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A stealthy China-based group managed to establish a persistent foothold into critical infrastructure organizations in the U.S. and Guam without being detected,  Microsoft  and  the "Five Eyes" nations  said on Wednesday. The tech giant's threat intelligence team is tracking the activity, which includes post-compromise credential access and network system discovery, under the name  Volt Typhoon . The state-sponsored actor is  geared  towards espionage and information gathering, with the cluster active since June 2021 and obscuring its intrusion footprint by taking advantage of tools already installed or built into infected machines. Some of the prominent sectors targeted include communications, manufacturing, utility, transportation, construction, maritime, government, information technology, and education. The company further assessed with moderate confidence that the campaign is "pursuing development of capabilities that could disrupt critical communications i

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has warned of active exploitation of a medium-severity flaw affecting Samsung devices. The issue, tracked as  CVE-2023-21492  (CVSS score: 4.4), impacts select Samsung devices running Android versions 11, 12, and 13. The South Korean electronics giant described the issue as an information disclosure flaw that could be exploited by a privileged attacker to bypass address space layout randomization ( ASLR ) protections. ASLR is a  security technique  that's designed to thwart memory corruption and code execution flaws by obscuring the location of an executable in a device's memory. Samsung, in an  advisory  released this month, said it was "notified that an exploit for this issue had existed in the wild," adding it was privately disclosed to the company on January 17, 2023. Other details about how the flaw is being exploited are currently not known, but vulnerabilities in Samsung phones have been we

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U.S. cybersecurity and intelligence agencies have warned of attacks carried out by a threat actor known as the  Bl00dy Ransomware Gang  that attempt to exploit vulnerable PaperCut servers against the education facilities sector in the country. The attacks took place in early May 2023, the Federal Bureau of Investigation (FBI) and Cybersecurity and Infrastructure Security Agency (CISA) said in a joint cybersecurity advisory issued Thursday. "The Bl00dy Ransomware Gang gained access to victim networks across the Education Facilities Subsector where PaperCut servers vulnerable to  CVE-2023-27350  were exposed to the internet," the agencies  said . "Ultimately, some of these operations led to data exfiltration and encryption of victim systems. The Bl00dy Ransomware Gang left ransom notes on victim systems demanding payment in exchange for decryption of encrypted files." Additionally, the Bl00dy actors are said to have used TOR and other proxies from within victim

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday  released  an Industrial Control Systems (ICS) advisory about a critical flaw affecting ME RTU remote terminal units. The security vulnerability, tracked as  CVE-2023-2131 , has received the highest severity rating of 10.0 on the CVSS scoring system for its low attack complexity. "Successful exploitation of this vulnerability could allow remote code execution," CISA  said , describing it as a case of command injection affecting versions of INEA ME RTU firmware prior to  version 3.36 . Security researcher Floris Hendriks of Radboud University has been credited with reporting the issue to CISA. Also published by CISA is an  alert  related to multiple known security holes in Intel(R) processors impacting Factory Automation (FA) products from Mitsubishi Electric that could result in privilege escalation and a denial-of-service (DoS) condition. The development comes as the agency  recommended  criti

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  added  three flaws to the Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation. The security vulnerabilities are as follows - CVE-2023-1389  (CVSS score: 8.8) - TP-Link Archer AX-21 Command Injection Vulnerability CVE-2021-45046  (CVSS score: 9.0) - Apache Log4j2 Deserialization of Untrusted Data Vulnerability CVE-2023-21839  (CVSS score: 7.5) - Oracle WebLogic Server Unspecified Vulnerability CVE-2023-1389 concerns a case of command injection affecting TP-Link Archer AX-21 routers that could be exploited to achieve remote code execution. According to Trend Micro's Zero Day Initiative, the flaw has been  put to use  by threat actors associated with the Mirai botnet since April 11, 2023. The second flaw to be added to the KEV catalog is CVE-2021-45046, a remote code execution affecting the Apache Log4j2 logging library that  came to light  in December 2021. It's cu

