The undertow client is not checking the server identity presented by the server certificate in https connections. This is a compulsory step (at least it should be performed by default) in https and in http/2. I would add it to any TLS client protocol.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2705 advisory.

    Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides     authentication and standards-based single sign-on capabilities for web and mobile applications.

    This release of Red Hat Single Sign-On 7.6.3 on RHEL 7 serves as a replacement for Red Hat Single Sign-On     7.6.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * okhttp: information disclosure via improperly used cryptographic function (CVE-2021-0341)

    * undertow: Server identity in https connection is not checked by the undertow client (CVE-2022-4492)

    * snakeyaml: Uncaught exception in java.base/java.util.ArrayList.hashCode (CVE-2022-38752)

    * dev-java/snakeyaml: DoS via stack overflow (CVE-2022-41854)

    * codec-haproxy: HAProxyMessageDecoder Stack Exhaustion DoS (CVE-2022-41881)

    * apache-james-mime4j: Temporary File Information Disclosure in MIME4J TempFileStorageProvider     (CVE-2022-45787)

    * RESTEasy: creation of insecure temp files (CVE-2023-0482)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2706 advisory.

    Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides     authentication and standards-based single sign-on capabilities for web and mobile applications.

    This release of Red Hat Single Sign-On 7.6.3 on RHEL 8 serves as a replacement for Red Hat Single Sign-On     7.6.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * okhttp: information disclosure via improperly used cryptographic function (CVE-2021-0341)

    * undertow: Server identity in https connection is not checked by the undertow client (CVE-2022-4492)

    * snakeyaml: Uncaught exception in java.base/java.util.ArrayList.hashCode (CVE-2022-38752)

    * dev-java/snakeyaml: DoS via stack overflow (CVE-2022-41854)

    * codec-haproxy: HAProxyMessageDecoder Stack Exhaustion DoS (CVE-2022-41881)

    * apache-james-mime4j: Temporary File Information Disclosure in MIME4J TempFileStorageProvider     (CVE-2022-45787)

    * RESTEasy: creation of insecure temp files (CVE-2023-0482)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2707 advisory.

    Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides     authentication and standards-based single sign-on capabilities for web and mobile applications.

    This release of Red Hat Single Sign-On 7.6.3 on RHEL 9 serves as a replacement for Red Hat Single Sign-On     7.6.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked     to in the References.

    Security Fix(es):

    * okhttp: information disclosure via improperly used cryptographic function (CVE-2021-0341)

    * undertow: Server identity in https connection is not checked by the undertow client (CVE-2022-4492)

    * snakeyaml: Uncaught exception in java.base/java.util.ArrayList.hashCode (CVE-2022-38752)

    * dev-java/snakeyaml: DoS via stack overflow (CVE-2022-41854)

    * codec-haproxy: HAProxyMessageDecoder Stack Exhaustion DoS (CVE-2022-41881)

    * apache-james-mime4j: Temporary File Information Disclosure in MIME4J TempFileStorageProvider     (CVE-2022-45787)

    * RESTEasy: creation of insecure temp files (CVE-2023-0482)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1513 advisory.

    Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly     application runtime.

    This release of Red Hat JBoss Enterprise Application Platform 7.4.10 serves as a replacement for Red Hat     JBoss Enterprise Application Platform 7.4.9, and includes bug fixes and enhancements. See the Red Hat     JBoss Enterprise Application Platform 7.4.10 Release Notes for information about the most significant bug     fixes and enhancements included in this release.

    Security Fix(es):

    * SnakeYaml: Constructor Deserialization Remote Code Execution (CVE-2022-1471)

    * hsqldb: Untrusted input may lead to RCE attack (CVE-2022-41853)

    * Undertow: Infinite loop in SslConduit during close (CVE-2023-1108)

    * undertow: Server identity in https connection is not checked by the undertow client (CVE-2022-4492)

    * snakeyaml: Uncaught exception in java.base/java.util.ArrayList.hashCode (CVE-2022-38752)

    * dev-java/snakeyaml: DoS via stack overflow (CVE-2022-41854)

    * codec-haproxy: HAProxyMessageDecoder Stack Exhaustion DoS (CVE-2022-41881)

    * apache-james-mime4j: Temporary File Information Disclosure in MIME4J TempFileStorageProvider     (CVE-2022-45787)

    * RESTEasy: creation of insecure temp files (CVE-2023-0482)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1514 advisory.

    Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly     application runtime.

    This release of Red Hat JBoss Enterprise Application Platform 7.4.10 serves as a replacement for Red Hat     JBoss Enterprise Application Platform 7.4.9, and includes bug fixes and enhancements. See the Red Hat     JBoss Enterprise Application Platform 7.4.10 Release Notes for information about the most significant bug     fixes and enhancements included in this release.

    Security Fix(es):

    * SnakeYaml: Constructor Deserialization Remote Code Execution (CVE-2022-1471)

    * hsqldb: Untrusted input may lead to RCE attack (CVE-2022-41853)

    * Undertow: Infinite loop in SslConduit during close (CVE-2023-1108)

    * undertow: Server identity in https connection is not checked by the undertow client (CVE-2022-4492)

    * snakeyaml: Uncaught exception in java.base/java.util.ArrayList.hashCode (CVE-2022-38752)

    * dev-java/snakeyaml: DoS via stack overflow (CVE-2022-41854)

    * codec-haproxy: HAProxyMessageDecoder Stack Exhaustion DoS (CVE-2022-41881)

    * apache-james-mime4j: Temporary File Information Disclosure in MIME4J TempFileStorageProvider     (CVE-2022-45787)

    * RESTEasy: creation of insecure temp files (CVE-2023-0482)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1512 advisory.

    Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly     application runtime.

    This release of Red Hat JBoss Enterprise Application Platform 7.4.10 serves as a replacement for Red Hat     JBoss Enterprise Application Platform 7.4.9 and includes bug fixes and enhancements. See the Red Hat JBoss     Enterprise Application Platform 7.4.10 Release Notes for information about the most significant bug fixes     and enhancements included in this release.

    Security Fix(es):

    * SnakeYaml: Constructor Deserialization Remote Code Execution (CVE-2022-1471)

    * hsqldb: Untrusted input may lead to RCE attack (CVE-2022-41853)

    * Undertow: Infinite loop in SslConduit during close (CVE-2023-1108)

    * undertow: Server identity in https connection is not checked by the undertow client (CVE-2022-4492)

    * snakeyaml: Uncaught exception in java.base/java.util.ArrayList.hashCode (CVE-2022-38752)

    * dev-java/snakeyaml: DoS via stack overflow (CVE-2022-41854)

    * codec-haproxy: HAProxyMessageDecoder Stack Exhaustion DoS (CVE-2022-41881)

    * apache-james-mime4j: Temporary File Information Disclosure in MIME4J TempFileStorageProvider     (CVE-2022-45787)

    * RESTEasy: creation of insecure temp files (CVE-2023-0482)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
175558	RHEL 7 : Red Hat Single Sign-On 7.6.3 security update on RHEL 7 (Moderate) (RHSA-2023:2705)	Nessus	Red Hat Local Security Checks	high
175557	RHEL 8 : Red Hat Single Sign-On 7.6.3 security update on RHEL 8 (Moderate) (RHSA-2023:2706)	Nessus	Red Hat Local Security Checks	high
175556	RHEL 9 : Red Hat Single Sign-On 7.6.3 security update on RHEL 9 (Moderate) (RHSA-2023:2707)	Nessus	Red Hat Local Security Checks	high
173692	RHEL 8 : Red Hat JBoss Enterprise Application Platform 7.4.10 on RHEL 8 (RHSA-2023:1513)	Nessus	Red Hat Local Security Checks	critical
173691	RHEL 9 : Red Hat JBoss Enterprise Application Platform 7.4.10 on RHEL 9 (RHSA-2023:1514)	Nessus	Red Hat Local Security Checks	critical
173690	RHEL 7 : Red Hat JBoss Enterprise Application Platform 7.4.10 on RHEL 7 (RHSA-2023:1512)	Nessus	Red Hat Local Security Checks	critical

Detections

Analytics

CVE-2022-4492

high

Tenable Plugins

high

high

high

critical

critical

critical