Bug 1479209 - (CVE-2017-7791) CVE-2017-7791 Mozilla: Spoofing following page navigation with data: protocol and modal alerts (MFSA 2017-19)
CVE-2017-7791 Mozilla: Spoofing following page navigation with data: protocol...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170808,repor...
: Security
Depends On:
Blocks: 1477026
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Reported: 2017-08-08 02:46 EDT by Doran Moppert
Modified: 2017-08-10 19:21 EDT (History)
3 users (show)

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Description Doran Moppert 2017-08-08 02:46:06 EDT
The `data:` protocol can be used to create a modal alert that will render over arbitrary domains following page navigation, allowing for the spoofing of the origin of the iframe content.


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-19/#CVE-2017-7791


Acknowledgements:

Name: the Mozilla project
Upstream: Jose María Acuña
Comment 1 errata-xmlrpc 2017-08-10 19:21:13 EDT
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6

Via RHSA-2017:2456 https://access.redhat.com/errata/RHSA-2017:2456

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