The US-CERT Current Activity web page is a regularly updated summary of the most frequent, high-impact types of security incidents currently being reported to the US-CERT.

NSA Releases Advisory on Sandworm Actors Exploiting an Exim Vulnerability

The National Security Agency (NSA) has released a cybersecurity advisory on Russian advanced persistent threat (APT) group Sandworm exploiting a vulnerability—CVE-2019-10149—in Exim Mail Transfer Agent (MTA) software. An unauthenticated remote attacker can use this vulnerability to send a specially crafted email to execute commands with root privileges, allowing the attacker to install programs, modify data, and create new accounts.

Apple Releases Security Updates

Apple has released security updates to address vulnerabilities in multiple products. A remote attacker could exploit some of these vulnerabilities to take control of an affected system.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the Apple security pages for the following products and apply the necessary updates:

Microsoft Releases Security Update for Edge

Microsoft has released a security update to address a vulnerability in Edge (Chromium-based). A remote attacker could exploit this vulnerability to write files to arbitrary locations and gain elevated privileges.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review Microsoft’s Security Advisory for CVE-2020-1195 and apply the necessary update.

Cisco Releases Security Updates

Cisco has released security updates to address vulnerabilities in Unified CCX software and Prime Network Registrar. A remote attacker could exploit one of these vulnerabilities to take control of an affected system.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the following Cisco advisories and apply the necessary updates:

ACSC Releases Cyber Criminal and APT Tradecraft Trends for 2019-2020

The Australian Cyber Security Centre (ACSC) has released a summary of trends for 2019-2020 outlining tactics, techniques, and procedures (TTPs) used by cyber criminals and advanced persistent threat (APT) groups to target Australian networks. ACSC uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework to identify notable adversary TTPs.  

CISA, DOE, and UK’s NCSC Issue Guidance on Protecting Industrial Control Systems

The Cybersecurity and Infrastructure Security Agency (CISA), the Department of Energy (DOE), and the UK's National Cyber Security Centre (NCSC) have released Cybersecurity Best Practices for Industrial Control Systems, an infographic providing recommended cybersecurity practices for industrial control systems (ICS).

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