Bug 1479207 (CVE-2017-7788)

Summary: CVE-2017-7788 Mozilla: Sandboxed about:srcdoc frames do not inherit CSP directives (MFSA 2017-18)
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2017-08-09 01:14:36 UTC Type: ---
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Bug Blocks: 1477026    

Description Doran Moppert 2017-08-08 06:42:58 UTC 
When an `iframe` has a `sandbox` attribute and its content is specified using `srcdoc`, that content does not inherit the containing page’s Content Security Policy (CSP) as it should unless the sandbox attribute included `allow-same-origin`.


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/#CVE-2017-7788


Acknowledgements:

Name: the Mozilla project
Upstream: Muneaki Nishimura