FTC Reports Scammers Impersonating FTC

The Federal Trade Commission FTC has released information on scammers attempting to impersonate the FTC. The scammers operate an FTC-spoofed website that claims to provide instant cash payments and tries to trick consumers into disclosing their financial information. The real FTC does not require...

Cisco Releases Advisories for Multiple Products

Cisco has released security updates to address vulnerabilities in multiple Cisco products. A remote attacker could exploit these vulnerabilities to take control of an affected system. For updates addressing lower severity vulnerabilities, see the Cisco Security Advisories page. CISA encourages...

Oracle Releases January 2021 Security Bulletin

Oracle has released its Critical Patch Update for January 2021 to address 329 vulnerabilities across multiple products. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Oracle January 2021...

Drupal Releases Security Updates

Drupal has released security updates to address a vulnerability affecting Drupal. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review Drupal Advisory SA-CORE-2021-001 and apply the necessary updates or mitigations...

Google Releases Security Updates for Chrome

Google has released Chrome version 88.0.4324.96 for Windows, Mac, and Linux. This version addresses vulnerabilities that an attacker could exploit to take control of an affected system. CISA encourages users and administrators to review the Chrome Release and apply the necessary updates. This...

CERT/CC and CISA Report Multiple Vulnerabilities in Dnsmasq

CISA and the CERT Coordination Center CERT/CC are aware of multiple vulnerabilities affecting Dnsmasq version 2.82 and prior. Dnsmasq is a widely-used, open-source software that provides Domain Name Service forwarding and caching and is common in Internet-of-Things IoT and other embedded devices....

NSA Releases Guidance on Encrypted DNS in Enterprise Environments  

The National Security Agency NSA has released an information sheet with guidance on adopting encrypted Domain Name System DNS over Hypertext Transfer Protocol over Transport Layer Security HTTPS, referred to as DNS over HTTPS DoH. When configured appropriately, strong enterprise DNS controls can...

Apache Releases Security Advisory for Tomcat

The Apache Software Foundation has released a security advisory to address a vulnerability affecting multiple versions of Apache Tomcat. An attacker could exploit this vulnerability to obtain sensitive information. CISA encourages users and administrators to review the Apache security advisory fo...

Cisco Releases Security Updates for Multiple Products

Cisco has released security updates to address vulnerabilities in Cisco products. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. For updates addressing lower severity vulnerabilities see the Cisco Security Advisories page. CISA encourages user...

Juniper Networks Releases Security Updates for Multiple Products

Juniper Networks has released security updates to address vulnerabilities affecting multiple products. An attacker could exploit some of these vulnerabilities to cause take control of an affected system. CISA encourages users and administrators to review the Juniper Networks security advisories...

RCE Vulnerability Affecting Microsoft Defender

Microsoft has released a security advisory to address a remote code execution vulnerability, CVE-2021-1647, in Microsoft Defender. A remote attacker can exploit this vulnerability to take control of an affected system. This vulnerability was detected in exploits in the wild. CISA encourages users...

Attackers Exploit Poor Cyber Hygiene to Compromise Cloud Security Environments

CISA is aware of several recent successful cyberattacks against various organizations’ cloud services. Threat actors used a variety of tactics and techniques, including phishing and brute force logins, to attempt to exploit weaknesses in cloud security practices. In response, CISA has released...

NSA Cybersecurity Directorate Releases 2020 Year in Review

The National Security Agency NSA Cybersecurity Directorate has released its 2020 Year in Review, outlining key milestones and mission outcomes achieved during NSA Cybersecurity’s first full year of existence. Highlights include NSA Cybersecurity’s contributions to the 2020 elections, Operation Wa...

Mozilla Releases Security Update for Thunderbird

Mozilla has released a security update to address a vulnerability in Thunderbird. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review the Mozilla Security Advisory for Thunderbird 78.6.1 and apply the necessary...

Adobe Releases Security Updates for Multiple Products

Adobe has released security updates to address vulnerabilities in multiple Adobe products. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the following Adobe Security Bulletins and apply the necessa...

Microsoft Releases January 2021 Security Updates

Microsoft has released updates to address multiple vulnerabilities in Microsoft software. A remote attacker can exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review Microsoft’s January 2021 Security Update Summary and...

SAP Releases January 2021 Security Updates

SAP has released security updates to address vulnerabilities affecting multiple products. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the SAP Security Notes for January 2021 and apply the necessa...

Microsoft Releases Security Updates for Edge

Microsoft has released a security update to address multiple vulnerabilities in Edge Chromium-based. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the latest entry for Microsoft Security Advisory...

