CISA has issued requests for comment on the Secure Software Self-Attestation Form. CISA, in coordination with the Office of Budget and Management (OMB), released proposed guidance on secure software. This guidance seeks to secure software leveraged by the federal government. CISA expects agencies to use this proposed form to reduce the risk to the federal environment, thereby implementing a standardized process for agencies and software producers that will create transparency on the security of software development efforts.
 
Visit CISA.gov/secure-software-attestation-form for more information and to review the document. The comment period is open until June 26, 2023. CISA is specifically requesting insight on the feasibility, clarity, and usefulness of the document. To submit a comment, click the comment box at the top of Regulations.gov. 

The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated remote attacker to register arbitrary services. This could allow an attacker to use spoofed UDP traffic to conduct a denial-of-service (DoS) attack with a significant amplification factor.

Researchers from Bitsight and Curesec have discovered a way to abuse SLP—identified as CVE-2023-29552—to conduct high amplification factor DoS attacks using spoofed source addresses.

As noted by Bitsight, many SLP services visible on the internet appear to be older and likely abandoned systems. Administrators should consider disabling or restricting network access to SLP servers. Some organizations such as VMware have evaluated CVE-2023-29552 and have provided a response, see VMware Response to CVE-2023-29552 – reflective Denial-of-Service (DoS) amplification vulnerability in SLP for more information.

CISA urges organizations to review Bitsight’s blog post for more details and see CISA’s article on Understanding and Responding to Distributed Denial-of-Service Attacks for guidance on reducing the likelihood and impact of DoS attacks.

 

VMware has released a security update to address multiple vulnerabilities in Aria Operations for Logs (formerly vRealize Log Insight). A cyber threat actor could exploit these vulnerabilities to take control of an affected system.

CISA encourages users and administrators to review VMware Security Advisory VMSA-2023-0007 and apply the necessary updates.

Oracle has released its Critical Patch Update Advisory, Solaris Third Party Bulletin, and Linux Bulletin for April 2023 to address vulnerabilities affecting 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 Oracle’s Critical Patch Update Advisory, Solaris Third Party Bulletin, and Linux Bulletin and apply the necessary updates.

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

• CVE-2023-28432 MinIO Information Disclosure Vulnerability 
• CVE-2023-27350 PaperCut MF/NG Improper Access Control Vulnerability
• CVE-2023-2136 Google Chrome Skia Integer Overflow 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.