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The Hacker News - Cybersecurity News and Analysis: network security

Hackers Exploit Zero-Day Bugs in Draytek Devices to Target Enterprise Networks

Hackers Exploit Zero-Day Bugs in Draytek Devices to Target Enterprise Networks

March 27, 2020Swati Khandelwal
Cybersecurity researchers with Qihoo 360's NetLab today unveiled details of two recently spotted zero-day cyberattack campaigns in the wild targeting enterprise-grade networking devices manufactured by Taiwan-based DrayTek. According to the report , at least two separate groups of hackers exploited two critical remote command injection vulnerabilities ( CVE-2020-8515 ) affecting DrayTek Vigor enterprise switches, load-balancers, routers and VPN gateway devices to eavesdrop on network traffic and install backdoors. The zero-day attacks started somewhere at the end of last November or at the beginning of December and are potentially still ongoing against thousands of publicly exposed DrayTek switche s, Vigor 2960, 3900, 300B devices that haven't yet been patched with the latest firmware updates released last month. The zero-day vulnerabilities in question can be exploited by any unauthorized remote attackers to inject and execute arbitrary commands on the system, as als
Critical RCE Bug Affects Millions of OpenWrt-based Network Devices

Critical RCE Bug Affects Millions of OpenWrt-based Network Devices

March 24, 2020Mohit Kumar
A cybersecurity researcher today disclosed technical details and proof-of-concept of a critical remote code execution vulnerability affecting OpenWrt , a widely used Linux-based operating system for routers, residential gateways, and other embedded devices that route network traffic. Tracked as CVE-2020-7982 , the vulnerability resides in the OPKG package manager of OpenWrt that exists in the way it performs integrity checking of downloaded packages using the SHA-256 checksums embedded in the signed repository index. While an 'opkg install' command is invoked on the victim system, the flaw could allow a remote man-in-the-middle attacker in a position to intercept the communication of a targeted device to execute arbitrary code by tricking the system into installing a malicious package or software update without verification. If exploited successfully, a remote attacker could gain complete control over the targeted OpenWrt network device, and subsequently, over the netwo
New Wi-Fi Encryption Vulnerability Affects Over A Billion Devices

New Wi-Fi Encryption Vulnerability Affects Over A Billion Devices

February 26, 2020Mohit Kumar
Cybersecurity researchers today uncovered a new high-severity hardware vulnerability residing in the widely-used Wi-Fi chips manufactured by Broadcom and Cypress—apparently powering over a billion devices, including smartphones, tablets, laptops, routers, and IoT gadgets. Dubbed ' Kr00k ' and tracked as CVE-2019-15126 , the flaw could let nearby remote attackers intercept and decrypt some wireless network packets transmitted over-the-air by a vulnerable device. The attacker does not need to be connected to the victim's wireless network and the flaw works against vulnerable devices using WPA2-Personal or WPA2-Enterprise protocols, with AES-CCMP encryption, to protect their network traffic. "Our tests confirmed some client devices by Amazon (Echo, Kindle), Apple (iPhone, iPad, MacBook), Google (Nexus), Samsung (Galaxy), Raspberry (Pi 3), Xiaomi (RedMi), as well as some access points by Asus and Huawei, were vulnerable to Kr00k," ESET researchers said. Acc
New LTE Network Flaw Could Let Attackers Impersonate 4G Mobile Users

New LTE Network Flaw Could Let Attackers Impersonate 4G Mobile Users

February 26, 2020Ravie Lakshmanan
A group of academics from Ruhr University Bochum and New York University Abu Dhabi have uncovered security flaws in 4G LTE and 5G networks that could potentially allow hackers to impersonate users on the network and even sign up for paid subscriptions on their behalf. The impersonation attack — named " IMPersonation Attacks in 4G NeTworks " (or IMP4GT ) — exploits the mutual authentication method used by the mobile phone and the network's base station to verify their respective identities to manipulate data packets in transit. "The IMP4GT attacks exploit the missing integrity protection for user data, and a reflection mechanism of the IP stack mobile operating system. We can make use of the reflection mechanism to build an encryption and decryption oracle. Along with the lack of integrity protection, this allows to inject arbitrary packets and to decrypt packets," the researchers explained. The research was presented at the Network Distributed System Se
5 High Impact Flaws Affect Cisco Routers, Switches, IP Phones and Cameras

5 High Impact Flaws Affect Cisco Routers, Switches, IP Phones and Cameras

February 05, 2020Swati Khandelwal
Several Cisco-manufactured network equipments have been found vulnerable to five new security vulnerabilities that could allow hackers to take complete control over them, and subsequently, over the enterprise networks they power. Four of the five high-severity bugs are remote code execution issues affecting Cisco routers, switches, and IP cameras, whereas the fifth vulnerability is a denial-of-service issue affecting Cisco IP phones. Collectively dubbed ' CDPwn ,' the reported vulnerabilities reside in the various implementations of the Cisco Discovery Protocol (CDP) that comes enabled by default on virtually all Cisco devices and can not be turned OFF. Cisco Discovery Protocol (CDP) is an administrative protocol that works at Layer 2 of the Internet Protocol (IP) stack. The protocol has been designed to let devices discover information about other locally attached Cisco equipment in the same network. According to a report Armis research team shared with The Hacker N
How Organizations Can Defend Against Advanced Persistent Threats

How Organizations Can Defend Against Advanced Persistent Threats

December 25, 2019The Hacker News
Advanced persistent threats (APTs) have emerged to be legitimate concerns for all organizations. APTs are threat actors that breach networks and infrastructures and stealthily lurk within them over extended spans of time. They typically perform complex hacks that allow them to steal or destroy data and resources. According to Accenture , APTs have been organizing themselves into groups that enable them to share tactics and tools to carry out attacks at scale. Russian group Silence APT, for instance, has been reported to be actively targeting financial institutions and have successfully stolen millions of dollars from various banks worldwide. Smaller organizations also need to be wary of such threats. APT groups also use automated tools and botnets to gain access to networks, and these tactics don't discriminate based on size, industry, or value. Any vulnerable infrastructure can be breached. It is now critical for all organizations to understand how APTs operate and impleme
14 Ways to Evade Botnet Malware Attacks On Your Computers

14 Ways to Evade Botnet Malware Attacks On Your Computers

December 18, 2019Wang Wei
Cybercriminals are busy innovators, adapting their weapons and attack strategies, and ruthlessly roaming the web in search of their next big score. Every manner of sensitive information, such as confidential employee records, customers' financial data, protected medical documents, and government files, are all subject to their relentless threats to cybersecurity . Solutions span a broad spectrum, from training email users to ensuring a VPN kill switch is in place, to adding extensive advanced layers of network protection. To successfully guard against severe threats from hackers, worm viruses to malware, such as botnet attacks, network managers need to use all tools and methods that fit well into a comprehensive cyber defense strategy. Of all the menaces mentioned above to a website owner's peace of mind, botnets arguably present the most unsettling form of security risk. They're not the mere achievements of malicious amateur cybercriminals. They're state
Gartner Says the Future of Network Security Lies with SASE

Gartner Says the Future of Network Security Lies with SASE

November 07, 2019The Hacker News
Cloud services and networking are driving the concept of digital businesses, yet traditional networking and cybersecurity architectures are far from meeting the demands of the digital business. Gartner's " The Future of Network Security Is in the Cloud " report spells out the potential for the transformation of networking and security in the cloud, built upon a new networking and security model. That model is called Secure Access Service Edge (SASE) , a term coined by Gartner's leading security analysts Neil MacDonald, Lawrence Orans, and Joe Skorupa. Gartner claims that SASE has the potential to invert the established networking and security service stack from one based in the data center into a design that shifts the focal point of identity to the user and the endpoint device. SASE addresses the numerous problems that have been discovered with traditional cybersecurity methods used in the cloud. Many of those problems have roots with the ideology that netwo
Watch Out IT Admins! Two Unpatched Critical RCE Flaws Disclosed in rConfig

Watch Out IT Admins! Two Unpatched Critical RCE Flaws Disclosed in rConfig

November 03, 2019Swati Khandelwal
If you're using the popular rConfig network configuration management utility to protect and manage your network devices, here we have an important and urgent warning for you. A cybersecurity researcher has recently published details and proof-of-concept exploits for two unpatched, critical remote code execution vulnerabilities in the rConfig utility, at least one of which could allow unauthenticated remote attackers to compromise targeted servers, and connected network devices. Written in native PHP, rConfig is a free, open source network device configuration management utility that allows network engineers to configure and take frequent configuration snapshots of their network devices. According to the project website, rConfig is being used to manage more than 3.3 million network devices, including switches, routers, firewalls, load-balancer, WAN optimizers. What's more worrisome? Both vulnerabilities affect all versions of rConfig, including the latest rConfig ver
How MSPs can become Managed Detection and Response (MDR) Providers

How MSPs can become Managed Detection and Response (MDR) Providers

October 29, 2019The Hacker News
Managed detection and response (MDR) is one of the fastest-growing segments in the cybersecurity market. ESG research from April 2019 reveals that 27% of organizations are actively pursuing an MDR project, while another 11% plan to pursue an MDR project in the future. Cynet now enables service providers to add MDR to their portfolio and gain an important competitive advantage over competitors with Cynet 360 integrated offering of breach protection platform and CyOps 24\7 SOC team ( Learn more here ). MDR is a relatively new security service offering that emerged in recent years to assist the standard organization with a team of experts that provide 24\7 alert prioritization, investigation, and proactive threat hunting — tasks that are typically beyond its in-house capabilities. Cynet 360's complete coverage across endpoints, network, and user accounts makes it a tool of choice that provides MDR providers with real-time threat coverage across the entire environment with a
Cynet's Vulnerability Assessment Enables Organizations to Dramatically Reduce their Risk Exposure

Cynet's Vulnerability Assessment Enables Organizations to Dramatically Reduce their Risk Exposure

October 22, 2019The Hacker News
Protection from cyberattacks begins way before attackers launch their weapons on an organization. Continuously monitoring the environment for security weaknesses and addressing such, if found, is a proven way to provide organizations with immunity to a large portion of attacks. Among the common weaknesses that expose organizations to cyberattacks, the most prominent are software vulnerabilities in systems and applications that attackers relentlessly take advantage of. To assist in the discovery of such vulnerabilities, Cynet now offers organizations a 14 days free access to its Cynet 360 platform in which they can leverage its built-in vulnerability assessment tools. A vulnerability is a bug in the software that enables a threat actor to manipulate it for malicious purposes. For example, a vulnerability in Word enables attackers to craft a Word document in such a manner that when a user double clicks to open it, it transparently opens a connection between the user computer an
Just An SMS Could Let Remote Attackers Access All Your Emails, Experts Warn

Just An SMS Could Let Remote Attackers Access All Your Emails, Experts Warn

September 04, 2019Mohit Kumar
Beware! Billion of Android users can easily be tricked into changing their devices' critical network settings with just an SMS-based phishing attack. Whenever you insert a new SIM in your phone and connects to your cellular network for the very first time, your carrier service automatically configures or sends you a message containing network-specific settings required to connect to data services. While manually installing it on your device, have you ever noticed what configurations these messages, technically known as OMA CP messages, include? Well, believe me, most users never bother about it if their mobile Internet services work smoothly. But you should worry about these settings, as installing untrusted settings can put your data privacy at risk, allowing remote attackers to spy on your data communications, a team of cybersecurity researchers told The Hacker News. Mobile carriers send OMA CP (Open Mobile Alliance Client Provisioning) messages containing APN settin
DHS Warns Small Airplanes Vulnerable to Flight Data Manipulation Attacks

DHS Warns Small Airplanes Vulnerable to Flight Data Manipulation Attacks

July 31, 2019Swati Khandelwal
What could be more horrifying than knowing that a hacker can trick the plane's electronic systems into displaying false flight data to the pilot, which could eventually result in loss of control? Of course, the attacker would never wish to be on the same flight, so in this article, we are going to talk about a potential loophole that could allow an attacker to exploit a vulnerability with some level of "unsupervised" physical access to a small aircraft before the plane takes off. The United States Department of Homeland Security's (DHS) has issued an alert for the same, warning owners of small aircraft to be on guard against a vulnerability that could enable attackers to easily hack the plane's CAN bus and take control of key navigation systems. The vulnerability, discovered by a cybersecurity researcher at Rapid 7, resides in the modern aircraft's implementation of CAN (Controller Area Network) bus—a popular vehicular networking standard used in au
Engage Your Management with the Definitive 'Security for Management' Presentation Template

Engage Your Management with the Definitive 'Security for Management' Presentation Template

July 16, 2019The Hacker News
In every organization, there is a person who's directly accountable for cybersecurity. The name of the role varies per the organization's size and maturity – CISO, CIO, and Director of IT are just a few common examples – but the responsibility is similar in all places. They're the person who understands the risk and exposure, knows how prepared the team and most important – what the gaps are and how they can be best addressed. Apart from actually securing the organization – and losing some sleep over it – this individual has another equally important task: to communicate the security risk, needs, and status to the company's management. After all, the level of security rises in direct proportion to the amount of invested resources, and management people are the ones who decide and allocate them. Since management people are not typically cybersecurity savvy, engaging them can be challenging – one must find the balance between high-level explanations, a direct c
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