CVE-2021-4104 | BDVDB-2026-165693 Detail
ApacheApache Log4j 1.x
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-502 Deserialization of Untrusted Data
References#
- https://www.cve.org/CVERecord?id=CVE-2021-44228
- https://github.com/apache/logging-log4j2/pull/608#issuecomment-990494126
- https://access.redhat.com/security/cve/CVE-2021-4104
- https://www.kb.cert.org/vuls/id/930724
- http://www.openwall.com/lists/oss-security/2022/01/18/3
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0033
- https://security.netapp.com/advisory/ntap-20211223-0007/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://security.gentoo.org/glsa/202209-02
- https://security.gentoo.org/glsa/202310-16
- https://security.gentoo.org/glsa/202312-02
- https://security.gentoo.org/glsa/202312-04
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.