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Multiple Flaws Affecting Realtek Wi-Fi SDKs Impact Nearly a Million IoT Devices

Multiple Flaws Affecting Realtek Wi-Fi SDKs Impact Nearly a Million IoT Devices

August 16, 2021Ravie Lakshmanan
Taiwanese chip designer Realtek is warning of  four security vulnerabilities  in three software development kits (SDKs) accompanying its WiFi modules, which are used in almost 200 IoT devices made by at least 65 vendors. The flaws, which affect Realtek SDK v2.x, Realtek "Jungle" SDK v3.0/v3.1/v3.2/v3.4.x/v3.4T/v3.4T-CT, and Realtek "Luna" SDK up to version 1.3.2, could be abused by attackers to fully compromise the target device and execute arbitrary code with the highest level of privilege — CVE-2021-35392  (CVSS score: 8.1) - Heap buffer overflow vulnerability in 'WiFi Simple Config' server due to unsafe crafting of SSDP NOTIFY messages CVE-2021-35393  (CVSS score: 8.1) - Stack buffer overflow vulnerability in 'WiFi Simple Config' server due to unsafe parsing of the UPnP SUBSCRIBE/UNSUBSCRIBE Callback header CVE-2021-35394  (CVSS score: 9.8) - Multiple buffer overflow vulnerabilities and an arbitrary command injection vulnerability in 'UD
Turns Out That Low-Risk iOS Wi-Fi Naming Bug Can Hack iPhones Remotely

Turns Out That Low-Risk iOS Wi-Fi Naming Bug Can Hack iPhones Remotely

July 19, 2021Ravie Lakshmanan
The Wi-Fi network name bug that was found to completely disable an iPhone's networking functionality had remote code execution capabilities and was silently fixed by Apple earlier this year, according to new research. The denial-of-service vulnerability,  which came to light last month , stemmed from the way iOS handled string formats associated with the SSID input, triggering a crash on any up-to-date iPhone that connected to wireless access points with percent symbols in their names such as "%p%s%s%s%s%n." While the issue is remediable by resetting the network settings (Settings > General > Reset > Reset Network Settings), Apple is  expected to push a patch  for the bug in its iOS 14.7 update, which is currently available to developers and public beta testers. But in what could have had far-reaching consequences, researchers from mobile security automation firm ZecOps found that the same bug could be exploited to achieve remote code execution (RCE) on targ
Microsoft Discloses Critical Bugs Allowing Takeover of NETGEAR Routers

Microsoft Discloses Critical Bugs Allowing Takeover of NETGEAR Routers

June 30, 2021Ravie Lakshmanan
Cybersecurity researchers have detailed critical security vulnerabilities affecting  NETGEAR DGN2200v1 series routers , which they say could be reliably abused as a jumping-off point to compromise a network's security and gain unfettered access. The three  HTTPd  authentication security weaknesses (CVSS scores: 7.1 – 9.4) impact routers running firmware versions prior to v1.0.0.60, and have since been  fixed by the company  in December 2020 as part of a coordinated vulnerability disclosure process. "The rising number of firmware attacks and ransomware attacks via VPN devices and other internet-facing systems are examples of attacks initiated outside and below the operating system layer," Microsoft 365 Defender Research Team's Jonathan Bar Or  said . "As these types of attacks become more common, users must look to secure even the single-purpose software that run their hardware—like routers." In a nutshell, the flaws allow accessing router management pa
Your Amazon Devices to Automatically Share Your Wi-Fi With Neighbors

Your Amazon Devices to Automatically Share Your Wi-Fi With Neighbors

May 31, 2021Ravie Lakshmanan
Starting June 8, Amazon will automatically enable a feature on its family of hardware devices, including Echo speakers, Ring Video Doorbells, Ring Floodlight Cams, and Ring Spotlight Cams, that will share a small part of your Internet bandwidth with nearby neighbors — unless you choose to opt-out. To that effect, the company intends to register all compatible devices that are operational in the U.S. into an ambitious location-tracking system called Sidewalk as it prepares to roll out the shared mesh network in the country. Originally  announced  in September 2019,  Sidewalk  is part of Amazon's efforts to build a long-range wireless network that leverages a combination of Bluetooth and 900 MHz spectrum ( FSK ) to help Echo, Ring, Tile trackers, and other Sidewalk-enabled devices communicate over the internet without Wi-Fi. Sidewalk is designed to extend the working range of low-bandwidth devices, and help devices stay connected even if they are outside the range of a user's
Nearly All Wi-Fi Devices Are Vulnerable to New FragAttacks