MS-ISAC Releases Cybersecurity Advisory on Zyxel Firewalls and AP Controllers

The Multi-State Information Sharing and Analysis Center MS-ISAC has released an advisory on a vulnerability in Zyxel firewalls and AP controllers. A remote attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review the MS-IS...

CISA Releases New Alert on Post-Compromise Threat Activity in Microsoft Cloud Environments and Tools to Help Detect This Activity

CISA has evidence of post-compromise advanced persistent threat APT activity in the cloud environment. Specifically, CISA has seen an APT actor using compromised applications in a victim’s Microsoft 365 M365/Azure environment and using additional credentials and Application Programming Interface...

Mozilla Releases Security Updates for Firefox, Firefox for Android, and Firefox ESR

Mozilla has released security updates to address a vulnerability in Firefox, Firefox for Android, and Firefox ESR. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review the Mozilla Security Advisory and apply the...

Google Releases Security Updates for Chrome

Google has released Chrome version 87.0.4280.141 for Windows, Mac, and Linux. This version addresses vulnerabilities that an attacker could exploit to take control of an affected system. CISA encourages users and administrators to review the Chrome Release and apply the necessary updates. This...

CISA Updates Emergency Directive 21-01 Supplemental Guidance and Activity Alert on SolarWinds Orion Compromise

CISA has released Emergency Directive ED 21-01 Supplemental Guidance version 3: Mitigate SolarWinds Orion Code Compromise, providing guidance that supersedes Required Action 4 of ED 21-01 and Supplemental Guidance versions 1 and 2. Federal agencies without evidence of adversary follow-on activity...

NSA Releases Guidance on Eliminating Obsolete TLS Protocol Configurations

The National Security Agency NSA has released a Cybersecurity Information CSI sheet on eliminating obsolete Transport Layer Security TLS configurations. The information sheet identifies strategies to detect obsolete cipher suites and key exchange mechanisms, discusses recommended TLS...

CISA Releases Free Detection Tool for Azure/M365 Environment

CISA has created a free tool for detecting unusual and potentially malicious activity that threatens users and applications in an Azure/Microsoft O365 environment. The tool is intended for use by incident responders and is narrowly focused on activity that is endemic to the recent identity- and...

CISA Releases CISA Insights and Creates Webpage on Ongoing APT Cyber Activity

CISA is tracking a known compromise involving SolarWinds Orion products that are currently being exploited by a malicious actor. An advanced persistent threat APT actor is responsible for compromising the SolarWinds Orion software supply chain, as well as widespread abuse of commonly used...

CISA Updates Alert and Releases Supplemental Guidance on Emergency Directive for SolarWinds Orion Compromise

CISA has updated AA20-352A: Advanced Persistent Threat Compromise of Government Agencies, Critical Infrastructure, and Private Sector Organizations, originally released December 17. This update states that CISA has evidence of, and is currently investigating, initial access vectors in addition to...

NSA Releases Cybersecurity Advisory on Detecting Abuse of Authentication Mechanisms

The National Security Agency NSA has released a cybersecurity advisory on detecting abuse of authentication mechanisms. This advisory describes tactics, techniques, and procedures used by malicious cyber actors to access protected data in the cloud and provides guidance on defending against and...

Mozilla Releases Security Updates for Firefox, Firefox ESR, and Thunderbird

Mozilla has released security updates to address vulnerabilities in Firefox, Firefox ESR, and Thunderbird. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Mozilla Security Advisories for Firefox...

Apple Releases Security Updates for Multiple Products

Apple has released security updates to address vulnerabilities in multiple products. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Apple security pages for the following products and apply the...

Active Exploitation of SolarWinds Software

The Cybersecurity and Infrastructure Security Agency CISA is aware of active exploitation of SolarWinds Orion Platform software versions 2019.4 HF 5 through 2020.2.1 HF 1, released between March 2020 and June 2020. CISA encourages affected organizations to read the SolarWinds and FireEye advisori...

Cisco Releases Security Updates for Jabber Desktop and Mobile Client Software

Cisco has released security updates to address vulnerabilities in Jabber for Windows, Jabber for MacOS, and Jabber for mobile platforms. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA...

Adobe Releases Security Updates for Acrobat and Reader

Adobe has released security updates to address a vulnerability in Acrobat and Reader. An attacker could exploit this vulnerability to obtain sensitive information. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review Adobe Security Bulletin...

