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Category — zero-day
3 Actively Exploited Zero-Day Flaws Patched in Microsoft's Latest Security Update

3 Actively Exploited Zero-Day Flaws Patched in Microsoft's Latest Security Update

Jan 15, 2025 Patch Tuesday / Zero-Day
Microsoft kicked off 2025 with a new set of patches for a total of 161 security vulnerabilities across its software portfolio, including three zero-days that have been actively exploited in attacks. Of the 161 flaws, 11 are rated Critical, and 149 are rated Important in severity. One other flaw, a non-Microsoft CVE related to a Windows Secure Boot bypass (CVE-2024-7344), has not been assigned any severity. According to the Zero Day Initiative , the update marks the largest number of CVEs addressed in a single month since at least 2017. The fixes are in addition to seven vulnerabilities the Windows maker addressed in its Chromium-based Edge browser since the release of December 2024 Patch Tuesday updates. Prominent among the patches released by Microsoft is a trio of flaws in Windows Hyper-V NT Kernel Integration VSP ( CVE-2025-21333 , CVE-2025-21334 , and CVE-2025-21335 , CVSS scores: 7.8) that the company said has come under active exploitation in the wild - "An attacker...
Fortinet Warns of New Zero-Day Used in Attacks on Firewalls with Exposed Interfaces

Fortinet Warns of New Zero-Day Used in Attacks on Firewalls with Exposed Interfaces

Jan 14, 2025 Vulnerability / Network Security
Threat hunters are calling attention to a new campaign that has targeted Fortinet FortiGate firewall devices with management interfaces exposed on the public internet. "The campaign involved unauthorized administrative logins on management interfaces of firewalls, creation of new accounts, SSL VPN authentication through those accounts, and various other configuration changes," cybersecurity firm Arctic Wolf said in an analysis published last week. The malicious activity is believed to have commenced in mid-November 2024, with unknown threat actors gaining unauthorized access to management interfaces on affected firewalls to alter configurations and extract credentials using DCSync . The exact initial access vector is currently not known, although it has been assessed with "high confidence" that it's likely driven by the exploitation of a zero-day vulnerability given the "compressed timeline across affected organizations as well as firmware versions af...
Product Walkthrough: How Reco Discovers Shadow AI in SaaS

Product Walkthrough: How Reco Discovers Shadow AI in SaaS

Jan 09, 2025AI Security / SaaS Security
As SaaS providers race to integrate AI into their product offerings to stay competitive and relevant, a new challenge has emerged in the world of AI: shadow AI.  Shadow AI refers to the unauthorized use of AI tools and copilots at organizations. For example, a developer using ChatGPT to assist with writing code, a salesperson downloading an AI-powered meeting transcription tool, or a customer support person using Agentic AI to automate tasks – without going through the proper channels. When these tools are used without IT or the Security team's knowledge, they often lack sufficient security controls, putting company data at risk. Shadow AI Detection Challenges Because shadow AI tools often embed themselves in approved business applications via AI assistants, copilots, and agents they are even more tricky to discover than traditional shadow IT. While traditional shadow apps can be identified through network monitoring methodologies that scan for unauthorized connections based on...
Top 10 Cybersecurity Trends to Expect in 2025

Top 10 Cybersecurity Trends to Expect in 2025

Dec 23, 2024 Cybersecurity / Threat Intelligence
The 2025 cybersecurity landscape is increasingly complex, driven by sophisticated cyber threats, increased regulation, and rapidly evolving technology. In 2025, organizations will be challenged with protecting sensitive information for their customers while continuing to provide seamless and easy user experiences. Here's a closer look at ten emerging challenges and threats set to shape the coming year. 1. AI as a weapon for attackers The dual-use nature of AI has created a great deal of risk to organizations as cybercriminals increasingly harness the power of AI to perpetrate highly sophisticated attacks. AI-powered malware can change its behavior in real-time. This means it can evade traditional methods of detection and find and exploit vulnerabilities with uncanny precision. Automated reconnaissance tools let attackers compile granular intelligence about systems, employees, and defenses of a target at unprecedented scale and speed. AI use also reduces the planning time for a...
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Secure Your Azure: Proactive Tips for Cloud Protection

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Discover how to boost your Azure cloud security with practical steps to help you maintain control and visibility.
Sophos Issues Hotfixes for Critical Firewall Flaws: Update to Prevent Exploitation