Nearly All Wi-Fi Devices Are Vulnerable to New FragAttacks

May 12, 2021Ravie Lakshmanan
Three design and multiple implementation flaws have been disclosed in IEEE 802.11 technical standard that undergirds Wi-Fi, potentially enabling an adversary to take control over a system and plunder confidential data. Called  FragAttacks  (short for FRgmentation and AGgregation Attacks), the weaknesses impact all Wi-Fi security protocols, from Wired Equivalent Privacy (WEP) all the way to Wi-Fi Protected Access 3 (WPA3), thus virtually putting almost every wireless-enabled device at risk of attack. "An adversary that is within radio range of a victim can abuse these vulnerabilities to steal user information or attack devices," Mathy Vanhoef, a security academic at New York University Abu Dhabi, said. "Experiments indicate that every Wi-Fi product is affected by at least one vulnerability and that most products are affected by several vulnerabilities." IEEE 802.11 provides the basis for all modern devices using the Wi-Fi family of network protocols, allowing lap
Critical Bugs Found in Popular Realtek Wi-Fi Module for Embedded Devices

Critical Bugs Found in Popular Realtek Wi-Fi Module for Embedded Devices

February 04, 2021Ravie Lakshmanan
Major vulnerabilities have been discovered in the Realtek RTL8195A Wi-Fi module that could have been exploited to gain root access and take complete control of a device's wireless communications. The six flaws were  reported  by researchers from Israeli IoT security firm Vdoo. The  Realtek RTL8195A  module is a standalone, low-power-consumption Wi-Fi hardware module targeted at embedded devices used in several industries such as agriculture, smart home, healthcare, gaming, and automotive sectors. It also makes use of an "Ameba" API, allowing developers to communicate with the device via Wi-Fi, HTTP, and  MQTT , a lightweight messaging protocol for small sensors and mobile devices. Although the issues uncovered by Vdoo were verified only on RTL8195A, the researchers said they extend to other modules as well, including RTL8711AM, RTL8711AF, and RTL8710AF. The flaws concern a mix of stack overflow, and out-of-bounds reads that stem from the Wi-Fi module's WPA2  fo
A Bug Could Let Attackers Hijack Firefox for Android via Wi-Fi Network

A Bug Could Let Attackers Hijack Firefox for Android via Wi-Fi Network

September 19, 2020Mohit Kumar
Dear Android users, if you use the Firefox web browser on your smartphones, make sure it has been updated to version 80 or the latest available version on the Google Play Store. ESET security researcher Lukas Stefanko yesterday tweeted an alert demonstrating the exploitation of a recently disclosed high-risk remote command execution vulnerability affecting the Firefox app for Android. Discovered originally by Australian security researcher Chris Moberly , the vulnerability resides in the SSDP engine of the browser that can be exploited by an attacker to target Android smartphones connected to the same Wi-Fi network as the attacker, with Firefox app installed. SSDP, stands for Simple Service Discovery Protocol, is a UDP based protocol that is a part of UPnP for finding other devices on a network. In Android, Firefox periodically sends out SSDP discovery messages to other devices connected to the same network, looking for second-screen devices to cast. Any device on the local netwo
Emotet Malware Now Hacks Nearby Wi-Fi Networks to Infect New Victims

