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CVE-2018-12395

Good to know:

Date: February 28, 2019

By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

Language: Unix

Severity Score

Related Resources (5)

https://access.redhat.com/security/cve/CVE-2018-12395
https://security.gentoo.org/glsa/201811-04
https://www.mozilla.org/security/advisories/mfsa2018-27/
https://nvd.nist.gov/vuln/detail/CVE-2018-12395
https://www.mend.io/vulnerability-database/CVE-2018-12395

Severity Score

Weakness Type (CWE)

Improper Access Control

CWE-284

Insufficient Information

NVD-CWE-noinfo

Top Fix

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Upgrade Version

CVSS v3

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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