CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2024-23222 Apple Multiple Products Type Confusion Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose...

Citrix Releases Security Updates for NetScaler ADC and NetScaler Gateway

Citrix released security updates to address vulnerabilities CVE-2023-6548 and CVE-2023-6549 in NetScaler ADC and NetScaler Gateway. A cyber threat actor could exploit one of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Citrix...

Atlassian Releases Security Advisory for Confluence Data Center and Server

Atlassian released a security advisory to address a vulnerability CVE-2023-22518 affecting Confluence Data Center and Server. A cyber actor could exploit this vulnerability to obtain sensitive information. CISA encourages users and administrators to review CVE-2023-22518 - Improper Authorization...

CISA Releases Guidance for Addressing Cisco IOS XE Web UI Vulnerabilities

Today, CISA, in response to active, widespread exploitation, released guidance addressing two vulnerabilities, CVE-2023-20198 and CVE-2023-20273, affecting Cisco’s Internetworking Operating System IOS XE Software Web User Interface UI. An unauthenticated remote actor could exploit these...

CISA Releases Two Industrial Control Systems Advisories

CISA released two Industrial Control Systems ICS advisories on May 9, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-129-02 Hitachi Energy MSM ICSA-21-334-02 Mitsubishi MELSEC and MELIPC Series Update F CISA...

CISA Releases Four Industrial Control Systems Advisories

CISA released four Industrial Control Systems ICS advisories on January 17, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisories for...

CISA Releases Twelve Industrial Control Systems Advisories

CISA released twelve Industrial Control Systems ICS advisories on January 12, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisories for...

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 take control of an affected system. CISA encourages users and administrators to review Juniper Networks’ security advisories page and...

Fortinet Releases Security Updates for FortiADC

Fortinet has released a security advisory to address a vulnerability in multiple versions of FortiADC. This vulnerability may allow a remote attacker “to execute unauthorized code or commands via specifically crafted HTTP requests.” CISA encourages users and administrators to review Fortinet...

CISA Releases Twenty Industrial Control Systems Advisories

CISA has released twenty 20 Industrial Control Systems ICS advisories on November 10, 2022. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisorie...

CISA Releases RedEye: Red Team Campaign Visualization and Reporting Tool

CISA has released RedEye, an interactive open-source analytic tool to visualize and report Red Team command and control activities. RedEye allows an operator to quickly assess complex data, evaluate mitigation strategies, and enable effective decision making. For more information, CISA encourages...

Palo Alto Networks Releases Security Update for PAN-OS

Palo Alto Networks has released a security update to address a vulnerability in PAN-OS firewall configurations. A remote attacker could exploit this vulnerability to conduct a reflected denial-of service. CISA encourages users and administrators to review the Palo Alto Networks Security Advisory...

CISA Updates Advisory on Cyber Actors Continued Exploitation of Log4Shell in VMware Horizon Systems

CISA has updated the joint CISA-United States Coast Guard Cyber Command CGCYBER Cybersecurity Advisory AA22-174A: Malicious Cyber Actors Continue to Exploit Log4Shell in VMware Horizon, originally released June 23, 2022. The advisory now includes IOCs provided in Malware Analysis Report...

Weak Security Controls and Practices Routinely Exploited for Initial Access

The cybersecurity authorities of the United States, Canada, New Zealand, the Netherlands, and the United Kingdom have issued a joint Cybersecurity Advisory CSA on 10 routinely exploited weak security controls, poor configurations, and bad practices that allow malicious actors to compromise...

VMware Releases Security Updates

VMware has released security updates to address multiple vulnerabilities in VMware Carbon Black App Control software. A remote attacker could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review VMware Security Advisory...

NCSC Releases 2021 Annual Review

The United Kingdom UK National Cyber Security Centre NCSC has released its Annual Review 2021, which focuses on its response to evolving and challenging cyber threats. The publication contains highlights of NCSC’s collaboration with trusted cybersecurity partners, including CISA. Examples include...

Cisco Releases Security Updates for Multiple Products

Cisco has released security updates to address vulnerabilities in multiple Cisco products. An 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...

