Undertow in Red Hat wildfly before version 11.0.0.Beta1 is vulnerable to a resource exhaustion resulting in a denial of service. Undertow keeps a cache of seen HTTP headers in persistent connections. It was found that this cache can easily exploited to fill memory with garbage, up to "max-headers" (default 200) * "max-header-size" (default 1MB) per active TCP connection.

Red Hat Single Sign-On 7.1 is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Red Hat Single Sign-On 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 7.1 serves as a replacement for Red Hat Single Sign-On 7.0, and includes several bug fixes and enhancements. For further information regarding those, refer to the Release Notes linked to in the References section.

Security Fix(es) :

* It was found that keycloak did not correctly check permissions when handling service account user deletion requests sent to the REST server. An attacker with service account authentication could use this flaw to bypass normal permissions and delete users in a separate realm. (CVE-2016-8629)

* It was found that JBoss EAP 7 Header Cache was inefficient. An attacker could use this flaw to cause a denial of service attack.
(CVE-2016-9589)

* It was found that keycloak's implementation of HMAC verification for JWS tokens uses a method that runs in non-constant time, potentially leaving the application vulnerable to timing attacks. (CVE-2017-2585)

Red Hat would like to thank Gabriel Lavoie (Halogen Software) for reporting CVE-2016-9589 and Richard Kettelerij (Mindloops) for reporting CVE-2017-2585.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:0872 advisory.

    Red Hat Single Sign-On 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 7.1 serves as a replacement for Red Hat Single Sign-On 7.0, and     includes several bug fixes and enhancements. For further information regarding those, refer to the Release     Notes linked to in the References section.

    Security Fix(es):

    * It was found that keycloak did not correctly check permissions when handling service account user     deletion requests sent to the REST server. An attacker with service account authentication could use this     flaw to bypass normal permissions and delete users in a separate realm. (CVE-2016-8629)

    * It was found that JBoss EAP 7 Header Cache was inefficient. An attacker could use this flaw to cause a     denial of service attack. (CVE-2016-9589)

    * It was found that keycloak's implementation of HMAC verification for JWS tokens uses a method that runs     in non-constant time, potentially leaving the application vulnerable to timing attacks. (CVE-2017-2585)

    Red Hat would like to thank Gabriel Lavoie (Halogen Software) for reporting CVE-2016-9589 and Richard     Kettelerij (Mindloops) for reporting CVE-2017-2585.

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.

An update for eap7-jboss-ec2-eap is now available for Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 and Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The eap7-jboss-ec2-eap package provides scripts for Red Hat JBoss Enterprise Application Platform running on the Amazon Web Services (AWS) Elastic Compute Cloud (EC2).

With this update, the eap7-jboss-ec2-eap package has been updated to ensure compatibility with Red Hat JBoss Enterprise Application Platform 7.0.5.

Refer to the JBoss Enterprise Application Platform 7.0.5 Release Notes, linked to in the References section, for information on the most significant bug fixes and enhancements included in this release.

Security Fix(es) :

* It was discovered that the jboss init script performed unsafe file handling which could result in local privilege escalation.(CVE-2016-8656)

* It was found that JBoss EAP 7 Header Cache was inefficient. An attacker could use this flaw to cause a denial of service attack.(CVE-2016-9589)

The CVE-2016-9589 issue was discovered by Gabriel Lavoie (Halogen Software).

Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications.

An update is now available for Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Red Hat JBoss Enterprise Application Platform 6 is a platform for Java applications based on JBoss Application Server 7.

This release of Red Hat JBoss Enterprise Application Platform 7.0.5 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.0.4, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es) :

* It was discovered that the jboss init script performed unsafe file handling which could result in local privilege escalation.
(CVE-2016-8656)

* It was found that JBoss EAP 7 Header Cache was inefficient. An attacker could use this flaw to cause a denial of service attack.
(CVE-2016-9589)

Red Hat would like to thank Gabriel Lavoie (Halogen Software) for reporting CVE-2016-9589.

An update is now available for Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Red Hat JBoss Enterprise Application Platform 6 is a platform for Java applications based on JBoss Application Server 7.

