4.3
CVSSv2

CVE-2018-18506

Published: 05/02/2019 Updated: 17/03/2023
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 5.9 | Impact Score: 3.6 | Exploitability Score: 2.2
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Vulnerability Summary

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.

Vulnerability Trend

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mozilla firefox

canonical ubuntu linux 16.04

canonical ubuntu linux 14.04

canonical ubuntu linux 18.04

canonical ubuntu linux 18.10

debian debian linux 8.0

debian debian linux 9.0

redhat enterprise linux desktop 7.0

redhat enterprise linux workstation 7.0

redhat enterprise linux server 7.0

redhat enterprise linux desktop 6.0

redhat enterprise linux server 6.0

redhat enterprise linux workstation 6.0

redhat enterprise linux server tus 7.6

redhat enterprise linux server eus 7.6

redhat enterprise linux server aus 7.6

redhat enterprise linux 8.0

redhat enterprise linux eus 8.1

redhat enterprise linux eus 8.2

redhat enterprise linux server tus 8.2

redhat enterprise linux server aus 8.2

redhat enterprise linux server tus 8.4

redhat enterprise linux eus 8.4

redhat enterprise linux server aus 8.4

redhat enterprise linux server aus 8.6

redhat enterprise linux server tus 8.6

redhat enterprise linux eus 8.6

opensuse leap 42.3

opensuse leap 15.0

Vendor Advisories

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Synopsis Critical: firefox security update Type/Severity Security Advisory: Critical Topic An update for firefox is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Critical A Common Vulnerability Scoring System (CVSS) base score, wh ...
Synopsis Critical: firefox security update Type/Severity Security Advisory: Critical Topic An update for firefox is now available for Red Hat Enterprise Linux 8Red Hat Product Security has rated this update as having a security impact of Critical A Common Vulnerability Scoring System (CVSS) base score, wh ...
Synopsis Important: thunderbird security update Type/Severity Security Advisory: Important Topic An update for thunderbird is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System (CVSS) bas ...
Synopsis Important: thunderbird security update Type/Severity Security Advisory: Important Topic An update for thunderbird is now available for Red Hat Enterprise Linux 8Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System (CVSS) bas ...
Synopsis Critical: firefox security update Type/Severity Security Advisory: Critical Topic An update for firefox is now available for Red Hat Enterprise Linux 6Red Hat Product Security has rated this update as having a security impact of Critical A Common Vulnerability Scoring System (CVSS) base score, wh ...
Synopsis Important: thunderbird security update Type/Severity Security Advisory: Important Topic An update for thunderbird is now available for Red Hat Enterprise Linux 6Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System (CVSS) bas ...
Multiple security issues have been found in the Thunderbird mail client, which could lead to the execution of arbitrary code or denial of service For the stable distribution (stretch), these problems have been fixed in version 1:6061-1~deb9u1 We recommend that you upgrade your thunderbird packages For the detailed security status of thunderbir ...
Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code For the stable distribution (stretch), these problems have been fixed in version 6060esr-1~deb9u1 We recommend that you upgrade your firefox-esr packages For the detailed security status of firefox-esr ...
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 f ...
Impact: Moderate Public Date: 2019-03-20 CWE: CWE-200 Bugzilla: 1690673: CVE-2018-18506 Mozilla: Proxy ...
When proxy auto-detection is enabled in Firefox &lt; 650, 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 ...
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Mozilla Foundation Security Advisory 2019-11 Security vulnerabilities fixed in Thunderbird 606 Announced March 19, 2019 Impact critical Products Thunderbird Fixed in Thunderbird 606 ...
Mozilla Foundation Security Advisory 2019-08 Security vulnerabilities fixed in Firefox ESR 606 Announced March 19, 2019 Impact critical Products Firefox ESR Fixed in Firefox ESR 606 ...