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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2021-4104

Deserialization of untrusted data in JMSAppender in Apache Log4j 1.2

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Status
Published
Published
Updated
Assigning organization
apache

Description

JMSAppender in Log4j 1.2 is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration. The attacker can provide TopicBindingName and TopicConnectionFactoryBindingName configurations causing JMSAppender to perform JNDI requests that result in remote code execution in a similar fashion to CVE-2021-44228. Note this issue only affects Log4j 1.2 when specifically configured to use JMSAppender, which is not the default. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Log4j 1.x

  • Apache Log4j 1.2 1.2.xaffected

References