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SECURITY ADVISORIES
Sep 23, 2021
SolarMarker Malware Activity
THE THREAT eSentire has observed a recent and significant increase in SolarMarker infections delivered through drive-by download attacks. These attacks rely on social engineering techniques to persuade users to execute malware disguised as document templates. SolarMarker is a modular information-stealing malware; infections may result in the theft of sensitive data including user credentials.…
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Aug 25, 2021
eSentire named a Leader in IDC MarketScape for U.S. Managed Detection and Response Services
August 26, 2021 – Waterloo, ON -  eSentire, recognized globally as the Authority in Managed Detection and Response (MDR), announced today that it has been named a Leader in the IDC MarketScape: U.S. Managed Detection and Response Services 2021 Vendor Assessment (doc #US48129921, August 2021). IDC defines the core services an MDR must provide as follows: reduced time for onboarding, 24/7…
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Security advisories — Apr 29, 2019

Oracle WebLogic RCE Vulnerability

A remote code execution vulnerability in Oracle WebLogic Servers was publicly disclosed on April 17th, 2019 [1]. A remote attacker could exploit this vulnerability by sending a malicious request to the server, resulting in code execution without authentication. Attacks exploiting this vulnerability have been identified in the wild [2]. Oracle released security patches to address this vulnerability on April 26th [3]. It is highly recommended that affected WebLogic versions be patched as soon as possible to avoid compromise.

What are we doing about it

What you should do about it

Additional information

The current CVE reference for this vulnerability is CVE-2019-2725 [4].

The affected Oracle WebLogic versions are WebLogic 10.X and WebLogic 12.1.3. The vulnerability resides in the wls9_async_response package, included in the certain default WebLogic configurations.

Using data from GreyNoise Intelligence, an increase in scanning activity for port 7001 (the default listening port for Oracle WebLogic) has been observed since April 24th, 2019. This increase suggests that interest in exposed Oracle WebLogic servers has increased since initial disclosure.

References:

[1] https://medium.com/@knownseczoomeye/knownsec-404-team-oracle-weblogic-deserialization-rce-vulnerability-0day-alert-90dd9a79ae93

[2]https://isc.sans.edu/forums/diary/Update+about+Weblogic+CVE20192725+Exploits+Used+in+the+Wild+Patch+Status/24890/

[3] https://www.oracle.com/technetwork/security-advisory/alert-cve-2019-2725-5466295.html#AppendixFMW

[4] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-2725