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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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eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1200+ organizations in 75+ 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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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 — Feb 09, 2021

Adobe Reader Critical Zero-Day Vulnerability

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THE THREAT

On February 9, 2021, Adobe announced security patches for a variety of vulnerabilities affecting their products, including a previously unidentified zero-day vulnerability. The zero-day vulnerability (CVE-2021-21017) affects Adobe Reader on Windows and macOS devices and is being actively exploited in the wild for users on Windows. CVE-2021-21017 is a heap-based buffer overflow vulnerability, that if exploited allows for remote code execution. The vulnerability is rated as critical by Adobe.

As this vulnerability is already being exploited by actors in the wild, it is highly recommended that organizations test and deploy the official Adobe patch as soon as possible.

What we’re doing about it

What you should do about it

Additional information

Details relating to attacks exploiting CVE-2021-21017 in the wild are currently not publicly available. eSentire security teams are actively tracking this threat for additional details.

Outside of CVE-2021-21017, Adobe released 16 other vulnerabilities ranked as critical, along with a variety of less severe vulnerabilities. At this time, only CVE-2021-21017 has been identified as being exploited in the wild. It is recommended that organizations apply all relevant Adobe patches as soon as possible to avoid being impacted by this vulnerability.

References:

[1] https://helpx.adobe.com/security/products/acrobat/apsb21-09.html

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