How Log4j is Exploited and Tips to Stay Protected

Log4j Vulnerabilities 

A serious new threat has been sweeping across networks using the Log4j java logging library to infiltrate networks. Coined Log4Shell, this particular Log4j vulnerability is a high-risk issue for everyone, especially SMBs. With millions of attempts already being detected, this novel attack gives hackers access to a range of sensitive information. Logging is used in almost every application; from Minecraft to cloud services. This gives hackers a buffet of targets to choose and attack — and you want to make sure your business isn’t on the menu. 

This devastating zero-day exploit was first exposed in December and given the maximum 10.0 critical severity rating. Director of the U.S. Cybersecurity & Infrastructure Security Agency, Jen Easterly said Log4Shell is the most serious vulnerability she’s seen in her career.

SMBs should be extremely wary of this new wave of hacking and ensure their security measures are in place. Given the unparalleled scope of this new attack, SMBs are particularly vulnerable, given the lack of regular patching and network monitoring. Fortunately, with IGI CyberLabs Nodeware® Solution, your business can easily prevent and detect these attacks, keeping your system as safe as possible. 

What is Log4j? 

Log4j is a java-based logging utility produced by Apache. It is frequently used to record errors, assist with debugging, and log routine system operations. It can also be used in gaming as part of an in-game console function (most famously in Minecraft). Because this software is open-source and the need to log system operations is universal, Apache’s Log4j tool has created a massive vulnerability across the entire internet.

What is Log4Shell? 

Log4Shell works by abusing a feature in Log4j. While there are a number of different ways Log4j can be exploited, one of the most common techniques involves an attacker using the log to redirect server queries from a company’s server, to their own. At that point, they can upload files or engage in any other number of malicious activities.

Why is it an issue? 

Log4Shell attacks range from people trying to lockdown Minecraft to mining Bitcoin to installing ransomware. There are an estimated 2.5 - 3 billion affected devices. Given the vast scope of this vulnerability, it provides an “economy of scale,” that incentivizes hackers to target as many systems as possible. The ease of this hacking also makes it extremely problematic. Its low-level hacking ability means everyone from home users, service providers, source code developers and security researchers can easily be exploited and almost anyone can hack using the Log4Shell. 

Researchers have found that no one is safe. Users of Apple, Cloudflare, Twitter, Valve, Tencent, and other large companies are already being targeted. SMBs, with their comparatively weaker security systems, have proven especially vulnerable. This is why it is imperative for SMBs to understand their networks, including the devices that are accessing it, and if their software is fully patched.

Identify Log4j Vulnerabilities with Nodeware 

Nodeware is the most efficient, cost-effective, and least resource-intensive vulnerability management solution available in the market. Using industry-leading technology, the widely used logging library Log4j is automatically and thoroughly scanned by Nodeware agents and sensors for Log4j vulnerabilities (CVE-2021-44228 and CVE-2021-45046). 

This automatic update enables users to utilize the new detection technology to immediately learn of any Log4j vulnerabilities. This development will ensure you reduce your risk level to the lowest possible level. 

Stuart Cohen, president of IGI CyberLabs explains that “Nodeware Agents and credentialed scans can now pick up the updates and additional content automatically with no user intervention required,” This Nodeware solution ensures your systems are safe and are constantly being checked for Log4j vulnerabilities.

This update also allows Nodeware to identify not only the assets with issues, but also the offending Java applications. The Nodware dashboard and reports are also available through results from the Log4j scans and will be included alongside other vulnerability data. 

IGI can assist you on your cybersecurity journey! Learn more or start a free trial at www.nodeware.com or contact your technology solutions provider.