full-disclosure - yahoo open redirect vulnerability full disclosur

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Date: Thu, 13 Feb 2014 00:04:02 +0800
From: Jing Wang <justqdjing@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: yahoo open redirect vulnerability full disclosur

Dear Sir/Madam,

I am a student from NTU, Singapore. My name is Wang Jing. I just found a
yahoo open redirect vulnerability and reported it to yahoo 10 days ago.

However, yahoo did nothing about it.

The following is full disclosure. Attachment is prove of concept video. And
the link below is poc video I just posted on youtube.
http://www.youtube.com/watch?v=GTd1Gkj6OUY&feature=youtu.be

I just found one open url redirection vulnerability in yahoo.

This attacks doesn't even need users to login yahoo. My test is on all
browsers in all computer systems.

I use "poc of exploit" to denote that url redirection works.

Now I will use a website just built by me for the following tests. The
website is "http://www.tetraph.com". We can think this website is
malicious, because it is fully under my control.

vulnerable url:

http://ads.yahoo.com/clk?3,eJyti18LgjAUxb-QD246p4we5t8UZw0W4d50mKGGEYXZp09N.AT94J5zLvceYBCF9UtV2QgrZakSlgSYhrKLElVloemEEAPbEJuOhTQ6k0nIB789R9Rd9tToJV2pp3Frb8lHe9Z9cD-8KP-d3yxz6F.wnITGa56847z2B9qH1mMMmLu9RTHKxQlKkTSpqEEu6JOJsGMjuLKPbFPR3aQvGyZiJP0W5Hxr7jRN.wKrBU.A,http%3A%2F%2Fwww.facebook.com%2Fcampaign%2Flanding.php%3Fcampaign_id%3D127305407328718

poc exploit:

http://ads.yahoo.com/clk?3,eJyti18LgjAUxb-QD246p4we5t8UZw0W4d50mKGGEYXZp09N.AT94J5zLvceYBCF9UtV2QgrZakSlgSYhrKLElVloemEEAPbEJuOhTQ6k0nIB789R9Rd9tToJV2pp3Frb8lHe9Z9cD-8KP-d3yxz6F.wnITGa56847z2B9qH1mMMmLu9RTHKxQlKkTSpqEEu6JOJsGMjuLKPbFPR3aQvGyZiJP0W5Hxr7jRN.wKrBU.A,http%3A%2F%2Fwww.google.com

http://ads.yahoo.com/clk?3,eJyti18LgjAUxb-QD246p4we5t8UZw0W4d50mKGGEYXZp09N.AT94J5zLvceYBCF9UtV2QgrZakSlgSYhrKLElVloemEEAPbEJuOhTQ6k0nIB789R9Rd9tToJV2pp3Frb8lHe9Z9cD-8KP-d3yxz6F.wnITGa56847z2B9qH1mMMmLu9RTHKxQlKkTSpqEEu6JOJsGMjuLKPbFPR3aQvGyZiJP0W5Hxr7jRN.wKrBU.A,http%3A%2F%2Fwww.tetraph.com

poc video:

http://www.youtube.com/watch?v=GTd1Gkj6OUY&feature=youtu.be

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