Sophos Issues Hotfixes for Critical Firewall Flaws: Update to Prevent Exploitation

Dec 20, 2024 Firewall Security / Vulnerability
Sophos has released hotfixes to address three security flaws in Sophos Firewall products that could be exploited to achieve remote code execution and allow privileged system access under certain conditions. Of the three, two are rated Critical in severity. There is currently no evidence that the shortcomings have been exploited in the wild. The list of vulnerabilities is as follows - CVE-2024-12727 (CVSS score: 9.8) - A pre-auth SQL injection vulnerability in the email protection feature that could lead to remote code execution, if a specific configuration of Secure PDF eXchange (SPX) is enabled in combination with the firewall running in High Availability ( HA ) mode. CVE-2024-12728 (CVSS score: 9.8) - A weak credentials vulnerability arising from a suggested and non-random SSH login passphrase for High Availability (HA) cluster initialization that remains active even after the HA establishment process completed, thereby exposing an account with privileged access if SSH is ena...
U.S. Charges Chinese Hacker for Exploiting Zero-Day in 81,000 Sophos Firewalls

U.S. Charges Chinese Hacker for Exploiting Zero-Day in 81,000 Sophos Firewalls

Dec 11, 2024 Vulnerability / Data Breach
The U.S. government on Tuesday unsealed charges against a Chinese national for allegedly breaking into thousands of Sophos firewall devices globally in 2020. Guan Tianfeng (aka gbigmao and gxiaomao), who is said to have worked at Sichuan Silence Information Technology Company, Limited, has been charged with conspiracy to commit computer fraud and conspiracy to commit wire fraud. Guan has been accused of developing and testing a zero-day security vulnerability used to conduct the attacks against Sophos firewalls. "Guan Tianfeng is wanted for his alleged role in conspiring to access Sophos firewalls without authorization, cause damage to them, and retrieve and exfiltrate data from both the firewalls themselves and the computers behind these firewalls," the U.S. Federal Bureau of Investigation (FBI) said . "The exploit was used to infiltrate approximately 81,000 firewalls." The then-zero-day vulnerability in question is CVE-2020-12271 (CVSS score: 9.8), a severe S...
Ongoing Phishing and Malware Campaigns in December 2024

Ongoing Phishing and Malware Campaigns in December 2024

Dec 10, 2024 Malware Analysis / Cyber Threat
Cyber attackers never stop inventing new ways to compromise their targets. That's why organizations must stay updated on the latest threats.  Here's a quick rundown of the current malware and phishing attacks you need to know about to safeguard your infrastructure before they reach you. Zero-day Attack: Corrupted Malicious Files Evade Detection by Most Security Systems  The analyst team at ANY.RUN recently shared their analysis of an ongoing zero-day attack . It has been active since at least August and still remains unaddressed by most detection software to this day. The attack involves the use of intentionally corrupted Word documents and ZIP archives with malicious files inside. VirusTotal shows 0 detections for one of the corrupted files Due to corruption, security systems cannot properly identify the type of these files and run analysis on them, which results in zero threat detections. Word will ask the user if they want to restore a corrupted file Once these fi...
Critical Mitel MiCollab Flaw Exposes Systems to Unauthorized File and Admin Access

Critical Mitel MiCollab Flaw Exposes Systems to Unauthorized File and Admin Access

Dec 05, 2024 Vulnerability / IoT Security
Cybersecurity researchers have released a proof-of-concept (PoC) exploit that strings together a now-patched critical security flaw impacting Mitel MiCollab with an arbitrary file read zero-day, granting an attacker the ability to access files from susceptible instances. The critical vulnerability in question is CVE-2024-41713 (CVSS score: 9.8), which relates to a case of insufficient input validation in the NuPoint Unified Messaging (NPM) component of Mitel MiCollab that results in a path traversal attack. MiCollab is a software and hardware solution that integrates chat, voice, video, and SMS messaging with Microsoft Teams and other applications. NPM is a server-based voicemail system , which enables users to access their voice messages through various methods, including remotely or through the Microsoft Outlook client. WatchTowr Labs, in a report shared with The Hacker News, said it discovered CVE-2024-41713 as part of its efforts to reproduce CVE-2024-35286 (CVSS score: 9.8...
Hackers Use Corrupted ZIPs and Office Docs to Evade Antivirus and Email Defenses

