Rohan McLeod <[email protected]> writes:

> James Harper wrote:
>>> NetComm ADSL2+ Router NB6_REV2_16M
>>> Software Version: 3.65p
>>> And I'm in. It's a shell, but can't tell what. ps shows a 'sh' process 
>>> running.
>> Actually:
>>> ps --help
>> BusyBox v1.00 (2010.01.12-11:52+0000) multi-call binary
>> So... not bash.
> thanks , interesting well that's a relief !

IMO this is not a reliable test.

I know of at least Thecus NAS installs which ship busybox,
but include bash.  Such a system would show the same "I'm busybox"
output when running ps in bash, since it is not a bash builtin.

I don't know offhand of a reliable test.
Off the top of my head, I'd suggest "echo $BASH_VERSION",
which seems to be under --posix (which more-or-less correponds to
invoking as argv[0] = "/bin/sh").

Probably the Right Thing would be to test for the actual vuln.

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