NSA Releases Guidance on Avoiding the Dangers of Wildcard TLS Certificates and ALPACA Techniques

The National Security Agency NSA has released a Cybersecurity Information CSI sheet with guidance to help secure the Department of Defense, National Security Systems, and Defense Industrial Base organizations from poorly implemented wildcard Transport Layer Security TLS certificates and the...

Drupal Releases Security Updates

Drupal has released security updates to address a vulnerability affecting Drupal 8.9, 9.0, and 9.1. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review Drupal Advisory SA-CORE-2021-003 and apply the necessary updat...

Cisco Releases Security Updates for Multiple Products  

Cisco has released security updates to address vulnerabilities in multiple 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...

Joint CISA-FBI Cybersecurity Advisory on DarkSide Ransomware

CISA and the Federal Bureau of Investigation FBI have released a Joint Cybersecurity Advisory CSA on a ransomware-as-a-service RaaS variant—referred to as DarkSide—recently used in a ransomware attack against a critical infrastructure CI company. Cybercriminal groups use DarkSide to gain access t...

Exim Releases Security Update

Exim has released a security update to address multiple vulnerabilities in Exim versions prior to 4.94.2. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Exim 4.94.2 update page and apply t...

Apple Releases Security Updates

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...

CISA Malware Analysis on Supernova

CISA has released a malware analysis report on Supernova malware affecting unpatched SolarWinds Orion software. The report contains indicators of compromise IOCs and analyzes several malicious artifacts. Supernova is not part of the SolarWinds supply chain attack described in Alert AA20-352A. CIS...

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...

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

Mozilla has released security updates to address a vulnerability in Firefox, Firefox ESR, and Thunderbird. An attacker could exploit this vulnerability to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review th...

North Korean Malicious Cyber Activity: FASTCash

The Cybersecurity Security and Infrastructure Security Agency CISA, the Department of the Treasury, the Federal Bureau of Investigation, and U.S. Cyber Command have released a joint Technical Alert and three Malware Analysis Reports MARs on the North Korean government’s ATM cash-out scheme—referr...

ACSC Releases Cyber Criminal and APT Tradecraft Trends for 2019-2020

The Australian Cyber Security Centre ACSC has released a summary of trends for 2019-2020 outlining tactics, techniques, and procedures TTPs used by cyber criminals and advanced persistent threat APT groups to target Australian networks. ACSC uses the MITRE Adversarial Tactics, Techniques, and...

Adobe Releases Security Updates

Adobe has released security updates to address vulnerabilities in multiple products. An attacker could exploit these vulnerabilities to obtain sensitive information. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review the following Adobe Securit...

VMware Releases Security Updates for VMware Directory Service

VMware has released security updates to address a vulnerability in VMware Directory Service vmdir. An attacker could exploit this vulnerability to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review VMware...

FBI Releases Guidance on Defending Against VTC Hijacking and Zoom-bombing

The Federal Bureau of Investigation FBI has released an article on defending against video-teleconferencing VTC hijacking referred to as “Zoom-bombing” when attacks are to the Zoom VTC platform. Many organizations and individuals are increasingly dependent on VTC platforms, such as Zoom and...

New CWE List of Common Security Weaknesses

MITRE has released version 4.0 of the community-developed Common Weakness Enumeration CWE list. Previous CWE list versions describe common software security weaknesses. With version 4.0, the CWE list expands to include hardware security weaknesses. Additionally, version 4.0 simplifies the...

Reminder: CISA Publishes Weekly Vulnerability Summaries

Did you know that the Cybersecurity and Infrastructure Security Agency CISA publishes a weekly Vulnerability Bulletin? This recurring item provides a summary of all new vulnerabilities that have been recorded by the CISA-sponsored National Institute of Standards and Technology NIST National...

Cisco Releases Security Updates

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 webpage. The Cybersecurity...

MS-ISAC Releases EOS Software Report List

The Multi-State Information Sharing and Analysis Center MS-ISAC has released an end-of-support EOS software report list. Software that has reached its EOS date no longer receives security updates and patches from the vendor and is, therefore, susceptible to exploitation from security...

