What We Do
How we do it
Resources
SECURITY ADVISORIES
Nov 22, 2021
Microsoft Exchange Vulnerability - CVE-2021-42321
THE THREAT eSentire has identified publicly available Proof-of-Concept (PoC) exploit code, for the critical Microsoft Exchange vulnerability CVE-2021-42321. CVE-2021-42321 was announced as part of Microsoft’s November Patch Tuesday release. Exploitation would allow a remote threat actor, with previous authentication, to execute code on vulnerable servers. Prior to the patch release, Microsoft…
Read More
View all Advisories →
Company
ABOUT ESENTIRE
About Us
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1000+ organizations in 70+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
Read about how we got here
Leadership Work at eSentire
LATEST PRESS RELEASE
Oct 28, 2021
Telarus and eSentire Expand Partnership to Safeguard Enterprises Globally Against Business Disrupting Ransomware and Zero-Day Attacks
London, UK and Sydney, Australia– Oct. 28, 2021 - eSentire, recognized globally as the Authority in Managed Detection and Response (MDR), today announces the expansion of its partnership with Telarus, the largest privately-held distributor of business cloud infrastructure and contact centre services. Building on their mutual success across North America, Telarus will bring eSentire’s Managed…
Read More
Partners
PARTNER PROGRAM
Partners
Our award-winning partner program offers financial rewards, sales and marketing tools and personalized training. Accelerate your business and grow your revenue by offering our world-class Managed Detection and Response (MDR) services.
Learn about our Partner Program
PARTNER RESOURCES
Apply today to partner with the Authority in Managed Detection and Response.
Login to the Partner Portal for resources and content for current partners.
Search
Resources
Security advisories — Jun 20, 2019

Second Firefox Zero-Day Announced - CVE-2019-11708

Speak With A Security Expert Now

The Threat

On June 20th, 2019, Mozilla released security patches to address a zero-day vulnerability being exploited in the wild [1]. The vulnerability (CVE-2019-11708) allows for sandbox escape using Prompt:Open. Sandbox escape, in the context of web-browsers, could allow for malicious code to escape a secure environment and reach the user’s machine. Although the vulnerability is not critical on its own, if linked with the “type confusion” vulnerability (CVE-2019-11707) released yesterday, a threat actor can achieve remote code execution.

Due to its use in attacks in the wild, security patches to address CVE-2019-11708 should be applied as soon as possible.

What we’re doing about it

What you should do about it

Additional information

CVE-2019-11708 is due to an insufficient vetting of parameters passed with the Prompt:Open IPC message. The vulnerability was originally discovered in mid-April by Google’s Project Zero. Patch release was prompted after Coinbase, a cryptocurrency exchange, reported attacks utilizing both CVE-2019-11707 and CVE-2019-11708 [2].

For more information on (CVE-2019-11707) see the eSentire advisory Firefox Zero-Day Vulnerability [3].

References:

[1] https://www.mozilla.org/en-US/security/advisories/mfsa2019-19/

[2] https://www.zdnet.com/article/mozilla-fixes-second-firefox-zero-day-exploited-in-the-wild/

[3] https://www.esentire.com/security-advisories/firefox-zero-day-vulnerability/

View Most Recent Blogs