This release of Red Hat JBoss Enterprise Application Platform 7.0.5 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.0.4, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es) :

* It was discovered that the jboss init script performed unsafe file handling which could result in local privilege escalation.
(CVE-2016-8656)

* It was found that JBoss EAP 7 Header Cache was inefficient. An attacker could use this flaw to cause a denial of service attack.
(CVE-2016-9589)

Red Hat would like to thank Gabriel Lavoie (Halogen Software) for reporting CVE-2016-9589.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:3455 advisory.

  - Apache ActiveMQ Artemis: Deserialization of untrusted input vulnerability (CVE-2016-4978)

  - eap: HTTP header injection / response splitting (CVE-2016-4993)

  - EAP7 Privilege escalation when managing domain including earlier version slaves (CVE-2016-5406)

  - EAP7: Internal IP address disclosed on redirect when request header Host field is not set (CVE-2016-6311)

  - undertow: Long URL proxy request lead to java.nio.BufferOverflowException and DoS (CVE-2016-7046)

  - EAP: Sensitive data can be exposed at the server level in domain mode (CVE-2016-7061)

  - admin-cli: Potential EAP resource starvation DOS attack via GET requests for server log files     (CVE-2016-8627)

  - jboss: jbossas: unsafe chown of server.log in jboss init script allows privilege escalation     (CVE-2016-8656)

  - wildfly: ParseState headerValuesCache can be exploited to fill heap with garbage (CVE-2016-9589)

  - wildfly: Arbitrary file read via path traversal (CVE-2017-2595)

  - undertow: HTTP Request smuggling vulnerability due to permitting invalid characters in HTTP requests     (CVE-2017-2666)

  - undertow: IO thread DoS via unclean Websocket closing (CVE-2017-2670)

  - jackson-databind: Deserialization vulnerability via readValue method of ObjectMapper (CVE-2017-7525)

  - hibernate-validator: Privilege escalation when running under the security manager (CVE-2017-7536)

  - undertow: HTTP Request smuggling vulnerability (incomplete fix of CVE-2017-2666) (CVE-2017-7559)

  - undertow: improper whitespace parsing leading to potential HTTP request smuggling (CVE-2017-12165)

  - EAP-7: Wrong privileges on multiple property files (CVE-2017-12167)

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

An update is now available for Red Hat JBoss Enterprise Application Platform 7.1 for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Red Hat JBoss Enterprise Application Platform is a platform for Java applications based on the JBoss Application Server.

This release of Red Hat JBoss Enterprise Application Platform 7.1.0 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.0.0, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es) :

* A Denial of Service can be caused when a long request is sent to EAP 7. (CVE-2016-7046)

* The jboss init script unsafe file handling resulting in local privilege escalation. (CVE-2016-8656)

* A deserialization vulnerability via readValue method of ObjectMapper which allows arbitrary code execution. (CVE-2017-7525)

* JMSObjectMessage deserializes potentially malicious objects allowing Remote Code Execution. (CVE-2016-4978)

* Undertow is vulnerable to the injection of arbitrary HTTP headers, and also response splitting. (CVE-2016-4993)

* The domain controller will not propagate its administrative RBAC configuration to some slaves leading to escalate their privileges.
(CVE-2016-5406)

* Internal IP address disclosed on redirect when request header Host field is not set. (CVE-2016-6311)

* Potential EAP resource starvation DOS attack via GET requests for server log files. (CVE-2016-8627)

* Inefficient Header Cache could cause denial of service.
(CVE-2016-9589)

* The log file viewer allows arbitrary file read to authenticated user via path traversal. (CVE-2017-2595)

* HTTP Request smuggling vulnerability due to permitting invalid characters in HTTP requests. (CVE-2017-2666)

* Websocket non clean close can cause IO thread to get stuck in a loop. (CVE-2017-2670)

* Privilege escalation with security manager's reflective permissions when granted to Hibernate Validator. (CVE-2017-7536)

* Potential http request smuggling as Undertow parses the http headers with unusual whitespaces. (CVE-2017-7559)

* Properties based files of the management and the application realm are world readable allowing access to users and roles information to all the users logged in to the system. (CVE-2017-12167)

* RBAC configuration allows users with a Monitor role to view the sensitive information. (CVE-2016-7061)

* Improper whitespace parsing leading to potential HTTP request smuggling. (CVE-2017-12165)

