Juniper Networks has released security updates to address vulnerabilities affecting Junos OS, Paragon Active Assurance (PAA), and Juniper Secure Analytics (JSA) Series. 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 apply the necessary updates.

Shifting the Balance of Cybersecurity Risk: Security-by-Design and Default Principles serves as a cybersecurity roadmap for manufacturers of technology and associated products. With recommendations in this guide, manufacturers are urged to put cybersecurity first, during the design phase of a product’s development lifecycle, to decrease user risk and provide out-of-the-box user protections by default at no extra charge. 

This guide represents an international effort to reduce exploitable vulnerabilities in technology used by the government and private sector organizations. The authoring agencies are CISA, Federal Bureau of Investigation, National Security Agency, Australian Cyber Security Centre, Canadian Centre for Cyber Security, New Zealand’s Computer Emergency Response Team, United Kingdom’s National Cyber Security Centre, Germany’s Federal Office for Information Security (BSI), and the Netherlands’ National Cyber Security Centre. The authoring agencies recognize the contributions by many private sector partners in advancing Security-by-Design and -Default.

For more information on the importance of product security, see CISA’s blog article The Cost of Unsafe Technology and What We Can Do About It.

Microsoft has released Guidance for investigating attacks using CVE-2022-21894: The BlackLotus Campaign. According to Microsoft, “[t]his guide provides steps that organizations can take to assess whether users have been targeted or compromised by threat actors exploiting CVE-2022-21894 via a Unified Extensible Firmware Interface (UEFI) bootkit called BlackLotus.” An attacker could exploit this vulnerability to take control of an affected system.

CISA urges users and organizations to review the Microsoft Blog Post for more information, and apply necessary detection, recovery, and prevention strategies. 
 

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation.

• CVE-2023-28252 Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Note: To view other newly added vulnerabilities in the catalog, click on the arrow in 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 Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (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 specified criteria.