FBI-CISA-CGCYBER Advisory on APT Exploitation of ManageEngine ADSelfService Plus Vulnerability

The Federal Bureau of Investigation FBI, CISA, and Coast Guard Cyber Command CGCYBER have released a Joint Cybersecurity Advisory CSA detailing the active exploitation of an authentication bypass vulnerability CVE-2021-40539 in Zoho ManageEngine ADSelfService Plus—a self-service password manageme...

ACSC Releases Annual Cyber Threat Report

The Australian Cyber Security Centre ACSC has released its annual report on key cyber security threats and trends for the 2020–21 financial year. The report lists the exploitation of the pandemic environment, the disruption of essential services and critical infrastructure, ransomware, the rapid...

Drupal Releases Multiple Security Updates

Drupal has released security updates to address multiple vulnerabilities affecting Drupal 8.9, 9.1, and 9.2. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the following Drupal security advisories a...

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 Adobe’s Security Bulletins and apply the necessary updates...

Google Releases Security Updates for Chrome

Google has released Chrome version 93.0.4577.82 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 Note and apply the necessary updates. Thi...

Microsoft Releases September 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 September 2021 Security Update Summary and...

Citrix Releases Security Update for ShareFile Storage Zones Controller

Citrix has released a security update to address a vulnerability affecting Citrix ShareFile storage zones controller. A remote attacker can exploit this vulnerability to take control of an affected system. CISA recommends users and administrators review Citrix Security Bulletin CTX328123 and appl...

SAP Releases September 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 September 2021 and apply the...

CERT NZ Releases Ransomware Protection Guide for Businesses

The New Zealand Computer Emergency Response Team CERT NZ has released a guide on ransomware protection for businesses. The guide includes a pair of helpful diagrams that outline different ransomware attack pathways and illustrate where relevant security controls can work to protect or stop an...

CISA's Annual National Cybersecurity Summit

CISA will host its fourth annual National Cybersecurity Summit on Wednesdays during the month of October. The 2021 Summit will be held as a series of four virtual events bringing stakeholders together in a forum for meaningful conversation: Oct. 6 - Assembly Required: The Pieces of the...

Apple Releases Security Updates to Address CVE-2021-30858 and CVE-2021-30860

Apple has released security updates to address vulnerabilities—CVE-2021-30858 and CVE-2021-30860—in multiple products. An attacker could exploit these vulnerabilities to take control of an affected device. CISA is aware of public reporting that these vulnerabilities may have been exploited in the...

WordPress Releases Security Update

WordPress 5.4-5.8 are affected by multiple vulnerabilities. An attacker could exploit these vulnerabilities to take control of an affected website. CISA encourages users and administrators to review the WordPress Security and Maintenance Release and upgrade to WordPress 5.8.1. This product is...

Citrix Releases Security Updates for Hypervisor

Citrix has released security updates to address vulnerabilities in Hypervisor. An attacker could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review Citrix Security Update CTX325319 and apply the necessary updates. This product i...

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...

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...

Zoho Releases Security Update for ADSelfService Plus

Zoho has released a security update on a vulnerability CVE-2021-40539 affecting ManageEngine ADSelfService Plus builds 6113 and below. CVE-2021-40539 has been detected in exploits in the wild. A remote attacker could exploit this vulnerability to take control of an affected system. ManageEngine...

Microsoft Releases Mitigations and Workarounds for CVE-2021-40444

Microsoft has released mitigations and workarounds to address a remote code execution vulnerability CVE-2021-40444 in Microsoft Windows. Exploitation of this vulnerability may allow a remote attacker to take control of an affected system. This vulnerability has been detected in exploits in the...

Atlassian Releases Security Updates for Confluence Server and Data Center

On August 25, 2021, Atlassian released security updates to address a remote code execution vulnerability CVE-2021-26084 affecting Confluence Server and Data Center. Recently, CVE-2021-26084 has been detected in exploits in the wild. A remote attacker could exploit this vulnerability to take contr...

CISA Insights on Risk Considerations for Managed Service Provider Customers

CISA has released a new CISA Insights, Risk Considerations for Managed Service Provider Customers MSPs, which provides Managed Service Provider MSP customers a framework for reducing risk. This framework is designed for government and private sector organizations of all sizes, and it suggests...

Cisco Releases Security Updates for Cisco Enterprise NFVIS

Cisco has released security updates to address a critical vulnerability affecting Cisco Enterprise Network Function Virtualization Infrastructure Software NFVIS Release 4.5.1. A remote attacker could exploit this vulnerability to take control of an affected system. For updates addressing lower...

Google Releases Security Updates for Chrome

Google has released Chrome version 93.0.4577.63 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 Note and apply the necessary updates. Thi...

FBI-CISA Advisory on Ransomware Awareness for Holidays and Weekends

Today, the Federal Bureau of Investigation FBI and CISA released a Joint Cybersecurity Advisory CSA to urge organizations to ensure they protect themselves against ransomware attacks during holidays and weekends—when offices are normally closed. Although FBI and CISA do not currently have any...

CISA Adds Single-Factor Authentication to list of Bad Practices

Today, CISA added the use of single-factor authentication for remote or administrative access systems to our Bad Practices list of exceptionally risky cybersecurity practices. Single-factor authentication is a common low-security method of authentication. It only requires matching one factor—such...

FBI Releases Indicators of Compromise Associated with Hive Ransomware

The Federal Bureau of Investigation FBI has released a Flash report detailing indicators of compromise IOCs and tactics, techniques, and procedures TTPs associated with ransomware attacks by Hive, a likely Ransomware-as-a-Service organization consisting of a number of actors using multiple...

