Combine cutting-edge XDR technology, multi-signal threat intelligence and 24/7 Elite Threat Hunters to help you build a world-class security operation.
Our team delivers the fastest response time in the industry. Threat suppression within just 4 hours of being engaged.
Cyber risk and advisory programs that identify security gaps and build security strategies to address them.
XDR with machine learning that eliminates noise, enables real-time detection and response, and automatically blocks threats.
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.
Stop ransomware before it spreads.
Meet regulatory compliance mandates.
Detect and respond to zero-day exploits.
End misconfigurations and policy violations.
Defend third-party and supply chain risk.
Prevent disruption by outsourcing MDR.
Adopt a risk-based security approach.
Meet insurability requirements with MDR.
Protect your most sensitive data.
Defend brute force attacks, active intrusions and unauthorized scans.
Guard endpoints by isolating and remediating threats to prevent lateral spread.
Investigation and threat detection across multi-cloud or hybrid environments.
Remediate misconfigurations, vulnerabilities and policy violations.
Detect and respond to insider and identity-based attacks.
THE THREATOn April 24th, Cisco, in coordination with the Canadian Center for Cyber Security (CCCS), the Australian Cyber Security Centre (ACSC), and the National Cyber Security Centre…
Apr 16, 2024THE THREAT On April 12th, 2024, Palo Alto Networks disclosed a critical, actively exploited vulnerability in Palo Alto Networks’ firewalls. Tracked as CVE-2024-3400 (CVSS: 10), this is a…
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.
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.
Google has released new information related to an actively exploited zero-day vulnerability, including widening the scope and criticality of the exploitation impact. The issue, tracked as CVE-2023-5129 (CVSS: 10), is a heap buffer overflow vulnerability in the open source libwebp code library. This is a widely incorporated platform used to render webp images. Threat actors may exploit the vulnerability to write data out-of-bounds, leading to arbitrary code execution.
The vulnerability was confirmed to be exploited by threat actors in the wild prior to the release of security patches. Additionally, technical details about the vulnerability and Proof-of-Concept (PoC) code are publicly available. Due to these circumstances, it is critical that organizations ensure impacted devices are up to date on security patches.
This vulnerability was initially tracked under the CVE identifier CVE-2023-4863. Google provided effective security patches from the Chrome browser at the time. The new advisory was released to reflect that a wider number of products were impacted than initially believed; all vendors using the libwebp library in their products, are required to release updates to mitigate the vulnerability. The update also included an increase to the criticality score; raising the CVSS score from 8.8 to the maximum severity rating of 10.
The libwebp code library was created by Google in 2010, as a new way to render images in webp. The library has since been incorporated into thousands of widely used applications ranging from chat apps to web browsers. Due to the scope of impact, it is likely that product updates related to CVE-2023-5129 will be ongoing for some time.
Google has confirmed exploitation in the wild but has not publicly disclosed attack details at this time. There is public speculation that exploitation is associated with the spyware vendor NSO Group, in attacks involving the BLASTPASS exploit chain. This information has not been independently confirmed at this point, but appears likely, as the initial vulnerability was reported by Citizen Lab, the same organization that discovered BLASTPASS, and has a history of disclosing information related to NSO Group exploits. If accurate, this would imply that attacks are highly targeted in nature and likely associated with a state actor. The BLASTPASS exploit chain is confirmed to have been used against a Washington DC-based civil society organization with international offices.
While exploitation is likely limited to targeted attacks at this time, Proof-of-Concept (PoC) code and technical details are already publicly available. The combination of these technical details, as well as the interest this vulnerability has attracted, are likely to result in additional real-world attacks by other threat actor groups in the near future.
References:
[1] https://nvd.nist.gov/vuln/detail/CVE-2023-5129
[2] https://nvd.nist.gov/vuln/detail/CVE-2023-4863
[3] https://blog.isosceles.com/the-webp-0day/
[4] https://citizenlab.ca/2023/09/blastpass-nso-group-iphone-zero-click-zero-day-exploit-captured-in-the-wild/