Can't understand "Trip to the past"

[fwjmath]

Simply can't figure out what this challenge wants.
I've tried to fake a date in my http request, though I know that a request needs no date.
Also tried to fake the user-agent, no help neither.

Can anyone give me a really really small hint? Thanks.

fwjmath.

[gfoot]

I haven't solved it, but I guess the fact that it quotes your user agent is a clue. Using tools that don't send a user agent, it just refers to you as "anonymous" or something like that.

I guess it's waiting for a specific user agent, but there's not much clue as to which one.

[Grammaton]

After some tries, i stopped this level.
I did some workarounds with some injections in user-agent => no luck
tried some extra headers like, date, cache-control and so => no luck

I figured out that user-agent is only cheking for some strings.
i assume something like this pseudo code:
if insideuseragent("MSIE") return "IE"
if insideuseragent("Opera") return "Opera"
if insideuseragent("Konqueror") return "Konqueror"
if insideuseragent("Chrome") return "Chrome"
if insideuseragent("Safari") return "Safari"
if insideuseragent("Gecko") return "Firefox"
... maybe there are more string compares, feel free to complete my list
return "anonymous"

cheers,
Grammaton

[snibril]

You are to young

[fwjmath]

You are to young

Though, I just got it down, with a lot of searches.
Which is more confusing is that, at first I used an older version of the specific user-agent string, but it didn't accept it. Next I tried a newer (of course relatively speaking) one, and buff! It worked!

But you're right, snibril, I'm too young to solve this easily.

[Grammaton]

Thank you for the hint snibril!
I got it, too

[gfoot]

I tried setting it to the first web browser ever, and it didn't work. I guess that's just too old then.

[sigi]

I tried setting it to the first web browser ever, and it didn't work. I guess that's just too old then.

There is one particular web browser which springs to mind easily to anybody who has witnessed the birth of the WWW, but of course it's not used anymore for a long time by now.

If you've never heard of it before it's of course impossible to guess out of the blue but certainly possible to research. Some Wikipedia articles about the history of the WWW will guide you into the right direction.

I actually downloaded the source code for that browser to make sure I got the correct user agent string (after some failures). I'm not sure if that is really necessary, it depends on how fascist the checking routine is about the string.

You might even find a working version of the browser in question (depending on your operating system, this might not be easy, however!).

[the_impaler]

[quote="sigi"][quote="gfoot"]I tried setting it to the first web browser ever, and it didn't work. I guess that's just too old then.[/quote]
There is one particular web browser which springs to mind easily to anybody who has witnessed the birth of the WWW, but of course it's not used anymore for a long time by now.

If you've never heard of it before it's of course impossible to guess out of the blue but certainly possible to research. Some Wikipedia articles about the history of the WWW will guide you into the right direction.

I actually downloaded the source code for that browser to make sure I got the correct user agent string (after some failures). I'm not sure if that is really necessary, it depends on how fascist the checking routine is about the string.

You might even find a working version of the browser in question (depending on your operating system, this might [i]not[/i] be easy, however!).[/quote]

Looking into source code is always encouraged by this group of hackers.

[gfoot]

There is one particular web browser which springs to mind easily to anybody who has witnessed the birth of the WWW, but of course it's not used anymore for a long time by now.

Granted, but it wasn't the first web browser ever. Maybe it was the first to pass a user agent header?

[lukas]

I need a little help,

I also tried to simulate an another browser client and another post date

then I found this Thread and read the paragraph "not the oldest Broser... a newer one works"
and "a search in wikipedia will help"

So I tried some browser versions:

Netscape:

Code: Select all

	1.1
	1.22
	2.0
	2.02
	3.04
	4.03
	4.04
	4.07
	4.08navonly
	4.5comm
	4.61comm
	4.72comm
	4.74communicator
	4.75communicator
	4.77communicator
	4.8
	6.0
	7.1

and Mosaic:

Code: Select all

	2.1
	3.0

But nothing work

really need help

[BlackInTheBox]

ahh, got it now, thanks.. at first i was clued in on the way back machine but now i see just how wrong i was.

[Washik]

Because You are not a Hacher........
Thanks Advance For Understanding.

[Millennium]

I was sure that it was Netscape but even that's not working -_-

[BadCop]

Hey there,

i tested many user agent strings from http://www.useragentstring.com/pages/us ... string.php
according to the history of web-browsers http://upload.wikimedia.org/wikipedia/c ... owsers.svg

Nothing works.

Any suggestions? please PM me