5.9
MEDIUM
CVE-2018-18506
"Firefox Localhost Proxy PAC File Vulnerability"
Description

When proxy auto-detection is enabled, if a web server serves a Proxy Auto-Configuration (PAC) file or if a PAC file is loaded locally, this PAC file can specify that requests to the localhost are to be sent through the proxy to another server. This behavior is disallowed by default when a proxy is manually configured, but when enabled could allow for attacks on services and tools that bind to the localhost for networked behavior if they are accessed through browsing. This vulnerability affects Firefox < 65.

INFO

Published Date :

Feb. 5, 2019, 9:29 p.m.

Last Modified :

March 17, 2023, 6:31 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2018-18506 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
2 Redhat enterprise_linux_desktop
3 Redhat enterprise_linux_server
4 Redhat enterprise_linux_workstation
5 Redhat enterprise_linux_server_aus
6 Redhat enterprise_linux_server_eus
7 Redhat enterprise_linux_server_tus
8 Redhat enterprise_linux_eus
1 Mozilla firefox
1 Canonical ubuntu_linux
1 Debian debian_linux
1 Opensuse leap
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-2018-18506.

URL Resource
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00035.html Broken Link Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00043.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00023.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html Mailing List Third Party Advisory
http://www.securityfocus.com/bid/106773 Broken Link Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:0622 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0623 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0680 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0681 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0966 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1144 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00024.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00000.html Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Apr/0 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Mar/28 Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201904-07 Third Party Advisory
https://usn.ubuntu.com/3874-1/ Third Party Advisory
https://usn.ubuntu.com/3927-1/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4411 Third Party Advisory
https://www.debian.org/security/2019/dsa-4420 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2019-01/ 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-2018-18506 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-18506 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
  • Modified Analysis by [email protected]

    Mar. 17, 2023

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00035.html Mailing List, Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00035.html Broken Link, Mailing List, Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html Mailing List, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/106773 Third Party Advisory, VDB Entry http://www.securityfocus.com/bid/106773 Broken Link, Third Party Advisory, VDB Entry
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:0966 No Types Assigned https://access.redhat.com/errata/RHSA-2019:0966 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:1144 No Types Assigned https://access.redhat.com/errata/RHSA-2019:1144 Third Party Advisory
    Changed Reference Type https://seclists.org/bugtraq/2019/Apr/0 Third Party Advisory https://seclists.org/bugtraq/2019/Apr/0 Mailing List, Third Party Advisory
    Changed 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_aus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *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_eus:8.1:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* *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_aus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-254 NVD-CWE-noinfo
  • CVE Modified by [email protected]

    May. 13, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:1144 [No Types Assigned]
  • CVE Modified by [email protected]

    May. 07, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:0966 [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 05, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 03, 2019

    Action Type Old Value New Value
    Changed Reference Type https://security.gentoo.org/glsa/201904-07 No Types Assigned https://security.gentoo.org/glsa/201904-07 Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00043.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00043.html Mailing List, Third Party Advisory
    Changed Reference Type https://seclists.org/bugtraq/2019/Apr/0 No Types Assigned https://seclists.org/bugtraq/2019/Apr/0 Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2019/dsa-4420 No Types Assigned https://www.debian.org/security/2019/dsa-4420 Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/04/msg00000.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/04/msg00000.html Mailing List, Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00023.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00023.html Mailing List, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* OR *cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Apr. 03, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00023.html [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 02, 2019

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201904-07 [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 01, 2019

    Action Type Old Value New Value
    Added Reference https://seclists.org/bugtraq/2019/Apr/0 [No Types Assigned]
    Added Reference https://lists.debian.org/debian-lts-announce/2019/04/msg00000.html [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 31, 2019

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2019/dsa-4420 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 29, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00043.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Mar. 29, 2019

    Action Type Old Value New Value
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:0680 No Types Assigned https://access.redhat.com/errata/RHSA-2019:0680 Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/03/msg00024.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/03/msg00024.html Mailing List, Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:0681 No Types Assigned https://access.redhat.com/errata/RHSA-2019:0681 Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/3927-1/ No Types Assigned https://usn.ubuntu.com/3927-1/ Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2019/dsa-4411 No Types Assigned https://www.debian.org/security/2019/dsa-4411 Third Party Advisory
    Changed Reference Type https://seclists.org/bugtraq/2019/Mar/28 No Types Assigned https://seclists.org/bugtraq/2019/Mar/28 Mailing List, Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:0622 No Types Assigned https://access.redhat.com/errata/RHSA-2019:0622 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:0623 No Types Assigned https://access.redhat.com/errata/RHSA-2019:0623 Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00035.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00035.html Mailing List, Third Party Advisory
    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: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_aus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 29, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3927-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 28, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:0681 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2019:0680 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 27, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00035.html [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 21, 2019

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2019/dsa-4411 [No Types Assigned]
    Added Reference https://seclists.org/bugtraq/2019/Mar/28 [No Types Assigned]
    Added Reference https://lists.debian.org/debian-lts-announce/2019/03/msg00024.html [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2019:0623 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2019:0622 [No Types Assigned]
  • Initial Analysis by [email protected]

    Feb. 08, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type http://www.securityfocus.com/bid/106773 No Types Assigned http://www.securityfocus.com/bid/106773 Third Party Advisory, VDB Entry
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2019-01/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2019-01/ Vendor Advisory
    Changed Reference Type https://usn.ubuntu.com/3874-1/ No Types Assigned https://usn.ubuntu.com/3874-1/ Third Party Advisory
    Added CWE CWE-254
    Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 65.0
    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:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 06, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3874-1/ [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/106773 [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-2018-18506 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-2018-18506 weaknesses.

Exploit Prediction

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

0.24 }} -0.00%

score

0.62422

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability