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Malware Exploits SHELLSHOCK Vulnerability to Hack NAS Devices

Malware Exploits SHELLSHOCK Vulnerability to Hack NAS Devices

Dec 16, 2014
The year is about to end, but serious threats like  Shellshock is " far from over ". Cyber criminals are actively exploiting this critical GNU Bash vulnerability to target those network attached storage devices that are still not patched and ready for exploitation. Security researchers have unearthed a malicious worm that is designed to plant backdoors on network-attached storage (NAS) systems made by Taiwan-based QNAP and gain full access to the contents of those devices. The worm is spread among QNAP devices, which run an embedded Linux operating system, by the exploitation of the GNU Bash vulnerability known as ShellShock or Bash, according to security researchers at the Sans Institute. QNAP vendor released a patch in early October to address the flaw in its Turbo NAS product, but because the patches are not automatic or easy to apply for many users, so a statistically significant portion of systems remain vulnerable and exposed to the Bash bug . Sh
The Bash Vulnerability: How to Protect your Environment

The Bash Vulnerability: How to Protect your Environment

Oct 23, 2014
A recently discovered hole in the security of the Bourne-Again Shell (bash) has the majority of Unix/Linux (including OS X) admins sweating bullets. You should be, too--attackers have already developed exploits to unleash on unpatched web servers, network services and daemons that use shell scripts with environment variables ( this can include network equipment, industrial devices, etc .) Jaime Blasco , AlienVault Labs Director, gives a good explanation of the exploit in this blog post . And, the video below gives you a quick overview of how AlienVault Unified Security Management (USM)  can detect malicious traffic on your network trying to locate and exploit this vulnerability. Basically, this vulnerability allows an attacker to execute shell commands on a server due to an issue in how bash interprets environment variables (such as "cookie", "host", "referrer"). Exploiting this allows an attacker to run shell commands directly. Once they have access to run shell comm
Making Sense of Operational Technology Attacks: The Past, Present, and Future

Making Sense of Operational Technology Attacks: The Past, Present, and Future

Mar 21, 2024Operational Technology / SCADA Security
When you read reports about cyber-attacks affecting operational technology (OT), it's easy to get caught up in the hype and assume every single one is sophisticated. But are OT environments all over the world really besieged by a constant barrage of complex cyber-attacks? Answering that would require breaking down the different types of OT cyber-attacks and then looking back on all the historical attacks to see how those types compare.  The Types of OT Cyber-Attacks Over the past few decades, there has been a growing awareness of the need for improved cybersecurity practices in IT's lesser-known counterpart, OT. In fact, the lines of what constitutes a cyber-attack on OT have never been well defined, and if anything, they have further blurred over time. Therefore, we'd like to begin this post with a discussion around the ways in which cyber-attacks can either target or just simply impact OT, and why it might be important for us to make the distinction going forward. Figure 1 The Pu
Remotely Exploitable 'Bash Shell' Vulnerability Affects Linux, Unix and Apple Mac OS X

Remotely Exploitable 'Bash Shell' Vulnerability Affects Linux, Unix and Apple Mac OS X

Sep 25, 2014
A Critical remotely exploitable vulnerability has been discovered in the widely used Linux and Unix command-line shell, known as Bash , aka the GNU Bourne Again Shell , leaving countless websites, servers, PCs, OS X Macs, various home routers, and many more open to the cyber criminals. Earlier today, Stephane Chazelas publicly disclosed the technical details of the remote code execution vulnerability in Bash which affects most of the Linux distributions and servers worldwide. REMOTELY EXPLOITABLE SHELLSHOCK The vulnerability (CVE-2014-6271) affects versions 1.14 through 4.3 of GNU Bash and being named as Bash Bug , and Shellshock by the Security researchers on the Internet discussions. According to the technical details, a hacker could exploit this bash bug to execute shell commands remotely on a target machine using specifically crafted variables. " In many common configurations, this vulnerability is exploitable over the network, " Stephane said. This 22-ye
cyber security

Automated remediation solutions are crucial for security

websiteWing SecurityShadow IT / SaaS Security
Especially when it comes to securing employees' SaaS usage, don't settle for a longer to-do list. Auto-remediation is key to achieving SaaS security.
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