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Vulnerability Details : CVE-2018-18506

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.
Publish Date : 2019-02-05 Last Update Date : 2020-08-24
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID CWE id is not defined for this vulnerability

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2019:0622: firefox security update (Critical) oval:com.redhat.rhsa:def:20190622 unix
RHSA-2019:0623: firefox security update (Critical) oval:com.redhat.rhsa:def:20190623 unix
RHSA-2019:0680: thunderbird security update (Important) oval:com.redhat.rhsa:def:20190680 unix
RHSA-2019:0681: thunderbird security update (Important) oval:com.redhat.rhsa:def:20190681 unix
RHSA-2019:0966: firefox security update (Critical) oval:com.redhat.rhsa:def:20190966 unix
RHSA-2019:1144: thunderbird security update (Important) oval:com.redhat.rhsa:def:20191144 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-18506

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 18.10 * * * Version Details Vulnerabilities
5 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
6 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
7 Application Mozilla Firefox * * * * Version Details Vulnerabilities
8 OS Opensuse Leap 15.0 * * * Version Details Vulnerabilities
9 OS Opensuse Leap 42.3 * * * Version Details Vulnerabilities
10 OS Redhat Enterprise Linux Desktop 6.0 * * * Version Details Vulnerabilities
11 OS Redhat Enterprise Linux Desktop 7.0 * * * Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Server 6.0 * * * Version Details Vulnerabilities
13 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
14 OS Redhat Enterprise Linux Server Aus 7.6 * * * Version Details Vulnerabilities
15 OS Redhat Enterprise Linux Server Eus 7.6 * * * Version Details Vulnerabilities
16 OS Redhat Enterprise Linux Server Tus 7.6 * * * Version Details Vulnerabilities
17 OS Redhat Enterprise Linux Workstation 6.0 * * * Version Details Vulnerabilities
18 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Debian Debian Linux 2
Mozilla Firefox 1
Opensuse Leap 2
Redhat Enterprise Linux Desktop 2
Redhat Enterprise Linux Server 2
Redhat Enterprise Linux Server Aus 1
Redhat Enterprise Linux Server Eus 1
Redhat Enterprise Linux Server Tus 1
Redhat Enterprise Linux Workstation 2

- References For CVE-2018-18506
REDHAT RHSA-2019:1144
REDHAT RHSA-2019:0966
SUSE openSUSE-SU-2019:1126
SUSE openSUSE-SU-2019:1162
GENTOO GLSA-201904-07
MLIST [debian-lts-announce] 20190401 [SECURITY] [DLA 1743-1] thunderbird security update
SUSE openSUSE-SU-2019:1077
BUGTRAQ 20190401 [SECURITY] [DSA 4420-1] thunderbird security update
REDHAT RHSA-2019:0680
REDHAT RHSA-2019:0681
SUSE openSUSE-SU-2019:1056
MLIST [debian-lts-announce] 20190321 [SECURITY] [DLA 1722-1] firefox-esr security update
REDHAT RHSA-2019:0623
REDHAT RHSA-2019:0622
BUGTRAQ 20190320 [SECURITY] [DSA 4411-1] firefox-esr security update
BID 106773 Mozilla Firefox MFSA2019-01 Multiple Security Vulnerabilities Release Date:2019-04-19

- Metasploit Modules Related To CVE-2018-18506

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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