 ICSJWG 2021 Fall Virtual Meeting

The Industrial Control Systems Joint Working Group ICSJWG will hold the virtual 2021 ICSJWG Fall Meeting, September 21—22, 2021. ICSJWG meetings facilitate relationship building among critical infrastructure stakeholders and owners/operators of industrial control systems, idea exchange regarding...

Microsoft Azure Cosmos DB Guidance

CISA is aware of a misconfiguration vulnerability in Microsoft’s Azure Cosmos DB that may have exposed customer data. The misconfiguration has been fixed within the Azure cloud, and Microsoft has notified the customers who potentially would have been impacted. CISA strongly encourages those Azure...

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...

VMware Releases Security Updates for Multiple Products 

VMware 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 VMware Security Advisory VMSA-2021-0018 and apply the necessary...

FBI Releases Indicators of Compromise Associated with OnePercent Group Ransomware

The Federal Bureau of Investigation FBI has released a Flash report detailing indicators of compromise IOCs associated with ransomware attacks by the OnePercent Group, a cyber-criminal organization known since November 2020 for using Cobalt Strike in phishing attacks against U.S. companies. CISA...

OpenSSL Releases Security Update 

OpenSSL has released a security update to address vulnerabilities affecting versions 1.1.1k and below. An attacker could exploit these vulnerabilities to cause a denial-of-service condition. CISA encourages users and administrators to review the OpenSSL Security Advisory and apply the necessary...

F5 Releases August 2021 Security Advisory

F5 has released a security advisory on vulnerabilities affecting multiple versions of BIG-IP and BIG-IQ for August 2021. CISA encourages users and administrators to review the F5 security advisory and install updated software or apply the necessary mitigations as soon as possible. This product is...

CISA Releases Five Pulse Secure-Related MARs

As part of CISA’s ongoing response to Pulse Secure compromises, CISA has analyzed five malware samples related to exploited Pulse Secure devices. CISA encourages users and administrators to review the following five malware analysis reports MARs for threat actor tactics, techniques, and procedure...

Hurricane-Related Scams

CISA warns users to remain on alert for malicious cyber activity targeting potential disaster victims and charitable donors following a hurricane. Fraudulent emails—often containing malicious links or attachments—are common after major natural disasters. Exercise caution in handling emails with...

Urgent: Protect Against Active Exploitation of ProxyShell Vulnerabilities

Malicious cyber actors are actively exploiting the following ProxyShell vulnerabilities: CVE-2021-34473, CVE-2021-34523, and CVE-2021-31207. An attacker exploiting these vulnerabilities could execute arbitrary code on a vulnerable machine. CISA strongly urges organizations to identify vulnerable...

 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...

ISC Releases Security Advisory for BIND

The Internet Systems Consortium ISC has released a security advisory that addresses a vulnerability affecting multiple versions of the ISC Berkeley Internet Name Domain BIND. A remote attacker could exploit this vulnerability to cause a denial-of-service condition. CISA encourages users and...

Adobe Releases Multiple Security Updates

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...

Google Releases Security Updates for Chrome

Google has released Chrome version 92.0.4515.159 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 Note and apply the necessary updates. Th...

CISA Provides Recommendations for Protecting Information from Ransomware-Caused Data Breaches

CISA has released the fact sheet Protecting Sensitive and Personal Information from Ransomware-Caused Data Breaches to address the increase in malicious cyber actors using ransomware to exfiltrate data and then threatening to sell or leak the exfiltrated data if the victim does not pay the ransom...

Mozilla Releases Security Updates

Mozilla has released security updates to address vulnerabilities in Firefox 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 Advisory for Firefox 91.0.1 and...

Apple Releases Security Update

Apple has released a security update to address vulnerabilities in iCloud for Windows 12.5. An attacker could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Apple security update and apply the necessary updates. This...

BadAlloc Vulnerability Affecting Devices Incorporating Older BlackBerry QNX Products

CISA released an Alert today on devices incorporating older versions of multiple BlackBerry QNX products affected by a BadAlloc vulnerability. A malicious actor could exploit this vulnerability to take control of an affected system or cause a denial-of-service condition. Because devices...

CISA Releases Security Advisory for ThroughTek Kalay P2P SDK

CISA has released an Industrial Control Systems ICS advisory detailing a vulnerability affecting several versions of ThroughTek Kalay P2P Software Development Kit SDK. A remote attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrator...

Drupal Releases Security Updates

Drupal has released security updates to address vulnerabilities that could affect versions 8.9, 9.1, and 9.2. An attacker could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review Drupal Security Advisory SA-CORE-2021-005 and app...

Mozilla Releases Security Updates for Thunderbird

Mozilla has released security updates to address vulnerabilities in 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 Advisory for Thunderbird 91 and apply the necessa...

Intel Releases Multiple Security Updates

Intel has released security updates to address vulnerabilities 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 following Intel advisories and apply the necessary updates: NUC 9...

SAP Releases August 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 SAP Security Notes for August 2021 and apply the necessary...

Microsoft Releases August 2021 Security Updates

Updated: August 24, 2021 CISA is aware of open source reporting on the active exploitation of CVE-2021-36942 PetitPotam. To address this vulnerability, Microsoft released a patch and mitigation guidance as part of its August 2021 security updates. CISA strongly encourages users and administrators...

Mozilla Releases Security Updates for Firefox

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 Advisory for Firefox 91...

Citrix Releases Security Update for ShareFile Storage Zones Controller

Citrix has released a security update to address a vulnerability affecting Citrix ShareFile storage zones controller. An attacker can exploit this vulnerability to obtain access to sensitive information. CISA recommends users and administrators review Citrix Security Bulletin CTX322787 and apply...