CVE-2017-7788 Information

Description

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. This vulnerability affects Firefox 55.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/100379 http://www.securitytracker.com/id/1039124 https://bugzilla.mozilla.org/show_bug.cgi?id=1073952 https://www.mozilla.org/security/advisories/mfsa2017-18/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8