7.5
HIGH
CVE-2018-12395
Mozilla Firefox WebRequest API Domain Fronting Bypass Vuln
Description

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.

INFO

Published Date :

Feb. 28, 2019, 6:29 p.m.

Last Modified :

Oct. 3, 2019, 12:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2018-12395 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux_desktop
2 Redhat enterprise_linux_server
3 Redhat enterprise_linux_workstation
4 Redhat enterprise_linux_server_eus
1 Mozilla firefox
2 Mozilla firefox_esr
1 Canonical ubuntu_linux
1 Debian debian_linux
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-12395.

URL Resource
http://www.securityfocus.com/bid/105718 VDB Entry Third Party Advisory
http://www.securitytracker.com/id/1041944 VDB Entry Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3005 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3006 Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1467523 Issue Tracking Permissions Required Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201811-04 Third Party Advisory
https://usn.ubuntu.com/3801-1/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4324 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-26/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-27/ Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-12395 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-12395 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-284 CWE-20 NVD-CWE-noinfo
  • Initial Analysis by [email protected]

    Mar. 01, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://security.gentoo.org/glsa/201811-04 No Types Assigned https://security.gentoo.org/glsa/201811-04 Third Party Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2018-27/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2018-27/ Vendor Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2018-26/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2018-26/ Vendor Advisory
    Changed Reference Type https://usn.ubuntu.com/3801-1/ No Types Assigned https://usn.ubuntu.com/3801-1/ Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3006 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3006 Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2018/dsa-4324 No Types Assigned https://www.debian.org/security/2018/dsa-4324 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3005 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3005 Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html Mailing List, Third Party Advisory
    Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1467523 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1467523 Issue Tracking, Permissions Required, Vendor Advisory
    Changed Reference Type http://www.securityfocus.com/bid/105718 No Types Assigned http://www.securityfocus.com/bid/105718 Third Party Advisory, VDB Entry
    Changed Reference Type http://www.securitytracker.com/id/1041944 No Types Assigned http://www.securitytracker.com/id/1041944 Third Party Advisory, VDB Entry
    Added CWE CWE-284
    Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 63.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 60.3
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 01, 2019

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2018/dsa-4324 [No Types Assigned]
    Added Reference https://usn.ubuntu.com/3801-1/ [No Types Assigned]
    Added Reference https://security.gentoo.org/glsa/201811-04 [No Types Assigned]
    Added Reference https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2018:3006 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2018:3005 [No Types Assigned]
    Added Reference http://www.securitytracker.com/id/1041944 [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/105718 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-12395 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-12395 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.97 }} -0.89%

score

0.83655

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability