Stay informed on Log4Shell—a critical security vulnerability. Get the latest news, updates, and insights to protect your systems against exploits.
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Background for this topic.
Log4Shell is a critical security vulnerability discovered in the Apache Log4j logging utility, which is a widely-used Java-based logging framework. The vulnerability, officially designated as CVE-2021-44228, allows remote attackers to execute arbitrary code on a server or other computer system that uses a vulnerable version of Log4j.
In the context of information security, Log4Shell poses a significant threat due to the prevalence of Log4j in enterprise software and its potential for widespread exploitation. Attackers can exploit the vulnerability by sending specially crafted strings to a vulnerable system, which could then cause the system to execute malicious code. This could lead to unauthorized access, data theft, or the ability to cause disruptions and damage to IT infrastructure.
Log4Shell’s severity comes from its ease of exploitation, the broad attack surface it presents, and the fact that it affects applications of all sizes ranging from large-scale enterprise systems to small, custom-built software. Organizations worldwide have been urged to patch their systems immediately to mitigate the risk associated with this vulnerability, emphasizing the critical role that prompt vulnerability management and incident response play in maintaining cybersecurity.
Weekly headline count for the current query.
The notorious North Korean hacking group known as Lazarus continues to exploit CVE-2021-44228, aka "Log4Shell," this time to deploy three previously unseen malware families written in DLang. [...]
Roughly 38% of applications using the Apache Log4j library are using a version vulnerable to security issues, including Log4Shell, a critical vulnerability identified as CVE-2021-44228 that carries the maximum severity rating, despite patches being available for more than two years. [...]
CISA warned today that threat actors including state-backed hacking groups are still targeting VMware Horizon and Unified Access Gateway (UAG) servers using the Log4Shell (CVE-2021-44228) remote code execution vulnerability. [...]
A critical VMware bug tracked as CVE-2022-22954 continues to draw cybercriminal moths to its remote code-execution flame, with recent attacks focused on botnets and Log4Shell.
Amazon Web Services (AWS) has fixed four security issues in its hot patch from December that addressed the critical Log4Shell vulnerability (CVE-2021-44228) affecting cloud or on-premise environments running Java applications with a vulnerable version of the Log4j logging library or containers. [...]
The ubiquitous Log4j bug will be with us for years. John Hammond, senior security researcher at Huntress, discusses what's next.