MFSA2017-21 Firefox: Security vulnerabilities fixed in Firefox 56 (CVE-2017-7820)
5
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
06/11/2018
07/25/2018
07/12/2018
07/12/2018
Description
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.
Solution(s)
- mozilla-firefox-upgrade-56_0
Advanced vulnerability management analytics and reporting.
Key Features
- Lightweight Endpoint Agent
- Live Dashboards
- Real Risk Prioritization
- IT-Integrated Remediation Projects
- Cloud, Virtual, and Container Assessment
- Integrated Threat Feeds
- Easy-to-Use RESTful API
- Automation-Assisted Patching
- Automated Containment
With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.
– Scott Cheney, Manager of Information Security, Sierra View Medical Center