I'm running MacOS Monterey. Several times in the last few weeks, I've noticed the orange dot indicating the microphone is being used by an app, and I click on the Control Center and see that Zoom is accessing the microphone. I'm not in a meeting and simply have the Zoom app open. Why would Zoom be accessing the microphone when I'm not in a meeting?
PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
The Qualys Research Team has discovered a memory corruption vulnerability in polkit's pkexec, a SUID-root program that is installed by default on every major…
Google Project Zero: Vendors are now quicker at fixing zero-days
Google's Project Zero has published a report showing that organizations took less time to address the zero-day vulnerabilities that the team reported last year.
UPnProxy is alive and well. There are 277,000 devices, out of a pool of 3.5 million, running vulnerable implementations of UPnP. Of those, Akamai can confirm that more than 45,000 have been compromised in a widely distributed UPnP NAT injection campaign.
FritzFrog is a peer-to-peer botnet, which means its command and control server is not limited to a single, centralized machine, but rather can be done from every machine in its distributed network. In other words, every host running the malware process becomes part of the network, and is capable of sending, receiving, and executing the commands to control machines in the network.
CISA Adds One Known Exploited Vulnerability to Catalog
CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence that threat actors are actively exploiting the vulnerability listed in the table below. These types of vulnerabilities are a frequent attack vector for malicious cyber actors of all types and pose significant risk to the federal enterprise.
Ransomware gang’s new extortion trick? Calling the front desk
When a hacker called the company that his gang claimed to breach, he felt the same way that most of us feel when calling the front desk: frustrated. The phone call between the hacker, who claims to represent the ransomware gang DragonForce, and the victim company employee was posted by the ransomware gang on its dark web site in an apparent attempt to put pressure on the company to pay a ransom demand. In reality, the call recording just shows a somewhat hilarious and failed attempt to extort and intimidate a company’s rank-and-file employees.
Targus discloses cyberattack after hackers detected on file servers
Laptop and tablet accessories maker Targus disclosed that it suffered a cyberattack disrupting operations after a threat actor gained access to the company's file servers.
Roku says 576,000 user accounts hacked after second security incident
Streaming giant Roku has confirmed a second security incident in as many months, with hackers this time able to compromise more than half a million Roku user accounts. In a statement Friday, the company said about 576,000 user accounts were accessed using a technique known as credential stuffing, where malicious hackers use usernames and passwords stolen from other data breaches and reuse the logins on other sites.
Researchers discover new ransomware gang ‘Muliaka’ attacking Russian businesses
A previously unknown ransomware gang has been attacking Russian businesses with malware based on the leaked source code from the Conti hacking group. The gang, which researchers at the Moscow-based cybersecurity company F.A.C.C.T. have dubbed “Muliaka," or Muddy Water in English, has left minimal traces from its attacks but has likely been active since at least December 2023.
Zero-Day Exploitation of Unauthenticated Remote Code Execution Vulnerability in GlobalProtect (CVE-2024-3400)
On April 10, 2024, Volexity identified zero-day exploitation of a vulnerability found within the GlobalProtect feature of Palo Alto Networks PAN-OS at one of its network security monitoring (NSM) customers. Volexity received alerts regarding suspect network traffic emanating from the customer’s firewall. A subsequent investigation determined the device had been compromised. The following day, April 11, 2024, Volexity observed further, identical exploitation at another one of its NSM customers by the same threat actor.
Why CISA is Warning CISOs About a Breach at Sisense
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) said today it is investigating a breach at business intelligence company Sisense, whose products are designed to allow companies to view the status of multiple third-party online services in a single dashboard.…
The LockBit cybercriminal outfit appears to be planning a ransomware rebrand as the DarkVault, discovered after LockBit seemingly bungled the new website’s design.
Romania-linked ‘Rubycarp’ hackers look for cryptomining, phishing DDoS opportunities
Rubycarp has been in operation for at least a decade, and its campaigns appear to overlap with other cybercrime groups, according to researchers at Sysdig.
As the creator of the world’s first smart home cybersecurity hub, Bitdefender regularly audits popular IoT hardware for vulnerabilities. This research paper is part of a broader program that aims to shed light on the security of the world’s best-sellers in the IoT space. This report covers vulnerabilities discovered while researching the LG WebOS TV operating system.
A security issue has been identified in YubiKey Manager GUI which could lead to unexpected privilege escalation on Windows. If a user runs the YubiKey Manager GUI as Administrator, browser windows opened by YubiKey Manager GUI may be opened as Administrator which could be exploited by a local attacker to perform actions as Administrator. Under this circumstance, some browsers like Edge for example, have additional mitigations to prevent opening as Administrator.
SP 800-61 Rev. 3, Incident Response Recommendations and Considerations for Cybersecurity Risk Management: A CSF 2.0 Community Profile
Incident response is a critical part of cybersecurity risk management and should be integrated across organizational operations. The six Functions of the NIST Cybersecurity Framework (CSF) 2.0 all play vital roles in incident response. NIST is releasing the initial public draft of Special Publication (SP) 800-61r3 (Revision 3), Incident Response Recommendations and Considerations for Cybersecurity Risk Management: A CSF 2.0 Community Profile, for public comment. This publication seeks to assist organizations with incorporating cybersecurity incident response recommendations and considerations throughout their cybersecurity risk management activities, as described by CSF 2.0. Doing so can help organizations prepare for incident responses, reduce the number and impact of incidents that occur, and improve the efficiency and effectiveness of their incident detection, response, and recovery activities.
Microsoft employees exposed internal passwords in security lapse
Microsoft has resolved a security lapse that exposed internal company files and credentials to the open internet. Security researchers Can Yoleri, Murat Özfidan and Egemen Koçhisarlı with SOCRadar, a cybersecurity company that helps organizations find security weaknesses, discovered an open and public storage server hosted on Microsoft’s Azure cloud service that was storing internal information relating to Microsoft’s Bing search engine. The Azure storage server housed code, scripts and configuration files containing passwords, keys and credentials used by the Microsoft employees for accessing other internal databases and systems.
Unit 42 researchers have discovered that the Muddled Libra group now actively targets software-as-a-service (SaaS) applications and cloud service provider (CSP) environments. Organizations often store a variety of data in SaaS applications and use services from CSPs. The threat actors have begun attempting to leverage some of this data to assist with their attack progression, and to use for extortion when trying to monetize their work.
April’s Patch Tuesday Brings Record Number of Fixes
If only Patch Tuesdays came around infrequently — like total solar eclipse rare — instead of just creeping up on us each month like The Man in the Moon. Although to be fair, it would be tough for Microsoft to eclipse the number of vulnerabilities fixed in this month’s patch batch — a record 147 flaws in Windows and related software.
Critical Security Flaw Found in Popular LayerSlider WordPress Plugin
A critical security flaw impacting the LayerSlider plugin for WordPress could be abused to extract sensitive information from databases, such as password hashes. The flaw, designated as CVE-2024-2879, carries a CVSS score of 9.8 out of a maximum of 10.0. It has been described as a case of SQL injection impacting versions from 7.9.11 through 7.10.0. The issue has been addressed in version 7.10.1 released on March 27, 2024, following responsible disclosure on March 25. "This update includes important security fixes," the maintainers of LayerSlider said in their release notes. LayerSlider is a visual web content editor, a graphic design software, and a digital visual effects that allows users to create animations and rich content for their websites. According to its own site, the plugin is used by "millions of users worldwide."
