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CISA Adds One Known Exploited Vulnerability to Catalog

Jan 31, 2024

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2022-48618 Apple Multiple Products Improper Authentication Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. 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.

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New Mitigations to Defend Against Exploitation of Ivanti Connect Secure and Policy Secure Gateways

Jan 30, 2024

CISA is releasing this alert to provide cyber defenders with new mitigations to defend against threat actors exploiting Ivanti Connect Secure and Policy Secure Gateways vulnerabilities in Ivanti devices (CVE-2023-46805 and CVE-2024-21887).   Threat actors are continuing to leverage vulnerabilities in Ivanti Connect Secure and Policy Secure Gateways to capture credentials and/or drop webshells that enable further compromise of enterprise networks. Some threat actors have recently developed workarounds to current mitigations and detection methods and have been able to exploit weaknesses, move laterally, and escalate privileges without detection. CISA is aware of instances in which sophisticated threat actors have subverted the external integrity checker tool (ICT), further minimizing traces of their intrusion.   If an organization has been running Ivanti Connect Secure (9.x and 22.x) and Policy Secure gateways over the last several weeks and/or continues to run these products, CISA recommends continuous threat hunting on any systems connected to—or recently connected to—the Ivanti device. Additionally, organizations should monitor authentication, account usage, and identity management services that could be exposed and isolate the system(s) from any enterprise resources as much as possible.   After applying patches, when these become available, CISA recommends that organizations continue to hunt their network in order to detect any compromise that may have occurred before patches were implemented.   This guidance supplements CISA’s previous guidance for mitigation and detection, which remains applicable. For previous guidance, see CISA Issues Emergency Directive on Ivanti Vulnerabilities and Ivanti Releases Security Update for Connect Secure and Policy Secure Gateways. 

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CISA Releases Eight Industrial Control Systems Advisories

Jan 30, 2024

CISA released eight Industrial Control Systems (ICS) advisories on January 30, 2024. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-24-030-01 Emerson Rosemount GC370XA, GC700XA, GC1500XA ICSA-24-030-02 Mitsubishi Electric FA Engineering Software Products ICSA-24-030-03 Mitsubishi Electric MELSEC WS Series Ethernet Interface Module ICSA-24-030-04 Hitron Systems Security Camera DVR ICSA-24-030-05 Rockwell Automation ControlLogix and GuardLogix  ICSA-24-030-06 Rockwell Automation FactoryTalk Service Platform ICSA-24-030-07 Rockwell Automation LP30/40/50 and BM40 Operator Interface ICSA-23-208-03 Mitsubishi Electric CNC Series (Update E)   CISA encourages users and administrators to review the newly released ICS advisories for technical details and mitigations.

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Juniper Networks Releases Security Bulletin for J-Web in Junos OS SRX Series and EX Series

Jan 29, 2024

Juniper Networks released a security bulletin to address multiple vulnerabilities for J-Web in Junos OS SRX Series and EX Series. 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 Juniper Bulletin JSA76390 and apply the necessary updates.

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