Improper Certificate Validation in Apache Sling Commons Messaging Mail - CVE-2021-44549

Vulnerability identifier: #VU98523

CSH Severity: Medium

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-44549

CWE-ID: CWE-295

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper certificate validation when sending emails via SMTPS. A remote attacker can perform MitM attack.

Apache Sling Commons Messaging Mail
Red Hat build of Quarkus
OpenShift Developer Tools and Services
Keycloak
jenkins (Red Hat package)
jenkins-2-plugins (Red Hat package)

Install updates from vendor's website.

Apache Sling Commons Messaging Mail - update to 2.0.0
Keycloak - update to 26.0.4
jenkins (Red Hat package) - addressed in versions 2.462.3.1729837947-3.el8, 2.462.3.1729839727-3.el8, 2.462.3.1729839924-3.el8, 2.462.3.1730119132-3.el8
Red Hat build of Quarkus - addressed in versions 3.2.12.SP1, 3.8.6.SP1
jenkins-2-plugins (Red Hat package) - addressed in versions 4.12.1730119231-1.el8, 4.13.1729840148-1.el8, 4.14.1729839844-1.el8, 4.15.1729838165-1.el8

• https://lists.apache.org/thread/l8p9h2bqvkj6rhv4w8kzctb817415b7f

• MitM attack in Apache Sling Commons Messaging Mail
• Multiple vulnerabilities in Red Hat build of Quarkus 3.8.6
• Multiple vulnerabilities in Red Hat build of Quarkus 3.2.12
• Red Hat Product OCP Tools 4 update for Openshift Jenkins
• Red Hat Product OCP Tools 4 update for Openshift Jenkins
• Red Hat Product OCP Tools 4 update for Openshift Jenkins
• Red Hat Product OCP Tools 4 update for Openshift Jenkins
• Keycloak update for Apache Sling Commons Messaging Mail