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muriel_volestrangler

(102,389 posts)
Mon Oct 23, 2023, 02:13 PM Oct 2023

Strange 403 Forbidden reply with a certain phrase in quotes - others get it too

Post a reply with anything in the title, but the body consisting of the following, but enclosed in either single or double quotes:

not connected in

I get a "403 forbidden" reply when I do.

15 replies = new reply since forum marked as read
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Strange 403 Forbidden reply with a certain phrase in quotes - others get it too (Original Post) muriel_volestrangler Oct 2023 OP
I did it. Got the same result. Glorfindel Oct 2023 #1
It's bizarre - drop the "in", or the quotes, and it's OK muriel_volestrangler Oct 2023 #3
"What's bosy"? questionseverything Oct 2023 #2
Body? marybourg Oct 2023 #4
Yep - corrected (nt) muriel_volestrangler Oct 2023 #5
Anything in the title questionseverything Oct 2023 #6
Hmm - slightly different quotes muriel_volestrangler Oct 2023 #8
Anything questionseverything Oct 2023 #11
Ah - on my (British) laptop keyboard the standard double quote is purely vertical muriel_volestrangler Oct 2023 #13
Cool 😎 questionseverything Oct 2023 #14
I actually got a "403 Forbidden" message. Glorfindel Oct 2023 #7
Sorry, it was 403 - I wrote 404 by accident muriel_volestrangler Oct 2023 #9
There is protection against hack attacks usonian Oct 2023 #10
Yeah, I was wondering if that is what causes it muriel_volestrangler Oct 2023 #12
There are also those temporary blockages. usonian Oct 2023 #15

muriel_volestrangler

(102,389 posts)
8. Hmm - slightly different quotes
Mon Oct 23, 2023, 02:47 PM
Oct 2023

If I use the slightly skewed double quote - ” - it works OK, as it did for you. If I use the purely vertical double quote - " - I get the 403 Forbidden error.

muriel_volestrangler

(102,389 posts)
13. Ah - on my (British) laptop keyboard the standard double quote is purely vertical
Mon Oct 23, 2023, 03:07 PM
Oct 2023

Producing the slightly skewed one is a lot harder (I copied from your post).

A post below suggests it's a security feature. You did help by showing it's only certain types of quotes are involved.

Glorfindel

(9,911 posts)
7. I actually got a "403 Forbidden" message.
Mon Oct 23, 2023, 02:31 PM
Oct 2023

Bizarre, indeed. Who knew that there at least two categories of "Forbidden"?

usonian

(13,539 posts)
10. There is protection against hack attacks
Mon Oct 23, 2023, 02:58 PM
Oct 2023

and some characters are apparently forbidden, as is some HTML.

As an outside example, Mister Null has real problems with computers, as it's a reserved word.

https://www.wired.com/2015/11/null/

But there's a dark side to being a Null, and you coders out there are way ahead of me on this. For those of you unwise in the ways of programming, the problem is that "null" is one of those famously "reserved" text strings in many programming languages. Making matters worse is that software programs frequently use "null" specifically to ensure that a data field is not empty, so it's often rejected as input in a web form.


Quotes and html blocks can contain payloads designed to inject code or database commands.

"The internet's one tough town"

muriel_volestrangler

(102,389 posts)
12. Yeah, I was wondering if that is what causes it
Mon Oct 23, 2023, 03:03 PM
Oct 2023

I see that "not connected" is an SQL term. But it is, for some reason, the addition of "in" to that that causes the problem.

usonian

(13,539 posts)
15. There are also those temporary blockages.
Mon Oct 23, 2023, 03:12 PM
Oct 2023

But I thought that would be off-topic.

But strange things do happen. I can't access archive.{md, ph, is } when using iCloud Private Relay, a kind of vpn.

When I was doing admin work, users would ask me to "fix the internet" when it went down. I would check our stuff and wait it out. Usually a fiber cable cut by bulldozers somewhere in San Jose or a router programmed wrong in a data center in an unknown location.

Monitoring systems pick those up and alert staff. I worked on one and it was interesting to implement.

There's a history behind monitoring equipment and the Perl programming language. For computer geeks. Later.

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