Tóm tắt nhanh
- CVE-2021-4104 là lỗ hổng mức CAO (CVSS 7.5) ảnh hưởng log4j:log4j, org.zenframework.z8.dependencies.commons:log4j-1.2.17, log4j (apache).
- Xác suất bị khai thác trong 30 ngày tới (EPSS): 80.6%, cao hơn 99.6% các lỗ hổng khác.
- Cách xử lý: cập nhật lên 12.0.0.4.0, 11.2.8.0 hoặc mới hơn.
Mô tả
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.
Mô tả của NVD
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.
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