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.
The Internal Revenue Service (IRS) has released the first in a series of tips intended to increase public awareness of how to protect personal and financial data online and at home. A new tip will be available each Monday through the start of the tax season in January.
The first tip focuses on seven simple steps to secure your computer when conducting business online. US-CERT encourages users and administrators to review IRS Security Awareness Tax Tip Number 1 for additional information.
US-CERT reminds users to remain vigilant when browsing or shopping online this holiday season. Ecards from unknown senders may contain malicious links. Fake advertisements or shipping notifications may deliver infected attachments. Spoofed email messages and fraudulent posts on social networking sites may request support for phony causes.
To avoid seasonal campaigns that could result in security breaches, identity theft, or financial loss, users are encouraged to take the following actions:
Dell personal computers using the preinstalled certificate authority (CA) root certificate (eDellRoot) contain a critical vulnerability. Exploitation of the vulnerability could allow a remote attacker to read encrypted web browser traffic (HTTPS), impersonate (spoof) any website, or perform other attacks on the affected system.
The eDellRoot certificate originated from an update to the Dell Foundation Services (DFS) application on August 18, 2015. As of November 23, that update is no longer being provided. The certificate was also preinstalled on some systems November 20–23, 2015. Dell is pushing a DFS software update to remove the vulnerable certificate from affected systems.
VMware has released security updates to address a vulnerability in vCenter, vCloud Director, and Horizon View. Exploitation of this vulnerability may allow an attacker to obtain sensitive information.
Users and administrators are encouraged to review VMware Security Advisory VMSA-2015-0008 and apply the necessary updates.
The Internet Crime Complaint Center (IC3) has issued an alert warning that law enforcement personnel and public officials may be at an increased risk of cyber attacks. In addition to doxing (the act of gathering and publishing individuals' personal information without permission), threat actors have been observed compromising the email accounts of officers and officials. These target groups should protect their online presence and exposure.
Adobe has released security updates to address multiple vulnerabilities in ColdFusion, LiveCycle Data Services, and Adobe Premiere Clip. Exploitation of some of these vulnerabilities may allow a remote attacker to take control of an affected system.