Emotet Malware Now Hacks Nearby Wi-Fi Networks to Infect New Victims

February 12, 2020Ravie Lakshmanan
Emotet, the notorious trojan behind a number of botnet-driven spam campaigns and ransomware attacks, has found a new attack vector: using already infected devices to identify new victims that are connected to nearby Wi-Fi networks. According to researchers at Binary Defense , the newly discovered Emotet sample leverages a "Wi-Fi spreader" module to scan Wi-Fi networks, and then attempts to infect devices that are connected to them. The cybersecurity firm said the Wi-Fi spreader has a timestamp of April 16, 2018, indicating the spreading behavior has been running "unnoticed" for close to two years until it was detected for the first time last month. The development marks an escalation of Emotet's capabilities, as networks in close physical proximity to the original victim are now susceptible to infection. How Does Emotet's Wi-Fi Spreader Module Work? The updated version of the malware works by leveraging an already compromised host to list all
Canon DSLR Cameras Can Be Hacked With Ransomware Remotely

Canon DSLR Cameras Can Be Hacked With Ransomware Remotely

August 12, 2019Mohit Kumar
The threat of ransomware is becoming more prevalent and severe as attackers' focus has now moved beyond computers to smartphones and other Internet-connected smart devices. In its latest research, security researchers at cybersecurity firm CheckPoint demonstrated how easy it is for hackers to remotely infect a digital DSLR camera with ransomware and hold private photos and videos hostage until victims pay a ransom. Yes, you heard me right. Security researcher Eyal Itkin discovered several security vulnerabilities in the firmware of Canon cameras that can be exploited over both USB and WiFi, allowing attackers to compromise and take over the camera and its features. According to a security advisory  released  by Canon, the reported security flaws affect Canon EOS-series digital SLR and mirrorless cameras, PowerShot SX740 HS, PowerShot SX70 HS, and PowerShot G5X Mark II. "Imagine how would you respond if attackers inject ransomware into both your computer and the c
New Flaws in Qualcomm Chips Expose Millions of Android Devices to Hacking

New Flaws in Qualcomm Chips Expose Millions of Android Devices to Hacking

August 06, 2019Mohit Kumar
A series of critical vulnerabilities have been discovered in Qualcomm chipsets that could allow hackers to compromise Android devices remotely just by sending malicious packets over-the-air with no user interaction. Discovered by security researchers from Tencent's Blade team, the vulnerabilities, collectively known as QualPwn , reside in the WLAN and modem firmware of Qualcomm chipsets that powers hundreds of millions of Android smartphones and tablets. According to researchers, there are primarily two critical vulnerabilities in Qualcomm chipsets and one in the Qualcomm's Linux kernel driver for Android which if chained together could allow attackers to take complete control over targeted Android devices within their Wi-Fi range. "One of the vulnerabilities allows attackers to compromise the WLAN and Modem over-the-air. The other allows attackers to compromise the Android Kernel from the WLAN chip. The full exploit chain allows attackers to compromise the Andr
SUPRA Smart TV Flaw Lets Attackers Hijack Screens With Any Video

SUPRA Smart TV Flaw Lets Attackers Hijack Screens With Any Video

June 03, 2019Wang Wei
I have said it before, and I will say it again — Smart devices are one of the dumbest technologies, so far, when it comes to protecting users' privacy and security. As more and more smart devices are being sold worldwide, consumers should be aware of security and privacy risks associated with the so-called intelligent devices. When it comes to internet-connected devices, smart TVs are the ones that have highly-evolved, giving consumers a lot of options to enjoy streaming, browsing the Internet, gaming, and saving files on the Cloud—technically allowing you to do everything on it as a full-fledged PC. Apparently, in the past few years we have reported how Smart TVs can be used to spy on end users without their explicit consent, how remote hackers can even take full control over a majority of Smart TVs without having any physical access to them, and how flaws in Smart TVs allowed hackers to hijack TV screen . Now most recently, Smart TVs selling under SUPRA brand-name h
New Exploit Threatens Over 9,000 Hackable Cisco RV320/RV325 Routers Worldwide

