Vulnerability CVE-2017-7831

Vulnerability Name:

CVE-2017-7831 (CCN-134833)

Assigned:

2017-11-14

Published:

2017-11-14

Updated:

2018-06-25

Summary:

A vulnerability where the security wrapper does not deny access to some exposed properties using the deprecated "_exposedProps_" mechanism on proxy objects. These properties should be explicitly unavailable to proxy objects. This vulnerability affects Firefox < 57.

CVSS v3 Severity:

5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None Availibility (A): None

6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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:H/I:N/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): High Integrity (I): None Availibility (A): None

CVSS v2 Severity:

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

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

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

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

Vulnerability Type:

CWE-200

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2017-7831

Source: BID
Type: Third Party Advisory, VDB Entry
101832

Source: CCN
Type: BID-101832
Mozilla Firefox Prior to 57 Multiple Security Vulnerabilities

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1039803

Source: CONFIRM
Type: Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1392026

Source: XF
Type: UNKNOWN
firefox-cve20177831-info-disc(134833)

Source: CCN
Type: Mozilla Foundation Security Advisory 2017-24
Security vulnerabilities fixed in Firefox 57

Source: CONFIRM
Type: Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-24/

Vulnerable Configuration:

Configuration 1:

cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version <= 56.0.2)

Configuration CCN 1:

cpe:/a:mozilla:firefox:56.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:20177831	V	CVE-2017-7831	2022-06-30
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:201778310000000	V	CVE-2017-7831 on Ubuntu 18.04 LTS (bionic) - medium.	2018-06-11
oval:com.ubuntu.artful:def:20177831000	V	CVE-2017-7831 on Ubuntu 17.10 (artful) - medium.	2018-06-11
oval:com.ubuntu.xenial:def:20177831000	V	CVE-2017-7831 on Ubuntu 16.04 LTS (xenial) - medium.	2018-06-11
oval:com.ubuntu.xenial:def:201778310000000	V	CVE-2017-7831 on Ubuntu 16.04 LTS (xenial) - medium.	2018-06-11
oval:com.ubuntu.bionic:def:20177831000	V	CVE-2017-7831 on Ubuntu 18.04 LTS (bionic) - medium.	2018-06-11
oval:com.ubuntu.disco:def:201778310000000	V	CVE-2017-7831 on Ubuntu 19.04 (disco) - medium.	2018-06-11
oval:com.ubuntu.cosmic:def:20177831000	V	CVE-2017-7831 on Ubuntu 18.10 (cosmic) - medium.	2018-06-11
oval:com.ubuntu.cosmic:def:201778310000000	V	CVE-2017-7831 on Ubuntu 18.10 (cosmic) - medium.	2018-06-11
oval:com.ubuntu.trusty:def:20177831000	V	CVE-2017-7831 on Ubuntu 14.04 LTS (trusty) - medium.	2018-06-11

BACK