Vulnerability CVE-2018-18496

Vulnerability Name:

CVE-2018-18496 (CCN-154151)

Assigned:

2018-12-11

Published:

2018-12-11

Updated:

2020-08-24

Summary:

When the RSS Feed preview about:feeds page is framed within another page, it can be used in concert with scripted content for a clickjacking attack that confuses users into downloading and executing an executable file from a temporary directory.
Note: This issue only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Firefox < 64.

CVSS v3 Severity:

8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): High Availibility (A): None

CVSS v2 Severity:

6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:C/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): Complete Availibility (A): None

Vulnerability Type:

CWE-1021

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2018-18496

Source: BID
Type: Third Party Advisory, VDB Entry
106167

Source: CONFIRM
Type: Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1422231

Source: XF
Type: UNKNOWN
firefox-cve201818496-clickjacking(154151)

Source: CCN
Type: Mozilla Foundation Security Advisory 2018-29
Security vulnerabilities fixed in Firefox 64

Source: CONFIRM
Type: Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-29/

Vulnerable Configuration:

Configuration 1:

cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version < 64.0)

AND

cpe:/o:microsoft:windows:-:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:mozilla:firefox:63.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:111899	P	MozillaFirefox-92.0-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:105476	P	MozillaFirefox-92.0-1.2 on GA media (Moderate)	2021-10-01
oval:com.ubuntu.bionic:def:201818496000	V	CVE-2018-18496 on Ubuntu 18.04 LTS (bionic) - medium.	2019-02-28
oval:com.ubuntu.cosmic:def:2018184960000000	V	CVE-2018-18496 on Ubuntu 18.10 (cosmic) - medium.	2019-02-28
oval:com.ubuntu.cosmic:def:201818496000	V	CVE-2018-18496 on Ubuntu 18.10 (cosmic) - medium.	2019-02-28
oval:com.ubuntu.bionic:def:2018184960000000	V	CVE-2018-18496 on Ubuntu 18.04 LTS (bionic) - medium.	2019-02-28
oval:com.ubuntu.trusty:def:201818496000	V	CVE-2018-18496 on Ubuntu 14.04 LTS (trusty) - medium.	2019-02-28
oval:com.ubuntu.xenial:def:2018184960000000	V	CVE-2018-18496 on Ubuntu 16.04 LTS (xenial) - medium.	2019-02-28
oval:com.ubuntu.xenial:def:201818496000	V	CVE-2018-18496 on Ubuntu 16.04 LTS (xenial) - medium.	2019-02-28

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