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CVE-2021-4104
—CVSS 3.1
7.5 high
EPSS
81%p100
Published
()
Modified
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.
- Vendors
- apachefedoraprojectredhatoracle
- Products
- log4j, fedora, codeready studio, integration camel k, integration camel quarkus, jboss a-mq, jboss a-mq streaming, jboss data grid, jboss data virtualization, jboss enterprise application platform, jboss fuse, jboss fuse service works
- Weakness
- CWE-502
- Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
In the news8 stories
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Threat actors continue to exploit Log4j flaws, Microsoft Warns
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Microsoft Warns of Continued Attacks Exploiting Apache Log4j Vulnerabilities
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New Apache Log4j Update Released to Patch Newly Discovered Vulnerability
60
New Local Attack Vector Expands the Attack Surface of Log4j Vulnerability
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