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    Apache Log4j is a Java-based logging utility originally written by Ceki Gülcü. It is part of the Apache Logging Services, a project of the Apache Software...
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  • (CVE-2021-44228) is a zero-day vulnerability reported in November 2021 in Log4j, a popular Java logging framework, involving arbitrary code execution. The...
    36 KB (3,505 words) - 08:41, 2 February 2025
  • Apache Commons Logging (also known as Java Commons Logging or JCL) and Log4j. This led to problems when integrating different third-party libraries (JARs)...
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  • classpath and may be the standard Sun Java logging package java.util.logging, Log4j, Reload4j, Logback or tinylog. The separation of the client API from the...
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  • ubiquitous Java logging framework software Log4j. The report was privately disclosed to project developers of Log4j, a team at The Apache Software Foundation...
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  • 4534 Unofficial Armagetron Advanced server default 4560 Unofficial default Log4j socketappender port 4567 Unofficial Sinatra default server port in development...
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  • the capability to defend against zero-day attacks, for example during the log4j vulnerability exploits. In the wake of the pandemic, Darktrace reported...
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  • community only) had better security and thread management. It now includes a log4j based logging system and a few bug-fixes of the older versions.[citation...
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  • vulnerability called "Log4Shell" was discovered in popular logging framework Log4j, affecting many services including iCloud, Minecraft: Java Edition and Steam...
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  • Cyber Safety Review Board (July 11, 2022), Review of the December 2021 Log4j Event (PDF), Cybersecurity and Infrastructure Security Agency, Wikidata Q113274848...
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  • library is used for asynchronous logging in the popular Java software library Log4j. Concurrent data structure "The LMAX Architecture". martinfowler.com. Retrieved...
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    2021-12-13. Retrieved 2021-12-17. Bray, Hiawatha (15 December 2021). "Emerging 'Log4j' software bug spawns worldwide worry over cyber attacks - The Boston Globe"...
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  • Chainsaw: a GUI log viewer. Log4cxx: provides logging services for C++. Log4j: Apache Log4j Log4net: provides logging services for .NET. Log4php: a logging framework...
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    1.13.4, 1.12.6, 1.11.5 releases, which were supposed to only contain a Log4j upgrade to 2.15.0, were skipped because CVE-2021-45046 was discovered during...
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    Retrieved 7 May 2020. "Lazarus hackers drop new RAT malware using 2-year-old Log4j bug". 11 December 2023. Retrieved 11 December 2023. "A ship carrying silverware...
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  • Specifically, the gang uses Emotet botnet malware as an entry point, and Log4J Auto Expl to propagate the ransomware laterally within the network.[jargon][verification...
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  • December 2017. Retrieved May 30, 2018. Corin Faife (December 16, 2021). "Log4j is patched, but the exploits are just getting started". Verge. Retrieved...
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  • Thumbnail for Kemba Walden
    Safety Review Board, and she contributed to its review of the December 2021 Log4j event. Walden later served as assistant general counsel of the Digital Crimes...
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    attacks through Log4J flaw". Financial Times. Archived from the original on 10 December 2022. Retrieved 3 January 2022. "Log4j – Apache Log4j Security Vulnerabilities"...
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  • Stream processing platform Apache Log4j Java logging framework - Log4j 2 is the enhanced version of the popular Log4j project. Apache Lucene High-performance...
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  • guitar tablature Log4JFugue is a utility for converting log files created by log4j into musical patterns; this allows one to listen for changes in a log file...
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  • OpenJS below, for additional investment): 176,955 Euro JUnit: 180,000 Euro Log4j: 596,160 Euro Mamba: 349,875 Euro OpenBGPd: 200,000 Euro OpenBLAS: 263,000...
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  • 2022. "Singapore government patching systems after alert on 'critical' Log4j software vulnerability". CNA. "Inaugural Singapore International Cyber Week...
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    2022. "After Log4j, Open-Source Software Is Now a National Security Issue". Gizmodo. Retrieved January 16, 2022. Greig, Jonathan. "After Log4j, White House...
    282 KB (23,757 words) - 20:42, 6 May 2025
  • - RELP Logback Plugin jla_04 - Java Util Logging RELP Handler jla_05 - Log4j RELP Plugin "Why you can't build a reliable TCP protocol without app-level...
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  • Ukrainian government websites hacked and defaced" "CVE-2021-32648 Detail" "Ukraine Attacks Involved Exploitation of Log4j, October CMS Vulnerabilities"...
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  • including utilities for collections, math, IO, and more. available here Log4j Apache A widely used Java logging library. available here JUnit JUnit A...
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  • Apache HTTP, Apache Tomcat, Liferay, JUnit, Spock, Mockito, H2, CXF, SLF4J/Log4J, Jackson, XStream, Graphna, Druid, Presto. NEXEN includes Gateway, a web...
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  • from software libraries, for example the Log4Shell exploit in the popular Log4j library estimated to affect hundreds of millions of devices. The concept...
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  • a construction used by many hash functions Mapped Diagnostic Context, a Log4j mechanism used to pass additional information to the underlying logger to...
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