What to Do About Log4j

Log4j poses some deep challenges to IT. In this article I’ll discuss some tactical measures people are already taking now and over the next week or two, and some strategic guidance for what to do after the immediate crisis abates. Read More …

FBI: APT Actors Exploiting Newly-Identified Zero Day in ManageEngine Desktop Central

Since at least late October 2021, APT actors have been actively exploiting a zero-day, now identified as CVE-2021-44515, on ManageEngine Desktop Central servers. The APT actors were observed compromising Desktop Central servers, dropping a webshell that overrides a legitimate function Read More …

Readout Of CISA Call With Critical Infrastructure Partners On Log4j Vulnerabilities And The Need For Increased Vigilance This Holiday Season

WASHINGTON – This afternoon, the Cybersecurity and Infrastructure Security Agency (CISA) held a call with critical infrastructure entities from the public and private sectors to emphasize the importance of remaining vigilant against cyber threats over the holiday season, particularly with Read More …

Apache releases new 2.17.0 patch for Log4j to solve denial of service vulnerability

Apache has released version 2.17.0 of the patch for Log4j after discovering issues with their previous release, which came out on Tuesday. Apache said version 2.16 “does not always protect from infinite recursion in lookup evaluation” and explained that it Read More …

CISA Issues Emergency Directive Requiring Federal Agencies To Mitigate Apache Log4j Vulnerabilities

WASHINGTON – The Cybersecurity and Infrastructure Security Agency (CISA) issued Emergency Directive (ED) 22-02 today requiring federal civilian departments and agencies to assess their internet-facing network assets for the Apache Log4j vulnerabilities and immediately patch these systems or implement other appropriate mitigation measures. This Directive will be updated to further drive additional mitigation actions. The Read More …

Second Log4j vulnerability CVE 2021-45046 discovered, patch already released

A second vulnerability involving Apache Log4j was found on Tuesday after cybersecurity experts spent days attempting to patch or mitigate CVE-2021-44228. The description of the new vulnerability, CVE 2021-45046, says the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was Read More …

CISA Issues Apache Log4j Vulnerability Guidance

CISA and its partners, through the Joint Cyber Defense Collaborative, are responding to active, widespread exploitation of a critical remote code execution (RCE) vulnerability (CVE-2021-44228) in Apache’s Log4j software library, versions 2.0-beta9 to 2.14.1, known as “Log4Shell” and “Logjam.” Log4j Read More …

Log4j flaw: Nearly half of corporate networks have been targeted by attackers trying to use this vulnerability

The number of attacks aiming to take advantage of the recently disclosed security flaw in the Log4j2 Java logging library continues to grow. The vulnerability (CVE-2021-44228) was publicly disclosed on December 9 and enables remote code execution and access to Read More …

Actively Exploited Microsoft Zero-Day Allows App Spoofing, Malware Delivery

Microsoft has addressed a zero-day vulnerability that was exploited in the wild to deliver Emotet, Trickbot and more in the form of fake applications. The patch came as part of the computing giant’s December Patch Tuesday update, which included a Read More …