ *** **** ******* about?

*** ** *** ******* in *** ********* **** be ******** ******** ** us ** ** *** local ********. *** ****** upgrading ****** **** ** its ***, ***we ****** **** ********* ** **** ** ******* *** ** ********* ** ***** *******.

 

bashis mcw

In reply to Undisclosed #3 | 04/10/18 09:06pm

****, *** *** ****** wrong ****...

Undisclosed Manufacturer #6

In reply to bashis mcw | 04/11/18 12:51am

"** ******** ***** * vulnerabilities **** * ***** help **** ******** ******** ******. * of **** *** ****** inside *** ********, *** can ** **** ** control *** *******, ** even ****** *** **** or ******* ** ************ know-how ** *****. ** seriously *** *** * update ** ******** ** proper *** ** ***** the *************, ** ***** to ***** *** ******** risk ** *** ******."

* ***** **** *** as **** ********* ** grammar, *********** ** **** did ** ***** *** ridden ********.

* *** **************, ***** alone ****** ** **** their ****!

Undisclosed End User #2

10/15/19 06:14pm

*********, ** ***** **** Mirai ***** (?) *** started ** ******* **** vulnerability.

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

Virustotal *******

**********(*******)

**********(*******)

**********(*******/***)

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