Description


Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who can control log messages or log message parameters can execute arbitrary code loaded from LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects.


https://nvd.nist.gov/vuln/detail/CVE-2021-44228

Mitigation


This vulnerability potentially affects ONLY LISTSERV Maestro versions between 10.0.0 and 10.0-4. LISTSERV Maestro 10.0.5 and later have a newer version of Log4J (2.16.0 or later) that patches the vulnerability described in this CVE.


LISTSERV Maestro prior to 10.x did not use Log4J and are not affected by this CVE.


LISTSERV itself does not use Log4J and has never been affected by this CVE.