National Cyber Security Centre Cyber Awareness Campaign

The United Kingdom UK National Cyber Security Centre NCSC has launched a new cyber security campaign encouraging the public to adopt six behaviors to stay safe online. The six Cyber Aware behaviors recommended by the NSCS are: 1. Use a separate password for your email 2. Create strong passwords...

New ACSC Cybersecurity Campaign Begins by Focusing on Ransomware Threats

The Australian Cyber Security Centre ACSC has launched a new cyber security campaign encouraging all Australians to protect themselves against online threats. The initial focus of the campaign is ransomware threats, and the ACSC provides easy-to-follow security advice at cyber.gov.au to help...

CERT/CC Releases Information on Vulnerabilities Affecting Open-Source TCP/IP Stacks

The CERT Coordination Center CERT/CC has released information on 33 vulnerabilities, known as AMNESIA:33, affecting multiple embedded open-source Transmission Control Protocol/Internet Protocol TCP/IP stacks. A remote attacker could exploit some of these vulnerabilities to take control of an...

SAP Releases December 2020 Security Updates

SAP has released security updates to address vulnerabilities affecting multiple products. An attacker could exploit some of these vulnerabilities to take control of an affected system. These include a missing authentication check vulnerability affecting SAP NetWeaver AS JAVA P2P Cluster...

OpenSSL Releases Security Update

OpenSSL has released a security update to address a vulnerability affecting all versions of 1.0.2 and 1.1.1 released before version 1.1.1i. An attacker could exploit this vulnerability to cause a denial-of-service condition. The Cybersecurity and Infrastructure Security Agency CISA encourages use...

Microsoft Releases December 2020 Security Updates

Microsoft has released updates to address vulnerabilities in Microsoft software. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review Microsoft’s...

Adobe Releases Security Updates for Multiple Products

Adobe has released security updates to address vulnerabilities in multiple products. An attacker could exploit some of these vulnerabilities to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review the following...

Theft of FireEye Red Team Tools

FireEye has released a blog addressing unauthorized access to their Red Team’s tools by a highly sophisticated threat actor. Red Team tools are often used by cybersecurity organizations to evaluate the security posture of enterprise systems. Although the Cybersecurity and Infrastructure Security...

Apache Releases Security Update for Apache Struts 2

The Apache Software Foundation has released a security update to address a vulnerability in Apache Struts versions 2.0.0 to 2.5.25. A remote attacker could exploit this vulnerability to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users...

Cisco Releases Security Advisory for Vulnerability in AnyConnect Software

Cisco has released security updates to address vulnerabilities in AnyConnect Secure Mobility Client Software and Security Manager. An attacker could exploit these vulnerabilities to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and...

NSA Releases Advisory on Russian State-Sponsored Malicious Cyber Actors Exploiting CVE-2020-4006

The National Security Agency NSA has released a Cybersecurity Advisory on Russian state-sponsored actors exploiting CVE-2020-4006, a command-injection vulnerability in VMware Workspace One Access, Access Connector, Identity Manager, and Identity Manager Connector. The actors were found exploiting...

Google Releases Security Updates for Chrome

Google has released Chrome version 87.0.4280.88 for Windows, Mac, and Linux. This version addresses vulnerabilities that an attacker could exploit to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review the...

Apache Releases Security Advisory for Apache Tomcat

The Apache Software Foundation has released a security advisory to address a vulnerability in Apache Tomcat. An attacker could exploit this vulnerability to cause a denial-of-service condition. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review...

IBM Releases Report on Cyber Actors Targeting the COVID-19 Vaccine Supply Chain

IBM X-Force has released a report on malicious cyber actors targeting the COVID-19 cold chain—an integral part of delivering and storing a vaccine at safe temperatures. Impersonating a biomedical company, cyber actors are sending phishing and spearphishing emails to executives and global...

Apple Releases Security Updates for iCloud for Windows

Apple has released security updates to address vulnerabilities in iCloud for Windows. An attacker could exploit some of these vulnerabilities to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review the Apple...

NCSC Releases 2020 Annual Review

The United Kingdom UK National Cyber Security Centre NCSC has released its Annual Review 2020, which focuses on its response to evolving and challenging cyber threats. Recognizing cybersecurity as a “team sport,” the publication includes highlights of NCSC’s collaboration with many partners,...

VMware Releases Security Updates to Address CVE-2020-4006

VMware has released security updates to address a vulnerability—CVE-2020-4006—in VMware Workspace One Access, Access Connector, Identity Manager, and Identity Manager Connector. An attacker could exploit this vulnerability to take control of an affected system. The Cybersecurity and Infrastructur...