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has released an Industrial Control Systems (ICS) medical advisory warning of a critical flaw impacting Illumina medical devices. The issues impact the Universal Copy Service (UCS) software in the Illumina MiSeqDx, NextSeq 550Dx, iScan, iSeq 100, MiniSeq, MiSeq, NextSeq 500, NextSeq 550, NextSeq 1000/2000, and NovaSeq 6000 DNA sequencing instruments. The most severe of the flaws, CVE-2023-1968 (CVSS score: 10.0), permits remote attackers to bind to exposed IP addresses, thereby making it possible to eavesdrop on network traffic and remotely transmit arbitrary commands. The second issue relates to a case of privilege misconfiguration (CVE-2023-1966, CVSS score: 7.4) that could enable a remote unauthenticated malicious actor to upload and execute code with elevated permissions. "Successful exploitation of these vulnerabilities could allow an attacker to take any action at the operating system level," CISA  sa

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added three security flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, based on evidence of active exploitation. The  three vulnerabilities  are as follows - CVE-2023-28432  (CVSS score - 7.5) - MinIO Information Disclosure Vulnerability  CVE-2023-27350  (CVSS score - 9.8) - PaperCut MF/NG Improper Access Control Vulnerability CVE-2023-2136  (CVSS score - TBD) - Google Chrome Skia Integer Overflow Vulnerability "In a cluster deployment, MinIO returns all environment variables, including MINIO_SECRET_KEY and MINIO_ROOT_PASSWORD, resulting in information disclosure," MinIO maintainers  said  in an advisory published on March 21, 2023. Data gathered by GreyNoise shows that as many as  18 unique malicious IP addresses  from the U.S., the Netherlands, France, Japan, and Finland have  attempted to exploit  the flaw over the past 30 days. The threat intelligence company, in an  alert  p

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  added  two vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation. The two flaws are listed below - CVE-2023-20963  (CVSS score: 7.8) - Android Framework Privilege Escalation Vulnerability CVE-2023-29492  (CVSS score: TBD) - Novi Survey Insecure Deserialization Vulnerability "Android Framework contains an unspecified vulnerability that allows for privilege escalation after updating an app to a higher Target SDK with no additional execution privileges needed," CISA  said  in an advisory for CVE-2023-20963. Google, in its monthly Android Security Bulletin for March 2023,  acknowledged  "there are indications that CVE-2023-20963 may be under limited, targeted exploitation." The development comes as tech news site Ars Technica  disclosed  late last month that Android apps digitally signed by China's e-commerce company Pinduoduo weap

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added  five security flaws  to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation in the wild. This includes three high-severity flaws in the Veritas Backup Exec Agent software (CVE-2021-27876, CVE-2021-27877, and CVE-2021-27878) that could lead to the execution of privileged commands on the underlying system. The flaws were  fixed  in a patch released by Veritas in March 2021. CVE-2021-27876  (CVSS score: 8.1) - Veritas Backup Exec Agent File Access Vulnerability CVE-2021-27877  (CVSS score: 8.2) - Veritas Backup Exec Agent Improper Authentication Vulnerability CVE-2021-27878  (CVSS score: 8.8) - Veritas Backup Exec Agent Command Execution Vulnerability Google-owned Mandiant, in a  report  published last week, revealed that an affiliate associated with the  BlackCat  (aka ALPHV and Noberus) ransomware operation is targeting publicly exposed Veritas Backup Exec in

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  published   eight  Industrial Control Systems (ICS) advisories warning of critical flaws affecting products from Hitachi Energy, mySCADA Technologies, Industrial Control Links, and Nexx. Topping the list is  CVE-2022-3682  (CVSS score: 9.9), impacting Hitachi Energy's MicroSCADA System Data Manager SDM600 that could allow an attacker to take remote control of the product. The flaw stems from an issue with file permission validation, thereby permitting an adversary to upload a specially crafted message to the system, leading to arbitrary code execution. Hitachi Energy has released SDM600 1.3.0.1339 to  mitigate  the issue for SDM600 versions prior to version 1.2 FP3 HF4 (Build Nr. 1.2.23000.291). Another set of five critical vulnerabilities –  CVE-2023-28400 ,  CVE-2023-28716 ,  CVE-2023-28384 ,  CVE-2023-29169 , and  CVE-2023-29150  (CVSS scores: 9.9) – relate to command injection bugs present in mySCADA my