NIST Publishes Multifactor Authentication Practice Guide

The National Institute of Standards and Technology NIST National Cybersecurity Center of Excellence NCCoE has published NIST Cybersecurity Practice Guide: Multifactor Authentication for E-Commerce. The guide provides e-commerce organizations multifactor authentication MFA protection methods they...

DHS Email Phishing Scam

The Cybersecurity and Infrastructure Security Agency CISA is aware of an email phishing scam that tricks users into clicking on malicious attachments that look like legitimate Department of Homeland Security DHS notifications. The email campaign uses a spoofed email address to appear like a...

ICSJWG Spring Meeting April 23–25

The Industrial Control Systems Joint Working Group ICSJWG—a collaborative and coordinating body operating under the Critical Infrastructure Partnership Advisory Council framework—will hold the 2019 ICSJWG Spring Meeting in Kansas City, MO, April 23–25, 2019. ICSJWG facilitates information sharing...

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 2.3 to 2.3.34 and 2.5 to 2.5.16. A remote attacker could exploit this vulnerability to take control of an affected system. NCCIC encourages users and administrators to review Apache...

Tragedy-Related Scams

In the wake of the recent Texas school shooting, NCCIC advises users to watch out for possible malicious cyber activity seeking to capitalize on this tragic event. Users should exercise caution in handling emails related to the shooting, even if they appear to originate from trusted sources...

Russian Malicious Cyber Activity

The Department of Homeland Security DHS, Federal Bureau of Investigation FBI, and the United Kingdom’s UK National Cyber Security Centre NCSC released a joint Technical Alert TA about malicious cyber activity carried out by the Russian Government. The U.S. Government refers to malicious cyber...

Data Privacy Day

January 28 is Data Privacy Day DPD, an annual international effort to promote the importance of data privacy. DPD is sponsored in the United States by the National Cyber Security Alliance NCSA with the theme, Respecting Privacy, Safeguarding Data, and Enabling Trust. The NCSA Stay Safe Online...

Intel Firmware Vulnerability

Intel has released recommendations to address vulnerabilities in the firmware of the following Intel products: Management Engine, Server Platform Services, and Trusted Execution Engine. An attacker could exploit some of these vulnerabilities to take control of an affected system. US-CERT encourag...

Mozilla Releases Security Updates

Mozilla has released security updates to address multiple vulnerabilities in Firefox and Firefox ESR. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. Available updates include: Firefox 50 Firefox ESR 45.5 Users and administrators are encouraged...

Cisco Releases Security Updates

Cisco has released security updates to address vulnerabilities in several products. Exploitation of some of these vulnerabilities could allow an unauthenticated remote attacker to take control of an affected system. Users and administrators are encouraged to review the following Cisco Security...

Cisco Releases Security Update

Cisco has released a security update to address a vulnerability in its Unified Computing System UCS Performance Manager. Exploitation of this vulnerability could allow an authenticated remote attacker to take control of an affected system. Users and administrators are encouraged to review the Cis...

Adobe Releases Updates for Flash Player

Adobe has released security updates to address multiple vulnerabilities in Flash Player. Exploitation of some of these vulnerabilities may allow a remote attacker to take control of an affected system. Users and administrators are encouraged to review Adobe Security Bulletin APSB16-10 and apply t...

Microsoft Releases September 2015 Security Bulletin

Microsoft has released 12 updates to address vulnerabilities in Microsoft Windows. Exploitation of some of these vulnerabilities could allow an attacker to take control of an affected system. US-CERT encourages users and administrators to review Microsoft Security Bulletins MS15-094 through...

Affordable Care Act Phishing Campaign

US-CERT is aware of a phishing campaign purporting to come from a U.S. Federal Government Agency. The phishing emails reference the Affordable Care Act in the subject and claim to direct users to health coverage information, but instead direct them to sites which attempt to elicit private...

Google Releases Security Updates for Chrome and Chrome OS

Google has released security updates to address multiple vulnerabilities in Chrome and Chrome OS, one of which could potentially allow an attacker to take control of the affected system. Updates available include: Chrome 38.0.2125.104 for Windows, Mac and Linux Chrome OS 38.0.2125.108 for all...