amazon aws CVE-2021-44228 vulnerability in Amazon and Other Products
Published on December 10, 2021

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Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.

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Known Exploited Vulnerability

This Apache Log4j2 Remote Code Execution Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Apache Log4j2 contains a vulnerability where JNDI features do not protect against attacker-controlled JNDI-related endpoints, allowing for remote code execution.

The following remediation steps are recommended / required by December 24, 2021: For all affected software assets for which updates exist, the only acceptable remediation actions are: 1) Apply updates; OR 2) remove affected assets from agency networks. Temporary mitigations using one of the measures provided at https://www.cisa.g

Vulnerability Analysis

CVE-2021-44228 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. It has the highest possible exploitability rating (3.9). The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.

What is an EL Injection Vulnerability?

The software constructs all or part of an expression language (EL) statement in a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed.

CVE-2021-44228 has been classified to as an EL Injection vulnerability or weakness.

Products Associated with CVE-2021-44228

You can be notified by whenever vulnerabilities like CVE-2021-44228 are published in these products:


What versions are vulnerable to CVE-2021-44228?

Each of the following must match for the vulnerability to exist.

Each of the following must match for the vulnerability to exist.

Vulnerable Packages

The following package name and versions may be associated with CVE-2021-44228

Package Manager Vulnerable Package Versions Fixed In
maven org.apache.logging.log4j:log4j-core <2.15.0 2.15.0
maven org.opencastproject:opencast-common < 9.10 9.10
maven org.opencastproject:opencast-common >= 10.0, < 10.6 10.6
maven de.averbis.textanalysis:pear-archetype = 2.0.0 2.0.1
maven org.powernukkit:powernukkit <=
maven com.hazelcast.jet:hazelcast-jet >= 4.1, < 4.5.3 4.5.3
maven com.hazelcast:hazelcast >= 5.0, < 5.0.2 5.0.2
maven com.hazelcast:hazelcast < 4.0.5 4.0.5
maven com.hazelcast:hazelcast >= 4.1.1, < 4.1.8 4.1.8
maven com.hazelcast:hazelcast >= 4.2, < 4.2.4 4.2.4