Critical infrastructure attacks are a preferred target for cyber criminals. Here's why and what's being done to protect them. What is Critical Infrastructure and Why is It Attacked? Critical infrastructure is the physical and digital assets, systems and networks that are vital to national security, the economy, public health, or safety. It can be government- or privately-owned. According to Etay Maor, Senior Director Security Strategy at  Cato Networks , "It's interesting to note critical infrastructure doesn't necessarily have to be power plants or electricity. A nation's monetary system or even a global monetary system can be and should be considered a critical infrastructure as well." These qualities make critical infrastructure a preferred target for cyber attacks. If critical infrastructure is disrupted, the impact is significant. In some cases, such cyber attacks on critical infrastructure have become another means of modern warfare. But unlike

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has released eight Industrial Control Systems (ICS)  advisories  on Tuesday, warning of critical flaws affecting equipment from Delta Electronics and Rockwell Automation. This includes 13 security vulnerabilities in Delta Electronics' InfraSuite Device Master, a real-time device monitoring software. All versions prior to 1.0.5 are affected by the issues. "Successful exploitation of these vulnerabilities could allow an unauthenticated attacker to obtain access to files and credentials, escalate privileges, and remotely execute arbitrary code," CISA  said . At the top of the list is  CVE-2023-1133  (CVSS score: 9.8), a critical flaw that arises from the fact that InfraSuite Device Master accepts unverified UDP packets and  deserializes the content , thereby allowing an unauthenticated remote attacker to execute arbitrary code. Two other deserialization flaws,  CVE-2023-1139  (CVSS score: 8.8) and  CVE-20

Multiple threat actors, including a nation-state group, exploited a critical three-year-old security flaw in Progress Telerik to break into an unnamed federal entity in the U.S. The  disclosure  comes from a  joint advisory  issued by the Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI), and Multi-State Information Sharing and Analysis Center (MS-ISAC). "Exploitation of this vulnerability allowed malicious actors to successfully execute remote code on a federal civilian executive branch (FCEB) agency's Microsoft Internet Information Services (IIS) web server," the agencies  said . The indicators of compromise (IoCs) associated with the digital break-in were identified from November 2022 through early January 2023. Tracked as  CVE-2019-18935  (CVSS score: 9.8), the issue relates to a .NET  deserialization vulnerability  affecting Progress Telerik UI for ASP.NET AJAX that, if left unpatched, could  lead to remote code exec

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on March 15  added  a security vulnerability impacting Adobe ColdFusion to its Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation. The critical flaw in question is  CVE-2023-26360  (CVSS score: 8.6), which could be exploited by a threat actor to achieve arbitrary code execution. "Adobe ColdFusion contains an improper access control vulnerability that allows for remote code execution," CISA  said . The vulnerability impacts ColdFusion 2018 (Update 15 and earlier versions) and ColdFusion 2021 (Update 5 and earlier versions). It has been addressed in versions Update 16 and Update 6, respectively, released on March 14, 2023. It's worth noting that CVE-2023-26360 also affects ColdFusion 2016 and ColdFusion 11 installations, both of which are no longer supported by the software company as they have  reached  end-of-life (EoL). While the exact details surrounding the natu

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  added  three security flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The list of vulnerabilities is below - CVE-2022-35914  (CVSS score: 9.8) - Teclib GLPI Remote Code Execution Vulnerability CVE-2022-33891  (CVSS score: 8.8) - Apache Spark Command Injection Vulnerability CVE-2022-28810  (CVSS score: 6.8) - Zoho ManageEngine ADSelfService Plus Remote Code Execution Vulnerability The most critical of the three is  CVE-2022-35914 , which concerns a remote code execution vulnerability in the third-party library htmlawed present in  Teclib GLPI , an open source asset and IT management software package. The exact specifics surrounding the nature of attacks are unknown, but the Shadowserver Foundation in October 2022  noted  that it has seen exploitation attempts against its honeypots. Since then, a cURL-based one-line proof of concept (PoC) has been made a

