CVE-2020-9488 – log4j: improper validation of certificate with host mismatch in SMTP appender
https://notcve.org/view.php?id=CVE-2020-9488
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed in Apache Log4j 2.12.3 and 2.13.1 Validación incorrecta del certificado con desajuste de host en el apéndice SMTP de Apache Log4j. Esto podría permitir que una conexión SMTPS fuera interceptada por un ataque de tipo man-in-the-middle que podría filtrar cualquier mensaje de registro enviado a través de ese appender. Corregido en Apache Log4j 2.12.3 y 2.13.1 • https://issues.apache.org/jira/browse/LOG4J2-2819 https://lists.apache.org/thread.html/r0a2699f724156a558afd1abb6c044fb9132caa66dce861b82699722a%40%3Cjira.kafka.apache.org%3E https://lists.apache.org/thread.html/r0df3d7a5acb98c57e64ab9266aa21eeee1d9b399addb96f9cf1cbe05%40%3Cdev.zookeeper.apache.org%3E https://lists.apache.org/thread.html/r1fc73f0e16ec2fa249d3ad39a5194afb9cc5afb4c023dc0bab5a5881%40%3Cissues.hive.apache.org%3E https://lists.apache.org/thread.html/r22a56beb76dd8cf18e24fda9072f1e05990f49d6439662d3782a392f%40%3Cissues.hive.apache.org%3E https://lists.apache.o • CWE-295: Improper Certificate Validation •
CVE-2017-5645 – log4j: Socket receiver deserialization vulnerability
https://notcve.org/view.php?id=CVE-2017-5645
In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code. En Apache Log4j 2.x en versiones anteriores a 2.8.2, cuando se utiliza el servidor de socket TCP o el servidor de socket UDP para recibir sucesos de registro serializados de otra aplicación, puede enviarse una carga binaria especialmente diseñada que, cuando se deserializa, puede ejecutar código arbitrario. It was found that when using remote logging with log4j socket server the log4j server would deserialize any log event received via TCP or UDP. An attacker could use this flaw to send a specially crafted log event that, during deserialization, would execute arbitrary code in the context of the logger application. • https://github.com/pimps/CVE-2017-5645 http://www.openwall.com/lists/oss-security/2019/12/19/2 http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/97702 http://www.securitytracker.com/id/1040200 http://www.securit • CWE-502: Deserialization of Untrusted Data •