New Exploit Threatens Over 9,000 Hackable Cisco RV320/RV325 Routers Worldwide

January 28, 2019Mohit Kumar
If the connectivity and security of your organization rely on Cisco RV320 or RV325 Dual Gigabit WAN VPN routers, then you need to immediately install the latest firmware update released by the vendor last week. Cyber attackers have actively been exploiting two newly patched high-severity router vulnerabilities in the wild after a security researcher released their proof-of-concept exploit code on the Internet last weekend. The vulnerabilities in question are a command injection flaw (assigned CVE-2019-1652) and an information disclosure flaw (assigned CVE-2019-1653), a combination of which could allow a remote attacker to take full control of an affected Cisco router. The first issue exists in RV320 and RV325 dual gigabit WAN VPN routers running firmware versions 1.4.2.15 through 1.4.2.19, and the second affects firmware versions 1.4.2.15 and 1.4.2.17, according to the Cisco's advisory . Both the vulnerabilities, discovered and responsibly reported to the company by German s
Thousands of Google Chromecast Devices Hijacked to Promote PewDiePie

Thousands of Google Chromecast Devices Hijacked to Promote PewDiePie

January 03, 2019Mohit Kumar
A group of hackers has hijacked tens of thousands of Google's Chromecast streaming dongles, Google Home smart speakers and smart TVs with built-in Chromecast technology in recent weeks by exploiting a bug that's allegedly been ignored by Google for almost five years. The attackers, who go by Twitter handles @HackerGiraffe and @j3ws3r, managed to hijack Chromecasts' feeds and display a pop-up, spreading a security warning as well as controversial YouTube star PewDiePie propaganda. The hackers are the same ones who hijacked more than 50,000 internet-connected printers worldwide late last year by exploiting vulnerable printers to print out flyers asking everyone to subscribe to PewDiePie YouTube channel. This time, the hackers remotely scanned the internet for compatible devices, including Chromecasts, exposed to the internet through poorly configured routers that have Universal Plug and Play [UPnP] enabled by default. The hackers then exploited a design flaw in Chrome
New Exploit for MikroTik Router WinBox Vulnerability Gives Full Root Access

New Exploit for MikroTik Router WinBox Vulnerability Gives Full Root Access

October 08, 2018Swati Khandelwal
A known vulnerability in MikroTik routers is potentially far more dangerous than previously thought. A cybersecurity researcher from Tenable Research has released a new proof-of-concept (PoC) RCE attack for an old directory traversal vulnerability that was found and patched within a day of its discovery in April this year. The vulnerability, identified as CVE-2018-14847, was initially rated as medium in severity but should now be rated critical because the new hacking technique used against vulnerable MikroTik routers allows attackers to remotely execute code on affected devices and gain a root shell. The vulnerability impacts Winbox—a management component for administrators to set up their routers using a Web-based interface—and a Windows GUI application for the RouterOS software used by the MikroTik devices. The vulnerability allows "remote attackers to bypass authentication and read arbitrary files by modifying a request to change one byte related to a Session ID.&qu
Flaw in 4GEE WiFi Modem Could Leave Your Computer Vulnerable

Flaw in 4GEE WiFi Modem Could Leave Your Computer Vulnerable

September 21, 2018Swati Khandelwal
A high-severity vulnerability has been discovered in 4G-based wireless 4GEE Mini modem sold by mobile operator EE that could allow an attacker to run a malicious program on a targeted computer with the highest level of privileges in the system. The vulnerability—discovered by 20-year-old Osanda Malith , a Sri Lankan security researcher at ZeroDayLab—can be exploited by a low privileged user account to escalate privileges on any Windows computer that had once connected to the EE Mini modem via USB. This, in turn, would allow an attacker to gain full system access to the targeted remote computer and thereby, perform any malicious actions, such as installing malware, rootkits, keylogger, or stealing personal information. 4G Mini WiFi modem is manufactured by Alcatel and sold by EE, a mobile operator owned by BT Group— Britain's largest digital communications company that serves over 31 million connections across its mobile, fixed and wholesale networks. How Does the Attack
Casino Gets Hacked Through Its Internet-Connected Fish Tank Thermometer

