CVE-2017-7820 - Vulnerability Details - OpenCVE

The "instanceof" operator can bypass the Xray wrapper mechanism. When called on web content from the browser itself or an extension the web content can provide its own result for that operator, possibly tricking the browser or extension into mishandling the element. This vulnerability affects Firefox < 56.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00807.

Key SSVC decision points have not yet been added.

Vendors	Products
Mozilla	Firefox

Configuration 1 [-]

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2017-16795	The "instanceof" operator can bypass the Xray wrapper mechanism. When called on web content from the browser itself or an extension the web content can provide its own result for that operator, possibly tricking the browser or extension into mishandling the element. This vulnerability affects Firefox < 56.
Ubuntu USN	USN-3435-1	Firefox vulnerabilities

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
http://www.securityfocus.com/bid/101057
http://www.securitytracker.com/id/1039465
https://bugzilla.mozilla.org/show_bug.cgi?id=1378207
https://www.mozilla.org/security/advisories/mfsa2017-21/

History

No history.

MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2018-06-11T21:00:00

Updated: 2024-08-05T16:12:28.355Z

Reserved: 2017-04-12T00:00:00

Link: CVE-2017-7820

Vulnrichment

No data.

NVD

Status : Modified

Published: 2018-06-11T21:29:10.873

Modified: 2024-11-21T03:32:44.003

Link: CVE-2017-7820

Redhat

No data.

OpenCVE Enrichment

No data.

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