Cyber Security Alerts & Threat Intelligence

Original release date: February 9, 2023 CISA, the National Security Agency (NSA), the Federal Bureau of Investigation (FBI), the Department of Health and Human Services (HHS), and Republic of Korea’s Defense Security Agency and National Intelligence Service have released a joint Cybersecurity Advisory (CSA), Ransomware Attacks on Critical Infrastructure Fund DPRK Espionage Activities, to provide information on ransomware activity used by North Korean state-sponsored cyber to target various critical infrastructure sectors, especially Healthcare and Public Health (HPH) Sector organizations. The authoring agencies urge network defenders to examine their current cybersecurity posture and apply the recommended mitigations in this joint CSA, which…

Original release date: February 9, 2023 OpenSSL has released a security advisory to address multiple vulnerabilities affecting OpenSSL versions 3.0.0, 2.2.2, and 1.0.2. An attacker could exploit some of these vulnerabilities to obtain sensitive information. CISA encourages users and administrators to review the OpenSSL advisory and make the necessary updates. This product is provided subject to this Notification and this Privacy & Use policy.

Original release date: February 8, 2023 Today, CISA and the Federal Bureau of Investigation (FBI) released a joint Cybersecurity Advisory, ESXiArgs Ransomware Virtual Machine Recovery Guidance. This advisory describes the ongoing ransomware campaign known as “ESXiArgs.” Malicious cyber actors may be exploiting known vulnerabilities in unpatched and out-of-service or out-of-date versions of VMware ESXi software to gain access to ESXi servers and deploy ESXiArgs ransomware. The ransomware encrypts configuration files on ESXi servers, potentially rendering virtual machines unusable. As detailed in the advisory, CISA has created and released an ESXiArgs recovery script at https://github.com/cisagov/ESXiArgs-Recover. CISA and FBI encourage organizations that…

Original release date: February 8, 2023 Summary The Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI) are releasing this joint Cybersecurity Advisory (CSA) in response to the ongoing ransomware campaign, known as “ESXiArgs.” Malicious actors may be exploiting known vulnerabilities in VMware ESXi servers that are likely running unpatched and out-of-service or out-of-date versions of VMware ESXi software to gain access and deploy ransomware. The ESXiArgs ransomware encrypts configuration files on ESXi servers, potentially rendering virtual machines (VMs) unusable.  CISA has released an ESXiArgs recovery script at github.com/cisagov/ESXiArgs-Recover. Organizations that have fallen victim to ESXiArgs…

Original release date: February 7, 2023 CISA has released a recovery script for organizations that have fallen victim to ESXiArgs ransomware. The ESXiArgs ransomware encrypts configuration files on vulnerable ESXi servers, potentially rendering virtual machines (VMs) unusable. CISA recommends organizations impacted by ESXiArgs evaluate the script and guidance provided in the accompanying README file to determine if it is fit for attempting to recover access to files in their environment. Organizations can access the recovery script here: https://github.com/cisagov/ESXiArgs-Recover This product is provided subject to this Notification and this Privacy & Use policy.

Original release date: February 7, 2023   High Vulnerabilities Primary Vendor — Product Description Published CVSS Score Source & Patch Info qnap — qts A vulnerability has been reported to affect QNAP device running QuTS hero, QTS. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of QuTS hero, QTS: QuTS hero h5.0.1.2248 build 20221215 and later QTS 5.0.1.2234 build 20221201 and later 2023-01-30 9.8 CVE-2022-27596 MISC changingtec — megaservisignadapter ChangingTech MegaServiSignAdapter component has a vulnerability of improper input validation. An unauthenticated remote attacker can exploit this vulnerability…

Original release date: February 2, 2023 Cisco released security updates for vulnerabilities affecting multiple products. A remote attacker could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Cisco Security Advisories page and apply the necessary updates. This product is provided subject to this Notification and this Privacy & Use policy.

Original release date: February 2, 2023 Drupal released a security update to address a vulnerability affecting the Apigee Edge module for Drupal 9.x. An attacker could exploit this vulnerability to bypass access authorization or disclose sensitive information. CISA encourages users and administrators to review Drupal’s security advisory SA-CONTRIB- 2023-005 and apply the necessary update. This product is provided subject to this Notification and this Privacy & Use policy.

Original release date: February 1, 2023 VMware released a security update that addresses a cross-site request forgery bypass vulnerability affecting VMware vRealize Operations. A malicious user could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review VMware Security Advisory VMSA-2023-0002 and apply the necessary updates. This product is provided subject to this Notification and this Privacy & Use policy.

Original release date: January 30, 2023 | Last revised: January 31, 2023   High Vulnerabilities Primary Vendor — Product Description Published CVSS Score Source & Patch Info adobe — acrobat_reader Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file. 2023-01-27 7.8 CVE-2023-22240 MISC adobe — acrobat_reader Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418…

Original release date: January 26, 2023 Today, the Joint Cyber Defense Collaborative (JCDC) announced its 2023 Planning Agenda. This release marks a major milestone in the continued evolution and maturation of the collaborative’s planning efforts. JCDC’s Planning Agenda brings together government and private sector partners to develop and execute cyber defense plans that achieve specific risk reduction goals focused on systemic risk, collective cyber response, and high-risk communities. Through this effort, CISA and partners across government and the private sector will take steps to measurably reduce some of the most significant cyber risks facing the global cyber community. This effort…

Original release date: January 25, 2023 Today, the Cybersecurity and Infrastructure Security Agency (CISA), the National Security Agency (NSA), and the Multi-State Information Sharing and Analysis Center (MS-ISAC) released joint Cybersecurity Advisory (CSA) Protecting Against Malicious Use of Remote Monitoring and Management Software. The advisory describes a phishing scam in which cyber threat actors maliciously use legitimate remote monitoring and management (RMM) software to steal money from victim bank accounts. CISA encourages network defenders to review the advisory for indicators of compromise, best practices, and recommended mitigations, which highlights the threat of additional types of malicious activity using RMM, including…