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Default Passwords

 

 

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tortise at paradise

Jun 1, 2012, 2:54 PM

Post #1 of 4 (304 views)
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Default Passwords

I've noted a post that contained a my_th_tv password (obfus_cation
intended) that I'd seen before. A quick Googling confirmed this
observation. I had assumed that the passwords used by the my_th_tv
backend were randomly generated however it appears that is not the case.
It maybe that they are specified per my_th_bu_ntu version, or some other
schema? If I am correct anyone wishing any degree of security on their
my_th_tv box (which I think means those who expose it to the web) should
change the default password. Is this correct? Can anyone expand on this?

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nick.rout at gmail

Jun 1, 2012, 3:13 PM

Post #2 of 4 (284 views)
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Re: Default Passwords [In reply to]

On Sat, Jun 2, 2012 at 9:54 AM, tortise <tortise [at] paradise> wrote:
> I've noted a post that contained a my_th_tv password (obfus_cation intended)
> that I'd seen before. A quick Googling confirmed this observation. I had
> assumed that the passwords used by the my_th_tv backend were randomly
> generated however it appears that is not the case. It maybe that they are
> specified per my_th_bu_ntu version, or some other schema? If I am correct
> anyone wishing any degree of security on their my_th_tv box (which I think
> means those who expose it to the web) should change the default password. Is
> this correct?  Can anyone expand on this?

the ubuntu package mythtv-common creates a random password - see the
postinst script. Specifically this line

mythtv_password="$(pwgen -s 8)"

You have the opportunity to override this with your own choice.

Other distros do other things: knoppmyth ran both frontend and backend
as user mythtv with pasword mythtv.

Why the obfuscation? If your mythconverg database is open to the
internet you are extremely foolish.

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tortise at paradise

Jun 1, 2012, 3:26 PM

Post #3 of 4 (286 views)
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Re: Default Passwords [In reply to]

On 2/06/2012 10:13 a.m., Nick Rout wrote:
> On Sat, Jun 2, 2012 at 9:54 AM, tortise<tortise [at] paradise> wrote:
>> I've noted a post that contained a my_th_tv password (obfus_cation intended)
>> that I'd seen before. A quick Googling confirmed this observation. I had
>> assumed that the passwords used by the my_th_tv backend were randomly
>> generated however it appears that is not the case. It maybe that they are
>> specified per my_th_bu_ntu version, or some other schema? If I am correct
>> anyone wishing any degree of security on their my_th_tv box (which I think
>> means those who expose it to the web) should change the default password. Is
>> this correct? Can anyone expand on this?
>
> the ubuntu package mythtv-common creates a random password - see the
> postinst script. Specifically this line
>
> mythtv_password="$(pwgen -s 8)"

Hmmm Try

https://www.google.co.nz/search?q=C1RFOKlE&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-GB:official&client=firefox-a

If it were random why does that password find many seemingly independent
mythtv situations? Perhaps it reflects older practice and the hole has
been plugged more recently? I think you're running 12.04 now Nick?

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nick.rout at gmail

Jun 1, 2012, 3:47 PM

Post #4 of 4 (287 views)
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Re: Default Passwords [In reply to]

On Sat, Jun 2, 2012 at 10:26 AM, tortise <tortise [at] paradise> wrote:
> On 2/06/2012 10:13 a.m., Nick Rout wrote:
>>
>> On Sat, Jun 2, 2012 at 9:54 AM, tortise<tortise [at] paradise>  wrote:
>>>
>>> I've noted a post that contained a my_th_tv password (obfus_cation
>>> intended)
>>> that I'd seen before. A quick Googling confirmed this observation. I had
>>> assumed that the passwords used by the my_th_tv backend were randomly
>>> generated however it appears that is not the case. It maybe that they are
>>> specified per my_th_bu_ntu version, or some other schema? If I am correct
>>> anyone wishing any degree of security on their my_th_tv box (which I
>>> think
>>> means those who expose it to the web) should change the default password.
>>> Is
>>> this correct?  Can anyone expand on this?
>>
>>
>> the ubuntu package mythtv-common creates a random password - see the
>> postinst script. Specifically this line
>>
>> mythtv_password="$(pwgen -s 8)"
>
>
> Hmmm  Try
>
> https://www.google.co.nz/search?q=C1RFOKlE&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-GB:official&client=firefox-a
>
> If it were random why does that password find many seemingly independent
> mythtv situations?  Perhaps it reflects older practice and the hole has been
> plugged more recently?  I think you're running 12.04 now Nick?
>

I can't explain that at all.

I am running 10.04 with 0.24-fixes. Long weekend - might upgrade to
0.25-fixes, but not sure if I want to go to 12.04 or stick to 10.04.

I do have a 12.04-rc install on a usb stick, which I have successfully
run on a laptop and a revo frontend.

I see major bugs being eliminated in 0.25 so it might be time to go for it soon.

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