Bug 1291599 – CVE-2015-7223 Mozilla: Privilege escalation vulnerabilities in WebExtension APIs (MFSA 2015-148)

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Bug 1291599 - (CVE-2015-7223) CVE-2015-7223 Mozilla: Privilege escalation vulnerabilities in WebExtension APIs (MFSA 2015-148)

Summary:	CVE-2015-7223 Mozilla: Privilege escalation vulnerabilities in WebExtension A...

Status:	CLOSED NOTABUG

Aliases:	CVE-2015-7223

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	urgent Severity urgent
Target Milestone:	---
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Assigned To:	Red Hat Product Security
QA Contact:
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URL:
Whiteboard:	impact=critical,public=20151216,repor...
Keywords:	Security

Depends On:
Blocks:	1290704
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Reported:	2015-12-15 04:01 EST by Huzaifa S. Sidhpurwala
Modified:	2015-12-16 04:04 EST (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
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Last Closed:	2015-12-16 04:04:20 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Huzaifa S. Sidhpurwala 2015-12-15 04:01:18 EST

Mozilla developer Kris Maglione reported a mechanism where WebExtension APIs could be used to escalate privilege. This could allow arbitrary web content to execute code with the privileges of a particular WebExtension when using these API calls. Depending on the privileges of the extension used, this could result in personal information theft and cross-site scripting (XSS) attacks, including theft of browser cookies. This is mitigated by the requirement to have a WebExtension installed that is vulnerable to this issue. 


External Reference:

https://www.mozilla.org/security/announce/2015/mfsa2015-148.html


Acknowledgements:

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

Statement:

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.

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