Current Security Issues, Vulnerabilities, and Exploits
Current CISA Security Alerts
- ISC Releases Security Advisory for BINDon May 19, 2022
Original release date: May 19, 2022The Internet Systems Consortium (ISC) has released a security advisory that addresses a vulnerability affecting version 9.18.0 of ISC Berkeley Internet Name Domain (BIND). A remote attacker could exploit this vulnerability to cause a denial-of-service condition. CISA encourages users and administrators to review the ISC advisory for CVE-2022-1183 and apply the necessary update. This product is provided subject to this Notification and this Privacy & Use policy.
- CISA Releases Analysis of FY21 Risk and Vulnerability Assessmentson May 19, 2022
Original release date: May 19, 2022CISA has released an analysis and infographic detailing the findings from the 112 Risk and Vulnerability Assessments (RVAs) conducted across multiple sectors in Fiscal Year 2021 (FY21). The analysis details a sample attack path comprising 11 successive tactics, or steps, a cyber threat actor could take to compromise an organization with weaknesses that are representative of those CISA observed in FY21 RVAs. The infographic highlights the three most successful techniques for each tactic that the RVAs documented. Both the analysis and the infographic map threat actor behavior to the MITRE ATT&CK® framework. CISA encourages network defenders to review the analysis and infographic and apply the recommended mitigations to protect against the observed tactics and techniques. For information on CISA RVAs and additional services, visit the CISA Cyber Resource Hub. This product is provided subject to this Notification and this Privacy & Use policy.
- CISA Issues Emergency Directive and Releases Advisory Related to VMware Vulnerabilitieson May 18, 2022
Original release date: May 18, 2022CISA has issued Emergency Directive (ED) 22-03 and released a Cybersecurity Advisory (CSA) in response to active and expected exploitation of multiple vulnerabilities in the following VMware products: VMware Workspace ONE Access (Access), VMware Identity Manager (vIDM), VMware vRealize Automation (vRA), VMware Cloud Foundation, vRealize Suite Lifecycle Manager. The CSA, AA22-138B: Threat Actors Chaining Unpatched VMware Vulnerabilities for Full System Control, provides indicators of compromise and detection signatures from CISA as well as trusted third parties to assist administrators with detecting and responding to active exploitation of CVE-2022-22954 and CVE-2022-22960. Malicious cyber actors were able to reverse engineer the vendor updates to develop an exploit within 48 hours and quickly began exploiting these disclosed vulnerabilities in unpatched devices. Based on this activity, CISA expects malicious cyber actors to quickly develop a capability to exploit CVE-2022-22972 and CVE-2022-22973, which were disclosed by VMware on May 18, 2022. ED 22-03 directs all Federal Civilian Executive Branch agencies to enumerate all instances of affected VMware products and either deploy updates provided in VMware Security Advisory VMSA-2022-0014, released May 18, 2022, or remove those instances from agency networks. CISA strongly encourages all organizations to deploy updates provided in VMware Security Advisory VMSA-2022-0014 or remove those instances from networks. CISA also encourages organizations with affected VMware products that are accessible from the internet to assume compromise and initiate threat hunting activities using the detection methods provided in the CSA. If potential compromise is detected, administrators should apply the incident response recommendations included in the CSA. This product is provided subject to this Notification and this Privacy & Use policy.
- Threat Actors Exploiting F5 BIG IP CVE-2022-1388on May 18, 2022
Original release date: May 18, 2022CISA and the Multi-State Information Sharing and Analysis Center (MS-ISAC) have released the joint Cybersecurity Advisory Threat Actors Exploiting F5 BIG-IP CVE-2022-1388 in response to active exploitation of CVE-2022-1388, which affects F5 Networks BIG-IP devices. The vulnerability allows an unauthenticated actor to gain control of affected systems via the management port or self-IP addresses. CISA encourages users and administrators to review the joint advisory for detection methods and mitigations, which include updating F5 BIG-IP software, or, if unable to immediately update, applying temporary workarounds. This product is provided subject to this Notification and this Privacy & Use policy.
- Apple Releases Security Updates for Multiple Productson May 17, 2022
Original release date: May 17, 2022Apple 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. Note: Apple notes they are aware of a report that states CVE-2022-22675 may have been actively exploited. CVE-2022-22675 affects watchOS, tvOS, and macOS Big Sur. CISA encourages users and administrators to review the Apple security pages for the following products and apply the necessary updates. watchOS 8.6 tvOS 15.3 macOS Catalina macOS Big Sur 11.6.6 macOS Monterey 12.4 iOS 15.5 and iPad OS 15.5 Xcode 13.4 This product is provided subject to this Notification and this Privacy & Use policy.
- Weak Security Controls and Practices Routinely Exploited for Initial Accesson May 17, 2022
Original release date: May 17, 2022The 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 networks. While these poor practices may be common, organizations can apply basic practices, such as the following, to help protect their systems: Control access. Harden credentials. Establish centralized log management. Use antivirus solutions. Employ detection tools. Operate services exposed on internet-accessible hosts with secure configurations. Keep software updated. CISA encourages organizations to review Weak Security Controls and Practices Routinely Exploited for Initial Access and apply the recommended mitigations. This product is provided subject to this Notification and this Privacy & Use policy.
- CISA Adds Two Known Exploited Vulnerabilities to Catalogon May 16, 2022
Original release date: May 16, 2022CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risk to the federal enterprise. Note: to view the newly added vulnerabilities in the catalog, click on the arrow on the of the "Date Added to Catalog" column, which will sort by descending dates. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a living list of known CVEs that carry significant risk to the federal enterprise. BOD 22-01 requires FCEB agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the Catalog that meet the meet the specified criteria. This product is provided subject to this Notification and this Privacy & Use policy.