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China's BlackTech Hacking Group Exploited Routers to Target U.S. and Japanese Companies

China's BlackTech Hacking Group Exploited Routers to Target U.S. and Japanese Companies
Sep 28, 2023 Cyber Espionage / Threat Intel
Cybersecurity agencies from Japan and the U.S. have warned of attacks mounted by a state-backed hacking group from China to stealthily tamper with branch routers and use them as jumping-off points to access the networks of various companies in the two countries. The attacks have been tied to a malicious cyber actor dubbed  BlackTech  by the U.S. National Security Agency (NSA), Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), Japan National Police Agency (NPA), and the Japan National Center of Incident Readiness and Strategy for Cybersecurity (NISC). "BlackTech has demonstrated capabilities in modifying router firmware without detection and exploiting routers' domain-trust relationships to pivot from international subsidiaries to headquarters in Japan and the United States, which are the primary targets," the agencies  said  in a joint alert. Targeted sectors encompass government, industrial, technology, media, electronics

CISA Flags 8 Actively Exploited Flaws in Samsung and D-Link Devices

CISA Flags 8 Actively Exploited Flaws in Samsung and D-Link Devices
Jul 03, 2023 Mobile Security / Network Security
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  placed  a set of eight flaws to the Known Exploited Vulnerabilities ( KEV ) catalog, based on evidence of active exploitation. This includes six shortcomings affecting Samsung smartphones and two vulnerabilities impacting D-Link devices. All the flaws have been patched as of 2021. CVE-2021-25394  (CVSS score: 6.4) - Samsung mobile devices race condition vulnerability CVE-2021-25395  (CVSS score: 6.4) - Samsung mobile devices race condition vulnerability CVE-2021-25371  (CVSS score: 6.7) - An unspecified vulnerability in the DSP driver used in Samsung mobile devices that allows loading of arbitrary ELF libraries CVE-2021-25372  (CVSS score: 6.7) - Samsung mobile devices improper boundary check within the DSP driver in Samsung mobile devices CVE-2021-25487  (CVSS score: 7.8) - Samsung mobile devices out-of-bounds read vulnerability leading to arbitrary code execution CVE-2021-25489  (CVSS score: 5.5) - Samsung

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

Cisco Business Routers Found Vulnerable to Critical Remote Hacking Flaws

Cisco Business Routers Found Vulnerable to Critical Remote Hacking Flaws
Aug 04, 2022
Cisco on Wednesday rolled out patches to address eight security vulnerabilities , three of which could be weaponized by an unauthenticated attacker to gain remote code execution (RCE) or cause a denial-of-service (DoS) condition on affected devices. The most critical of the flaws impact Cisco Small Business RV160, RV260, RV340, and RV345 Series routers. Tracked as CVE-2022-20842 (CVSS score: 9.8), the weakness stems from an insufficient validation of user-supplied input to the web-based management interface of the appliances. "An attacker could exploit this vulnerability by sending crafted HTTP input to an affected device," Cisco said in an advisory. "A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a DoS condition." A second shortcoming relates to a command injection vulnerability residing in the routers' web filter database update featur

Automated remediation solutions are crucial for security

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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.

New KCodes NetUSB Bug Affect Millions of Routers from Different Vendors

New KCodes NetUSB Bug Affect Millions of Routers from Different Vendors
Jan 11, 2022
Cybersecurity researchers have detailed a high severity flaw in KCodes NetUSB component that's integrated into millions of end-user router devices from Netgear, TP-Link, Tenda, EDiMAX, D-Link, and Western Digital, among others. KCodes  NetUSB  is a Linux kernel module that enables devices on a local network to provide USB-based services over IP. Printers, external hard drives, and flash drives plugged into a Linux-based embedded system (e.g., a router) are made available via the network using the driver. CVE-2021-45608  (CVSS score: 9.8), as the security flaw is tracked as, relates to a  buffer overflow vulnerability  that, if successfully exploited, can allow attackers to execute code remotely in the kernel and perform malicious activities of their choice, according to a  report  shared by SentinelOne with The Hacker News. This is the latest in a string of NetUSB vulnerabilities that has been patched in recent years. In May 2015, researchers from SEC Consult disclosed another

Critical Flaws Reported in Cisco VPN Routers for Businesses—Patch ASAP

Critical Flaws Reported in Cisco VPN Routers for Businesses—Patch ASAP
Feb 05, 2021
Cisco has rolled out fixes for multiple critical vulnerabilities in the web-based management interface of Small Business routers that could potentially allow an unauthenticated, remote attacker to execute arbitrary code as the root user on an affected device. The  flaws  — tracked from CVE-2021-1289 through CVE-2021-1295 (CVSS score 9.8) — impact RV160, RV160W, RV260, RV260P, and RV260W VPN routers running a firmware release earlier than Release 1.0.01.02. Along with the aforementioned three vulnerabilities, patches have also been released for two more  arbitrary file write flaws  (CVE-2021-1296 and CVE-2021-1297) affecting the same set of VPN routers that could have made it possible for an adversary to overwrite arbitrary files on the vulnerable system. All the nine security issues were reported to the networking equipment maker by security researcher Takeshi Shiomitsu, who has previously uncovered  similar critical flaws  in RV110W, RV130W, and RV215W Routers that could be lever
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