CVE-2021-4104 (GCVE-0-2021-4104)
Vulnerability from cvelistv5
Published
2021-12-14 00:00
Modified
2024-08-03 17:16
Severity ?
CWE
  • CWE-502 - Deserialization of Untrusted Data
Summary
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.
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Log4j 1.x Version: Apache Log4j 1.2 1.2.x
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