Casino Gets Hacked Through Its Internet-Connected Fish Tank Thermometer

April 16, 2018Wang Wei
Internet-connected technology, also known as the Internet of Things (IoT), is now part of daily life, with smart assistants like Siri and Alexa to cars, watches, toasters, fridges, thermostats, lights, and the list goes on and on. But of much greater concern, enterprises are unable to secure each and every device on their network, giving cybercriminals hold on their network hostage with just one insecure device. Since IoT is a double-edged sword, it not only poses huge risks to enterprises worldwide but also has the potential to severely disrupt other organisations, or the Internet itself . There's no better example than Mirai , the botnet malware that knocked the world's biggest and most popular websites offline for few hours over a year ago. We have another great example that showcases how one innocent looking insecure IoT device connected to your network can cause security nightmares. Nicole Eagan, the CEO of cybersecurity company Darktrace, told attendees at
Google Researcher Publishes PoC Exploit for Apple iPhone Wi-Fi Chip Hack

Google Researcher Publishes PoC Exploit for Apple iPhone Wi-Fi Chip Hack

September 27, 2017Unknown
You have now another good reason to update your iPhone to newly released iOS 11—a security vulnerability in iOS 10 and earlier now has a working exploit publicly available. Gal Beniamini, a security researcher with Google Project Zero, has discovered a security vulnerability (CVE-2017-11120) in Apple's iPhone and other devices that use Broadcom Wi-Fi chips and is hell easy to exploit. This flaw is similar to the one Beniamini discovered in the Broadcom WiFi SoC (Software-on-Chip) back in April, and BroadPwn vulnerability disclosed by an Exodus Intelligence researcher Nitay Artenstein, earlier this summer. All flaws allow a remote takeover of smartphones over local Wi-Fi networks. The newly discovered vulnerability, which Apple fixed with its major iOS update released on September 19, could allow hackers to take control over the victim's iPhone remotely. All they need is the iPhone's MAC address or network-port ID. And since obtaining the MAC address of a connec
Cyberspies Are Using Leaked NSA Hacking Tools to Spy On Hotels Guests

Cyberspies Are Using Leaked NSA Hacking Tools to Spy On Hotels Guests

August 11, 2017Swati Khandelwal
An infamous Russian-linked cyber-espionage group has been found re-using the same leaked NSA hacking tool that was deployed in the WannaCry and NotPetya outbreaks—this time to target Wi-Fi networks to spy on hotel guests in several European countries. Security researchers at FireEye have uncovered an ongoing campaign that remotely steals credentials from high-value guests using Wi-Fi networks at European hotels and attributed it to the Fancy Bear hacking group. Fancy Bear —also known as APT28, Sofacy, Sednit, and Pawn Storm—has been operating since at least 2007 and also been accused of hacking the Democratic National Committee (DNC) and Clinton Campaign in an attempt to influence the U.S. presidential election. The newly-discovered campaign is also exploiting the Windows SMB exploit (CVE-2017-0143), called EternalBlue , which was one of many exploits allegedly used by the NSA for surveillance and leaked by the Shadow Brokers in April. EternalBlue is a security vulnerabi
WikiLeaks Reveals How CIA Malware Tracks Geo-Location of its Targeted

WikiLeaks Reveals How CIA Malware Tracks Geo-Location of its Targeted

June 28, 2017Mohit Kumar
WikiLeaks has just published a new batch of the ongoing Vault 7 leak , and this time the whistleblowing website has unveiled a classified malware for that tracks geo-location of targeted PCs and laptops running the Microsoft Windows operating system. In short, the malware does it by capturing the IDs of nearby public hotspots and then matching them with the global database of public Wi-Fi hotspots' locations. Dubbed ELSA , the alleged CIA's project consists of two main elements: the processing component (Operator Terminal) and the implant (Windows Target) which is typically being deployed on a target Windows host. Here's How the CIA's ELSA Malware Works The Elsa system first installs the malware on a targeted WiFi-enabled machine using separate CIA exploits to gain persistent access on the device. The malware then uses Wi-Fi hardware of the infected computer to scan nearby visible WiFi access points (AP) and records their ESSID – stands for Extended Service Se
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