Bug 877618 (CVE-2012-4203)

Summary: CVE-2012-4203 Mozilla: Javascript: URLs run in privileged context on New Tab page (MFSA 2012-95)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: security-response-team
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2012-11-17 11:24:21 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 873088    

Description Huzaifa S. Sidhpurwala 2012-11-17 11:20:28 UTC 
Security researcher kakzz.ng reported that if a javascript: URL is selected from the list of Firefox "new tab" page, the script will inherit the privileges of the privileged "new tab" page. This allows for the execution of locally installed programs if a user can be convinced to save a bookmark of a malicious javascript: URL. 


External Reference:

http://www.mozilla.org/security/announce/2012/mfsa2012-95.html


Acknowledgements:

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

Statement:

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