Cyber risk and advisory programs that identify security gaps and build strategies to address them.
MDR that provides improved detection, 24/7 threat hunting, end-to-end coverage and most of all, complete Response.
Our team delivers the fastest response time in the industry. Threat suppression within just 4 hours of being engaged.
Visibility and response across your entire Microsoft security ecosystem.
XDR with Machine Learning that eliminates noise, enables real-time detection and response, and automatically blocks threats.
Be protected by the best from Day 1.
24/7 Threat Investigation and Response.
Expert threat hunting, original research, and proactive threat intelligence.
TRU is foundational to our MDR service. No add-ons or additional costs required.
Flexible MDR packages that enhance your cyber resilience and security operations.
Stop ransomware attacks before they disrupt your business.
Detect and respond to zero-day exploits.
Protect against third-party and supply chain risk.
Adopt a risk-based approach to cybersecurity.
Protect your most sensitive data.
Meet cybersecurity regulatory compliance mandates.
Eliminate misconfigurations and policy violations.
Prevent business disruption by outsourcing MDR.
Defend brute force attacks, active intrusions and unauthorized scans.
Safeguard endpoints 24/7 by isolating and mediating threats to prevent lateral spread.
Enhance investigation and threat detection across multi-cloud or hybrid environments.
Remediate critical misconfigurations, security vulnerabilities and policy violations across cloud and containerized environments.
Detect malicious insider and identity-based behavior leveraging machine learning models.
THE THREAT On August 21st, 2023, Ivanti disclosed a new vulnerability impacting Ivanti Sentry (formerly MobileIron Sentry). Ivanti has confirmed limited exploitation occurred prior to the disclosure… READ NOW
Our Threat Response Unit (TRU) publishes security advisories, blogs, reports, industry publications and webinars based on its original research and the insights driven through proactive threat hunts.
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 2000+ organizations in 80+ 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.
Waterloo, ON–September 6, 2023 – eSentire, Inc., the Authority in Managed Detection and Response (MDR), and Kterio, the leading provider of smart building operating systems, today announced that they… READ NOW
We provide sophisticated cybersecurity solutions for Managed Security Service Providers (MSSPs), Managed Service Providers (MSPs), and Value-Added Resellers (VARs). Find out why you should partner with eSentire, the Authority in Managed Detection and Response, today.
We believe a multi-signal approach is paramount to protecting your complete attack surface. See why eSentire MDR means multi-signal telemetry and complete response.
See how our 24/7 SOC Cyber Analysts and Elite Threat Hunters stop even the most advanced cyberattacks before they disrupt your business.
Choose the right mix of Managed Detection and Response, Exposure Management, and Incident Response services to strengthen your cyber resilience.
Try our interactive tools including the MITRE ATT&CK Tool, the SOC Pricing Calculator, the Cybersecurity Maturity Assessment, and our MDR ROI Calculator.
Read the latest security advisories, blogs, reports, industry publications and webinars published by eSentire's Threat Response Unit (TRU).
See why 2000+ organizations count on eSentire to build resilience and prevent business disruption.
On May 23rd, the email security company Barracuda disclosed a new vulnerability impacting Barracuda Email Security Gateway (ESG) appliances. Exploitation of the vulnerability, by threat actors in the wild, has been confirmed, and additional technical details relating to real-world attacks were shared by Barracuda in an update on May 30th.
The vulnerability tracked as CVE-2023-2868 (CVSS: 9.4) is a remote command injection vulnerability that impacts Barracuda ESG versions 5.1.3.001-9.2.0.006. A remote and unauthenticated threat actor may exploit the vulnerability to execute code on vulnerable assets, leading to deployment of malware and data theft. Exploitation of CVE-2023-2868 has been ongoing since at least October 2022.
Organizations are strongly recommended to validate patch deployment and review all potentially impacted devices for signs of compromise.
If exploitation has been confirmed /the organization has been contacted by Barracuda related to exploitation of CVE-2023-2868:
Exploitation of CVE-2023-2868 is possible due to improper input validation of user-supplied .tar files. A remote attacker may format file names in a specific way to enable the remote execution of system commands via Perl's qx operator. Commands are executed under the same privileges as the ESG Gateway product, and no user interaction is required.
The investigation into CVE-2023-2868 and its exploitation remains ongoing at the time of writing. Barracuda has not confirmed how many organizations were impacted by attacks, but they do state that, “CVE-2023-2868 was utilized to obtain unauthorized access to a subset of ESG appliances” and “evidence of data exfiltration was identified on a subset of impacted appliances”. Barracuda has notified all organizations that were identified as being impacted by attacks exploiting CVE-2023-2868.
In real-world attacks, unidentified threat actors exploited the vulnerability for initial access into victim organizations. Once access was achieved, both novel and known customized malware were deployed to victim organizations. Observed malware includes:
While no attribution has been given at this time, based on the exploitation of a zero-day vulnerability, the use of previously unseen malware, and the avoidance of any detection for seven months, it is probable that this campaign was carried out by a sophisticated and capable threat actor group that is well resourced.