XSS Auditor

Question

Level 2

200 points

XSS Auditor

Hello,

When connecting with Safari to the administrative web interface of a network device, the console often shows messages like this one:

The XSS Auditor refused to execute a script in 'someurl' because its source code was found within the request. The auditor was enabled as the server sent neither an 'X-XSS-Protection' nor 'Content-Security-Policy' header.

Of course, a lot of functionalities are therefore unavailble through the web interface...

And since I don't have any control upon the pages served by the device, I'm stuck.

Is there a way to (temporarily) turn off the XSS Auditor in Safari?

It looks like there is a xssAuditorEnabled setting in Webcore, but I didn't manage to go very far with that "knowledge"...

TIA,

Axel

Posted on Jul 17, 2014 8:01 AM

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Answer 1

Linc Davis

Level 10

209,547 points

Jul 17, 2014 9:05 AM in response to Axel Luttgens

Safari or Chrome?

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Answer 2

Axel Luttgens Author

Level 2

200 points

Jul 17, 2014 9:13 AM in response to Linc Davis

Safari of course. ;-)

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Answer 3

Linc Davis

Level 10

209,547 points

Jul 17, 2014 9:39 AM in response to Axel Luttgens

There's no way to disable it in the browser that I know of. It can be disabled on the server. You might get different results with another browser, such as Firefox.

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Answer 4

Axel Luttgens Author

Level 2

200 points

Jul 17, 2014 9:55 AM in response to Linc Davis

Linc Davis wrote:

There's no way to disable it in the browser that I know of. It can be disabled on the server.

Not in this case: I have no control over the pages served by the network device.

You might get different results with another browser, such as Firefox.

True; for example, IE under Windows XP doesn't care about such futile security concerns. ;-)

But I would be very pleased to be able to go with Safari (hence my question).

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Answer 5

Axel Luttgens Author

Level 2

200 points

Jul 20, 2014 8:17 AM in response to Axel Luttgens

So, for those who might be facing the same problem...

Very empirically, I managed to find that way for Safari 6.1.5:

defaults write com.apple.Safari "com.apple.Safari.ContentPageGroupIdentifier.WebKit2XSSAuditorEnabled" -bool FALSE

Of course, better to set above value to TRUE once the XSS Auditor deactivation isn't needed anymore. ;-)

HTH,

Axel

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