Combine AI-driven security operations, multi-signal attack surface coverage and 24/7 Elite Threat Hunters to help you take your security program to the next level.
Get unlimited Incident Response with threat suppression guarantee - anytime, anywhere.
CTEM and advisory programs that identify security gaps and build proactive strategies to address them.
Multi-agent Generative AI system embedded across eSentire’s Security Operations platform to scale human expertise.
Open XDR with Agentic AI & machine learning that eliminates noise, enables real-time detection and response, and automatically blocks threats.
See what our SOC sees, review investigations, and see how we are protecting your business.
Seamless integrations and threat investigation across your existing tech stack.
24/7 SOC-as-a-Service with unlimited threat hunting and incident handling.
Proactive threat intelligence, original threat research and a world-class team of seasoned industry veterans.
Extend your team capabilities and prevent business disruption with expertise from eSentire.
We balance automated blocks with rapid human-led investigations to manage threats.
Flexible MDR pricing and packages that fit your unique security requirements.
Entry level foundational MDR coverage
Comprehensive Next Level MDR from eSentire
Next Level MDR with Cyber Risk Advisors to continuously advance your security program
Stop ransomware before it spreads.
Stop identity-based cyberattacks.
Detect and respond to zero-day exploits.
Meet regulatory compliance mandates.
Defend third-party and supply chain risk.
End misconfigurations and policy violations.
Adopt a risk-based security approach.
Prevent disruption by outsourcing MDR.
Protect your most sensitive data.
Meet insurability requirements with MDR.
Operationalize cyber threat intelligence.
Build a proven security program.
THE THREATOn August 12th, Fortinet disclosed a critical vulnerability impacting multiple versions of Fortinet FortiSIEM. The flaw, CVE-2025-25256 (CVSS: 9.8), is a remote unauthenticated…
Aug 06, 2025THE THREAT eSentire has observed threat actors actively exploiting Microsoft 365's Direct Send feature to conduct sophisticated phishing campaigns targeting organizations…
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.
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.
Multi-Signal MDR with 300+ technology integrations to support your existing investments.
24/7 SOC-as-a-Service with unlimited threat hunting and incident handling.
We offer three flexible MDR pricing packages that can be customized to your unique needs.
The latest security advisories, blogs, reports, industry publications and webinars published by TRU.
Compare eSentire to other Managed Detection and Response vendors to see how we stack up against the competition.
See why 2000+ organizations globally have chosen eSentire for their MDR Solution.
On May 20th, Tenable Research disclosed a critical memory corruption vulnerability in Fluent Bit dubbed “Linguistic Lumberjack.” Tracked as CVE-2024-4323 (CVSS: 9.8), this vulnerability impacts Fluent Bit versions 2.0.7 thru 3.0.3. This issue lies in the embedded HTTP server’s parsing of trace requests and may result in Denial-of-Service (DoS), information disclosure, or Remote Code Execution (RCE). Tenable included Proof-of-Concept (PoC) exploit code for the Denial-of-Service attack in their release.
Real world exploitation of CVE-2024-4323 has not been identified at this time. Due to the release of PoC exploit code and the prevalence of Fluent Bit, the eSentire Threat Intelligence team assesses that exploitation in the near future is probable. As such, organizations using Fluent Bit are strongly recommended to perform remediation actions as soon as possible.
Fluent Bit is a lightweight, open-source data collector and processor known for its ability to efficiently handle large amounts of log data from diverse sources. Engineered for scalability and ease of use, it has become a common solution for collecting and processing logs in cloud-based environments. With more than 10 million daily deployments, Fluent Bit is deeply integrated into the infrastructure of nearly every major cloud provider including Amazon, Google, and Microsoft.
The Fluent Bit monitoring API allows users to query and monitor internal service information, such as uptime and plugin metrics. However, insufficient validation of data types in the "inputs" array of requests to the /api/v1/traces endpoint led to memory corruption issues. Passing non-string values, such as integers, could trigger crashes, heap overwrites, memory disclosure, and even remote code execution possibilities under certain environmental conditions.
At the time of writing, Fluent Bit has not made a formal announcement and the project maintainers have not yet generated an official release despite the vulnerability information being publicly available in the repository.
References:
[1] https://www.tenable.com/blog/linguistic-lumberjack-attacking-cloud-services-via-logging-endpoints-fluent-bit-cve-2024-4323
[2] https://www.tenable.com/security/research/tra-2024-17
[3] https://www.tenable.com/cve/CVE-2024-4323
[4] https://github.com/fluent/fluent-bit/commit/9311b43a258352797af40749ab31a63c32acfd04