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SECURITY ADVISORIES
Jul 29, 2021
UPDATE: PetitPotam NTLM Relay Attack
THE THREAT PetitPotam is a variant of the NTLM Relay attack discovered by security researcher Gilles Lionel. It is tracked as an authentication bypass vulnerability in Active Directory (Certificate Services); currently no CVE identifier has been assigned to this vulnerability. Proof of Concept (PoC) code released last week [1] relies on the Encrypting File System Remote (EFSRPC) protocol to…
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eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1000+ organizations in 70+ 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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Jul 12, 2021
Tecala and eSentire Partner to Protect Enterprises across APAC from Business-Disrupting Cyber Attacks
Sydney, 12 July, 2021 - Tecala, Australia’s award-winning technology services and IT consulting provider, today announced it has chosen eSentire, the global Authority in Managed Detection and Response (MDR) cybersecurity services, as their exclusive MDR solution provider in Australia and New Zealand. This partnership will enable Tecala to augment its cybersecurity practice and offer enterprises…
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Security advisories — Feb 26, 2019

Apache Struts 2 Remote Code Vulnerability

2 min read

The eSentire threat intelligence team has observed ongoing network attacks targeting vulnerable Apache Struts 2 web frameworks. The vulnerability CVE-2017-5638 is being actively exploited in the wild resulting in the compromise of integrity and confidentiality of web servers. All customers are advised to scan for and perform remediation on any vulnerable servers on their network immediately.

The Vulnerability

The exploitation of the Struts 2 vulnerability allows the execution of arbitrary commands and remote code on the target server without any authentication. Attackers have been observed installing various types of malware onto vulnerable systems. Compromised web servers can be used to spread malware to website visitors, or users, the compromised server can hijack for ransom or used facilitate further attacks that may result in financial and reputational damage to the affected organizations.

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