Red Hat would like to thank Liao Xinxi (NSFOCUS) for reporting CVE-2017-7525; Calum Hutton (NCC Group) and Mikhail Egorov (Odin) for reporting CVE-2016-4993; Luca Bueti for reporting CVE-2016-6311;
Gabriel Lavoie (Halogen Software) for reporting CVE-2016-9589; and Gregory Ramsperger and Ryan Moak for reporting CVE-2017-2670. The CVE-2016-5406 issue was discovered by Tomaz Cerar (Red Hat); the CVE-2016-8627 issue was discovered by Darran Lofthouse (Red Hat) and Brian Stansberry (Red Hat); the CVE-2017-2666 issue was discovered by Radim Hatlapatka (Red Hat); the CVE-2017-7536 issue was discovered by Gunnar Morling (Red Hat); the CVE-2017-7559 and CVE-2017-12165 issues were discovered by Stuart Douglas (Red Hat); and the CVE-2017-12167 issue was discovered by Brian Stansberry (Red Hat) and Jeremy Choi (Red Hat). Upstream acknowledges WildFly as the original reporter of CVE-2016-6311.

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:3458 advisory.

  - Apache ActiveMQ Artemis: Deserialization of untrusted input vulnerability (CVE-2016-4978)

  - eap: HTTP header injection / response splitting (CVE-2016-4993)

  - EAP7 Privilege escalation when managing domain including earlier version slaves (CVE-2016-5406)

  - EAP7: Internal IP address disclosed on redirect when request header Host field is not set (CVE-2016-6311)

  - undertow: Long URL proxy request lead to java.nio.BufferOverflowException and DoS (CVE-2016-7046)

  - EAP: Sensitive data can be exposed at the server level in domain mode (CVE-2016-7061)

  - admin-cli: Potential EAP resource starvation DOS attack via GET requests for server log files     (CVE-2016-8627)

  - jboss: jbossas: unsafe chown of server.log in jboss init script allows privilege escalation     (CVE-2016-8656)

  - wildfly: ParseState headerValuesCache can be exploited to fill heap with garbage (CVE-2016-9589)

  - wildfly: Arbitrary file read via path traversal (CVE-2017-2595)

  - undertow: HTTP Request smuggling vulnerability due to permitting invalid characters in HTTP requests     (CVE-2017-2666)

  - undertow: IO thread DoS via unclean Websocket closing (CVE-2017-2670)

  - jackson-databind: Deserialization vulnerability via readValue method of ObjectMapper (CVE-2017-7525)

  - hibernate-validator: Privilege escalation when running under the security manager (CVE-2017-7536)

  - undertow: HTTP Request smuggling vulnerability (incomplete fix of CVE-2017-2666) (CVE-2017-7559)

  - undertow: improper whitespace parsing leading to potential HTTP request smuggling (CVE-2017-12165)

  - EAP-7: Wrong privileges on multiple property files (CVE-2017-12167)

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
117314	RHEL 7 : Single Sign-On (RHSA-2017:0873)	Nessus	Red Hat Local Security Checks	medium
117313	RHEL 6 : Red Hat Single Sign-On 7.1 update on RHEL 6 (Moderate) (RHSA-2017:0872)	Nessus	Red Hat Local Security Checks	medium
112256	RHEL 6 / 7 : JBoss EAP (RHSA-2017:0834)	Nessus	Red Hat Local Security Checks	high
112255	RHEL 7 : JBoss EAP (RHSA-2017:0832)	Nessus	Red Hat Local Security Checks	high
112254	RHEL 6 : JBoss EAP (RHSA-2017:0831)	Nessus	Red Hat Local Security Checks	high
105269	RHEL 7 : Red Hat JBoss Enterprise Application Platform 7.1.0 (RHSA-2017:3455)	Nessus	Red Hat Local Security Checks	critical
105268	RHEL 6 : JBoss EAP (RHSA-2017:3454)	Nessus	Red Hat Local Security Checks	critical
105252	RHEL 6 / 7 : eap7-jboss-ec2-eap (RHSA-2017:3458)	Nessus	Red Hat Local Security Checks	critical

Detections

Analytics

CVE-2016-9589

high

Tenable Plugins

medium

medium

high

high

high

critical

critical

critical