Hackers Use Corrupted ZIPs and Office Docs to Evade Antivirus and Email Defenses

Dec 04, 2024 Email Security / Malware
Cybersecurity researchers have called attention to a novel phishing campaign that leverages corrupted Microsoft Office documents and ZIP archives as a way to bypass email defenses. "The ongoing attack evades #antivirus software, prevents uploads to sandboxes, and bypasses Outlook's spam filters, allowing the malicious emails to reach your inbox," ANY.RUN said in a series of posts on X. The malicious activity entails sending emails containing ZIP archives or Office attachments that are intentionally corrupted in such a way that they cannot be scanned by security tools. These messages aim to trick users into opening the attachments with false promises of employee benefits and bonuses. In other words, the corrupted state of the files means that they are not flagged as suspicious or malicious by email filters and antivirus software. However, the attack still works because it takes advantage of the built-in recovery mechanisms of programs like Word, Outlook, and WinRAR ...
RomCom Exploits Zero-Day Firefox and Windows Flaws in Sophisticated Cyberattacks

RomCom Exploits Zero-Day Firefox and Windows Flaws in Sophisticated Cyberattacks

Nov 26, 2024 Vulnerability / Cybercrime
The Russia-aligned threat actor known as RomCom has been linked to the zero-day exploitation of two security flaws, one in Mozilla Firefox and the other in Microsoft Windows, as part of attacks designed to deliver the eponymous backdoor on victim systems. "In a successful attack, if a victim browses a web page containing the exploit, an adversary can run arbitrary code – without any user interaction required (zero click) – which in this case led to the installation of RomCom's backdoor on the victim's computer," ESET said in a report shared with The Hacker News. The vulnerabilities in question are listed below - CVE-2024-9680 (CVSS score: 9.8) - A use-after-free vulnerability in Firefox's Animation component (Patched by Mozilla in October 2024)  CVE-2024-49039 (CVSS score: 8.8) - A privilege escalation vulnerability in Windows Task Scheduler (Patched by Microsoft in November 2024) RomCom , also known as Storm-0978, Tropical Scorpius, UAC-0180, UNC2596, and...
Warning: Over 2,000 Palo Alto Networks Devices Hacked in Ongoing Attack Campaign

Warning: Over 2,000 Palo Alto Networks Devices Hacked in Ongoing Attack Campaign

Nov 21, 2024 Vulnerability / Cyber Attack
As many as 2,000 Palo Alto Networks devices are estimated to have been compromised as part of a campaign abusing the newly disclosed security flaws that have come under active exploitation in the wild. According to statistics shared by the Shadowserver Foundation, a majority of the infections have been reported in the U.S. (554) and India (461), followed by Thailand (80), Mexico (48), Indonesia (43), Turkey (41), the U.K. (39), Peru (36), and South Africa (35). Earlier this week, Censys revealed that it had identified 13,324 publicly exposed next-generation firewall (NGFW) management interfaces, with 34% of these exposures located in the U.S. However, it's important to note that not all of these exposed hosts are necessarily vulnerable. The flaws in question , CVE-2024-0012 (CVSS score: 9.3) and CVE-2024-9474 (CVSS score: 6.9), are a combination of authentication bypass and privilege escalation that could allow a bad actor to perform malicious actions, including modifying c...
Ngioweb Botnet Fuels NSOCKS Residential Proxy Network Exploiting IoT Devices

Ngioweb Botnet Fuels NSOCKS Residential Proxy Network Exploiting IoT Devices

Nov 19, 2024 Botnet / IoT Security
The malware known as Ngioweb has been used to fuel a notorious residential proxy service called NSOCKS, as well as by other services such as VN5Socks and Shopsocks5, new findings from Lumen Technologies reveal. "At least 80% of NSOCKS bots in our telemetry originate from the Ngioweb botnet, mainly utilizing small office/home office (SOHO) routers and IoT devices," the Black Lotus Labs team at Lumen Technologies said in a report shared with The Hacker News. "Two-thirds of these proxies are based in the U.S." "The network maintains a daily average of roughly 35,000 working bots, with 40% remaining active for a month or longer." Ngioweb, first documented by Check Point way back in August 2018 in connection with a Ramnit trojan campaign that distributed the malware, has been the subject of extensive analyses in recent weeks by LevelBlue and Trend Micro , the latter of which is tracking the financially motivated threat actor behind the operation as Wate...
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