Re: [NSE] Patch for mongodb.lua

[Martin Holst Swende <martin () swende se>]

On 10/17/2011 08:21 PM, Thomas Buchanan wrote:
> Hello,
>
> I was testing out the mongodb scripts on my local Ubuntu box, and found that
> mongodb.lua (used by mongodb-info.nse) was crashing with a 'nil' table index
> as shown below:
>
> # ./nmap -sT -v -d --script-trace --script=mongodb-info -p 27017,28017
> localhost
> Starting Nmap 5.61TEST2 ( http://nmap.org ) at 2011-10-17 13:03 CDT
> <...>
> NSE: Starting mongodb-info against 127.0.0.1:27017.
> <...>
> NSE: MngoDb: Read element name 'localTime' (type:9), data left: 668
> NSE: Bson-ERR:Getter for 9 not implemented
> NSE: MngoDb:Parsed (nil='nil'), data left : 668
> NSE: mongodb-info against 127.0.0.1:27017 threw an error!
> /home/thomas/dev/svn/nmap/nselib/mongodb.lua:232: table index is nil
> stack traceback:
>     /home/thomas/dev/svn/nmap/nselib/mongodb.lua:232: in function
> '_elements_to_dict'
>     /home/thomas/dev/svn/nmap/nselib/mongodb.lua:278: in function 'fromBson'
>     /home/thomas/dev/svn/nmap/nselib/mongodb.lua:572: in function 'query'
>     /home/thomas/dev/svn/nmap/scripts/mongodb-info.nse:76: in function
> </home/thomas/dev/svn/nmap/scripts/mongodb-info.nse:56>
>     (tail call): ?
> <more output>
>
> Looking at the BSON documentation, it seems data type 9 is a timestamp
> value, 8 bytes in length, so I put together the following simple patch which
> makes the script work for me.
Good work!
/Martin


> Nmap scan report for localhost (127.0.0.1)
> <...>
> PORT      STATE SERVICE REASON
> 27017/tcp open  unknown syn-ack
> | mongodb-info:
> |   MongoDB Build info
> <snip all other output>
>
> Thanks,
>
> Thomas
>
>
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