[Xerte-dev] Re: Upload and security

Pat @ Pgogy xerte at pgogywebstuff.com
Wed May 22 12:25:12 BST 2013


I would expect some browsers will bork at that

On 22 May 2013, at 12:05, Julian Tenney <Julian.Tenney at nottingham.ac.uk> wrote:

> <script src=http://www.nottingham.ac.uk/toolkits/blah/myScript.jpg/>
>  
> From: xerte-dev-bounces at lists.nottingham.ac.uk [mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Pat @ Pgogy 
> Sent: 22 May 2013 11:34
> To: For Xerte technical developers
> Subject: [Xerte-dev] Re: Upload and security
>  
> Disguise in what way?
> 
> On 22 May 2013, at 11:01, Julian Tenney <Julian.Tenney at nottingham.ac.uk> wrote:
> 
> Is it the case now that only logged in users can run anything through upload.php?
>  
> Otherwise it’s not just javascript you can disguise, but anything else. I’d be happy with uploading javascript being limited to authorised users, it’s people clobbering the system from outside that worries me.
>  
> From: xerte-dev-bounces at lists.nottingham.ac.uk [mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Smith, John
> Sent: 22 May 2013 10:42
> To: For Xerte technical developers
> Subject: [Xerte-dev] Re: Upload and security
>  
> .js extension is in the blacklist but as Julian has proved it is a bit pointless…
>  
> What we need is to whitelist and do some form of mime detection, but I’ve not been able to get anything working reliably yet…
>  
> Regards,
>  
> John Smith
> Learning Technologist
> School of Health & Life Sciences
> Glasgow Caledonian University
>  
> From: xerte-dev-bounces at lists.nottingham.ac.uk [mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Pat @ Pgogy 
> Sent: Wednesday, May 22, 2013 9:59 AM
> To: For Xerte technical developers
> Subject: [Xerte-dev] Re: Upload and security
>  
> JavaScript is in the banned list I think
>  
> I'd ask what you want the bootstrap to be - a mini website for Non-techies or a sort of techie play space?
>  
>  
> 
> On 21 May 2013, at 10:00, Julian Tenney <Julian.Tenney at nottingham.ac.uk> wrote:
> 
> Just reprising a recent conversation about uploading javascript. You guys weren’t keen. I just uploaded a txt file with javascript in it, loaded via a script tag in the bootstrap template and it – of course – executes, but we knew that anyway.
>  
> Is it the case that only authorised users – those logged in – can get anything through upload.php? Should authorised users be able to upload javascript?
>  
> Second and slightly related question, playing around with the bootstrap template wizard: I got it adding canvas, and thought about other userful building blocks for developers. You could define them in a text icon <canvas width=”500” height=”350”/> and then script them from a script icon, so are we gaining anything at the expense of confusing users who don’t know what scripts and canvases do? I just though ‘well, where does it end? Divs, styles, etc’ and we can do it all with text anyway. But in looking at some of this stuff, it would really be handy to be able to upload scripts, because writing anything more than trivial in the wizard is going to be gribbly.
>  
> What do you think?
>  
> <image001.png>
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