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May 11, 2022
CVE-2022-26923 - Active Directory Domain Services Elevation of Privilege Vulnerability
THE THREAT Microsoft has disclosed a new vulnerability impacting Active Directory Certificate Services (ADCS) tracked as CVE-2022-26923 (Active Directory Domain Services Elevation of Privilege Vulnerability). If exploited successfully, an authenticated attacker can escalate privileges in environments where ADCS is running on the domain. eSentire is aware of technical details and tooling [2] for…
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Cybersecurity Leader eSentire Continues Its Commitment to Rigorous Security Standards Earning PCI DSS Certification
Waterloo, ON, May 17, 2022 — eSentire, the Authority in Managed Detection and Response (MDR), maintains one of the most secure and robust IT environments of any MDR provider in the industry. To that end, eSentire today announced that it has received the Payment Card Industry Data Security Standard (PCI DSS) certification, considered one of the most stringent and comprehensive payment card…
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Security advisories — Jan 11, 2020

UPDATE: BlueKeep Active Exploitation

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The Threat

Since October 23, 2019, wide-scale exploitation of BlueKeep (CVE-2019-0708) has been observed in the wild, delivering crypto-currency miners to vulnerable systems; the activity was first discovered by security researcher Kevin Beaumont [1]. Microsoft released security patches for BlueKeep in May 2019. It is highly recommended to install the patches on all vulnerable systems if this action has not been taken already.

What we’re doing about it

What you should do about it

Additional information

CVE-2019-0708 is a critical vulnerability affecting Microsoft Remote Desktop Protocol (RDP). If exploited, a remote and unauthenticated attacker can execute arbitrary code on vulnerable systems or cause a denial of service. This vulnerability is especially concerning as user interaction is not required and it is wormable; meaning that a determined threat actor could create a self-propagating exploit. However, at this time, no worms employing CVE-2019-0708 have been identified in the wild.

For additional technical details, see the blogpost BlueKeep (CVE 2019-0708) exploitation spotted in the wild, by Marcus Hutchins [4].

Affected Windows Versions still supported by Microsoft:

Affected Windows Versions no-longer supported by Microsoft:

References

[1] https://doublepulsar.com/bluekeep-exploitation-activity-seen-in-the-wild-bd6ee6e599a6

[2] https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0708

[3] https://www.nsa.gov/News-Features/News-Stories/Article-View/Article/1865726/nsa-cybersecurity-advisory-patch-remote-desktop-services-on-legacy-versions-of/

[4] https://www.kryptoslogic.com/blog/2019/11/bluekeep-cve-2019-0708-exploitation-spotted-in-the-wild/?source=post_page-----bd6ee6e599a6----------------------

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