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.

Cisco Releases Security Updates for Jabber Desktop and Mobile Client Software

Cisco has released security updates to address vulnerabilities in Jabber for Windows, Jabber for MacOS, and Jabber for mobile platforms. 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 Cisco Security Advisory cisco-sa-jabber-ZktzjpgO and apply the necessary updates.

Adobe Releases Security Updates for Acrobat and Reader

Adobe has released security updates to address a vulnerability in Acrobat and Reader. An attacker could exploit this vulnerability to obtain sensitive information.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review Adobe Security Bulletin APSB20-75 and apply the necessary updates.

National Cyber Security Centre Cyber Awareness Campaign

The United Kingdom (UK) National Cyber Security Centre (NCSC) has launched a new cyber security campaign encouraging the public to adopt six behaviors to stay safe online.

The six Cyber Aware behaviors recommended by the NSCS are:

New ACSC Cybersecurity Campaign Begins by Focusing on Ransomware Threats

The Australian Cyber Security Centre (ACSC) has launched a new cyber security campaign encouraging all Australians to protect themselves against online threats. The initial focus of the campaign is ransomware threats, and the ACSC provides easy-to-follow security advice at cyber.gov.au to help Australians act now and stay secure.  

OpenSSL Releases Security Update

OpenSSL has released a security update to address a vulnerability affecting all versions of 1.0.2 and 1.1.1 released before version 1.1.1i. An attacker could exploit this vulnerability to cause a denial-of-service condition.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the OpenSSL Security Advisory and apply the necessary update.

Theft of FireEye Red Team Tools

FireEye has released a blog addressing unauthorized access to their Red Team’s tools by a highly sophisticated threat actor. Red Team tools are often used by cybersecurity organizations to evaluate the security posture of enterprise systems. Although the Cybersecurity and Infrastructure Security Agency (CISA) has not received reporting of these tools being maliciously used to date, unauthorized third-party users could abuse these tools to take control of targeted systems. The exposed tools do not contain zero-day exploits.