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FortinetSecurity

The Analysis of ISC BIND NSEC Record Handling DoS (CVE-2016-9147)

The latest patch for BIND from the Internet Systems Consortium (ISC) fixes a NESC record-related bug. Remote BIND recursive servers may crash when attempting to handle the specifically-crafted query response with NESC record sent by attackers, thereby causing a denial of service (DoS). This potential DoS vulnerability is caused by a RUNTIME CHECK error in Resolver.c when caching the DNS response with NSEC Record. In this post we will examine the BIND source codes and expose the root cause of this vulnerability. The NSEC record (record type…

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FortinetSecurity

The Move to Consolidation and Integration: Simplifying Security in Financial Services

In meeting with large financial institutions, the single biggest thing we keep hearing about is the need to simplify and consolidate their security infrastructure. As Financial Services has evolved from person-to-person transactions to a fully digital business model, the industry’s networks have evolved as well, become increasingly complex and more difficult to defend. During this evolution, as new threats have emerged, financial organizations have gone out and purchased a host of different security products, often from different vendors,…

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FortinetSecurity

Linux Gafgyt.B!tr Exploits Netcore Vulnerability


Over the past few months we have seen a lot of malware activity around the Netcore vulnerability, so we decided to take closer look at its exploitation. The following screen shot shows attack traffic captured through Wireshark. Figure 1 Figure 2 shows a quick enumeration of the sample. (There are different versions of the sample for several architectures. We chose to analyze the MIPS one) Figure 2 My analysis shows that this sample is a variant of the Gafgyt family, with some changes which I will discuss in detail later in this…

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FortinetSecurity

WooCommerce Tax Rates Cross-Site Scripting Vulnerability


WooCommerce is a free eCommerce plugin for WordPress. It has been downloaded over 1 million times and over 30% of all online stores are now powered by WooCommerce. I recently discovered that WooCommerce is vulnerable to a cross-site scripting (XSS) attack. This XSS vulnerability is caused because the WooCommerce tax rates setting incorrectly processes user-supplied data. Remote attackers are tricking WooCommerce administrators into uploading a malicious CSV file that claims to provide required tax rate data for a particular country or region..

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FortinetSecurity

Malicious Macro Bypasses UAC to Elevate Privilege for Fareit Malware


To survive, Macro downloaders have to constantly develop new techniques for evading sandbox environments and anti-virus applications. Recently, Fortinet spotted a malicious document macro designed to bypass Microsoft Windows’ UAC security and execute Fareit, an information stealing malware, with high system privilege. SPAM This malicious document is distributed by a SPAM email.  As part of its social engineering strategy, it is presented in the context of someone being interested in a product. Fig.1 SPAM with the malicious…

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FortinetSecurity

Byline: Meeting The Challenge of Securing the Cloud


What if the data and security elements across an organization’s various cloud environments were well integrated, cohesive and coherent, like a seamlessly woven fabric? Such an approach would allow companies to see, control, integrate and manage the security of their data across the hybrid cloud, thereby enabling them to take better advantage of the economics and elasticity provided by a highly distributed cloud environment.

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