CVE-2018-5175 Information

Description

A mechanism to bypass Content Security Policy (CSP) protections on sites that have a \script-src\ policy of 'strict-dynamic’. If a target website contains an HTML injection flaw an attacker could inject a reference to a copy of the \require.js\ library that is part of Firefox’s Developer Tools and then use a known technique using that library to bypass the CSP restrictions on executing injected scripts. This vulnerability affects Firefox 60.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/104139 http://www.securitytracker.com/id/1040896 https://bugzilla.mozilla.org/show_bug.cgi?id=1432358 https://usn.ubuntu.com/3645-1/ https://www.mozilla.org/security/advisories/mfsa2018-11/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1