Bug 1039420 (CVE-2013-5612) - CVE-2013-5612 Mozilla: Character encoding cross-origin XSS attack (MFSA 2013-106)
Summary: CVE-2013-5612 Mozilla: Character encoding cross-origin XSS attack (MFSA 2013-...
Status: CLOSED ERRATA
Alias: CVE-2013-5612
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20131210,repor...
Keywords: Security
Depends On:
Blocks: 1030244
TreeView+ depends on / blocked
 
Reported: 2013-12-09 04:15 UTC by Huzaifa S. Sidhpurwala
Modified: 2019-06-08 19:49 UTC (History)
4 users (show)

(edit)
Clone Of:
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Last Closed: 2013-12-12 04:15:39 UTC


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:1812 normal SHIPPED_LIVE Critical: firefox security update 2013-12-11 10:27:00 UTC
Red Hat Product Errata RHSA-2013:1823 normal SHIPPED_LIVE Important: thunderbird security update 2013-12-11 22:26:18 UTC

Description Huzaifa S. Sidhpurwala 2013-12-09 04:15:02 UTC
Security researcher Masato Kinugawa discovered that if a web page is missing character set encoding information it can inherit character encodings across navigations into another domain from an earlier site. Only same-origin inheritance is allowed according to the HTML5 specification. This issue allows an attacker to add content that will be interpreted one way on the victim site, but which may then behave differently, evading cross-site scripting (XSS) filtering, when forced into an unexpected character set. Web site authors should always explicitly declare a character encoding to avoid similar issues.

In general these flaws cannot be exploited through email in the Thunderbird and Seamonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts.



External Reference:

http://www.mozilla.org/security/announce/2013/mfsa2013-106.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Masato Kinugawa as the original reporter.

Comment 1 errata-xmlrpc 2013-12-11 05:28:02 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 5

Via RHSA-2013:1812 https://rhn.redhat.com/errata/RHSA-2013-1812.html

Comment 2 errata-xmlrpc 2013-12-11 17:27:34 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 5

Via RHSA-2013:1823 https://rhn.redhat.com/errata/RHSA-2013-1823.html


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