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  released  a new advisory about  Royal ransomware , which emerged in the threat landscape last year. "After gaining access to victims' networks, Royal actors disable antivirus software and exfiltrate large amounts of data before ultimately deploying the ransomware and encrypting the systems," CISA  said . The custom  ransomware program , which has targeted U.S. and international organizations since September 2022, is believed to have evolved from earlier iterations that were dubbed Zeon.  What's more, it's said to be  operated  by seasoned threat actors who used to be part of Conti Team One, cybersecurity company Trend Micro disclosed in December 2022. The ransomware group employs call back phishing as a means of delivering their ransomware to victims, a technique  widely adopted  by criminal groups that splintered from the Conti enterprise last year following its shutdown. Other modes of

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  added  a high-severity flaw affecting the ZK Framework to its Known Exploited Vulnerabilities (KEV) catalog based on evidence of active exploitation. Tracked as  CVE-2022-36537  (CVSS score: 7.5), the issue impacts ZK Framework versions 9.6.1, 9.6.0.1, 9.5.1.3, 9.0.1.2, and 8.6.4.1, and allows threat actors to retrieve sensitive information via specially crafted requests. "The ZK Framework is an open source Java framework," CISA  said . "This vulnerability can impact multiple products, including but not limited to ConnectWise R1Soft Server Backup Manager." The  vulnerability  was patched in May 2022 in versions 9.6.2, 9.6.0.2, 9.5.1.4, 9.0.1.3, and 8.6.4.2. As  demonstrated  by Huntress in a proof-of-concept (PoC) in October 2022, the vulnerability can be weaponized to bypass authentication, upload a backdoored JDBC database driver to gain code execution, and deploy ransomware on susceptible

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is urging organizations and individuals to increase their cyber vigilance, as Russia's military invasion of Ukraine officially  enters one year . "CISA assesses that the United States and European nations may experience disruptive and defacement attacks against websites in an attempt to sow chaos and societal discord on February 24, 2023, the anniversary of Russia's 2022 invasion of Ukraine," the agency  said . To that end, CISA is  recommending  that organizations implement cybersecurity best practices, increase preparedness, and take proactive steps to reduce the likelihood and impact of distributed denial-of-service (DDoS) attacks. The advisory comes as the Computer Emergency Response Team of Ukraine (CERT-UA)  revealed  that Russian nation-state hackers breached  government websites  and planted backdoors as far back as December 2021. CERT-UA attributed the activity to a  threat actor  it track

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday  added  three security flaws to its Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation. The list of shortcomings is as follows - CVE-2022-47986  (CVSS score: 9.8) - IBM Aspera Faspex Code Execution Vulnerability CVE-2022-41223  (CVSS score: 6.8) - Mitel MiVoice Connect Code Injection Vulnerability CVE-2022-40765  (CVSS score: 6.8) - Mitel MiVoice Connect Command Injection Vulnerability CVE-2022-47986 is described as a YAML deserialization flaw in the file transfer solution that could allow a remote attacker to execute code on the system. Details of the flaw and a proof-of-concept (PoC) were  shared  by Assetnote on February 2, a day after which the Shadowserver Foundation  said  it "picked up exploitation attempts" in the wild. The active exploitation of the Aspera Faspex flaw comes shortly after a vulnerability in Fortra's GoAnywhere MFT-managed fil

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday  added  three flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active abuse in the wild. Included among the three is  CVE-2022-24990 , a bug affecting TerraMaster network-attached storage (TNAS) devices that could lead to unauthenticated remote code execution with the highest privileges. Details about the flaw were  disclosed  by Ethiopian cyber security research firm Octagon Networks in March 2022. The vulnerability, according to a  joint advisory  released by U.S. and South Korean government authorities, is said to have been weaponized by North Korean nation-state hackers to strike healthcare and critical infrastructure entities with ransomware. The second shortcoming to be added to KEV catalog is  CVE-2015-2291 , an unspecified flaw in the Intel ethernet diagnostics driver for Windows (IQVW32.sys and IQVW64.sys) that could throw an affected device into a denial-of-service