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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…
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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.
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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…
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Security advisories — Dec 11, 2020

FireEye Breach Update

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As an update from our Wednesday, December 9th, 2020 advisory, eSentire is continuing to closely monitor the situation. eSentire has not observed any indicators of compromise associated with the disclosure of FireEye’s Red Team assessment tools being used maliciously. We have detected numerous routine penetration testing instances using these tools and have alerted appropriately. MVS has been updated to include coverage for all CVE targets identified by FireEye (see below) and we recommend that you continue to review your reports and remediate associated vulnerabilities. We will continue to keep you updated if there are any additional updates. We encourage you to watch the recorded webinar that discusses this topic.

THE THREAT:

On December 14th, FireEye disclosed a global supply chain intrusion campaign based on compromised SolarWinds Orion releases. The compromised releases subsequently masqueraded its traffic as the Orion Improvement Protocol, thereby blending in with legitimate SolarWinds activity to obfuscate the threat actors' activities.

FireEye has developed and publicly released approximately 300 countermeasures, aimed at arming the security community at large to defend against the attacks they authored. eSentire has implemented new detection content based on information shared by FireEye. We will continue to monitor the situation and deploy new detection content as necessary.

What we're doing about it:

What you should do about it:

Additional Information:

Prioritized CVEs by FireEye:

CVE-2019-11510 - Pulse Secure SSL VPNs

CVE-2020-1472 - Microsoft Active Directory

CVE-2018-13379 - Fortinet Fortigate SSL VPN

CVE-2018-15961 - Adobe ColdFusion

CVE-2019-0604 - Microsoft SharePoint

CVE-2019-0708 - Windows Remote Desktop Services

CVE-2019-11580 - Atlassian Crowd

CVE-2019-19781 - Citrix Application Delivery Controller and Citrix Gateway

CVE-2020-10189 - ZoHo ManageEngine Desktop Central

CVE-2014-1812 - Windows

CVE-2019-3398 - Confluence

CVE-2020-0688 - Microsoft Exchange

CVE-2016-0167 - Microsoft Windows

CVE-2017-11774 - Microsoft Outlook

CVE-2018-8581 - Microsoft Exchange Server

CVE-2019-8394 - ZoHo ManageEngine ServiceDesk Plus

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