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By the Year

In 2021 there have been 9 vulnerabilities in Red Hat Single Sign On with an average score of 5.2 out of ten. Last year Single Sign On had 18 security vulnerabilities published. Right now, Single Sign On is on track to have less security vulnerabilities in 2021 than it did last year. Last year, the average CVE base score was greater by 1.58

Year Vulnerabilities Average Score
2021 9 5.20
2020 18 6.78
2019 11 6.96
2018 3 6.13

It may take a day or so for new Single Sign On vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.

Recent Red Hat Single Sign On Security Vulnerabilities

A flaw was found in keycloak-model-infinispan in keycloak versions before 14.0.0 where authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly

CVE-2021-3637 7.5 - High - July 09, 2021

A flaw was found in keycloak-model-infinispan in keycloak versions before 14.0.0 where authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly which could lead to a DoS attack.

Allocation of Resources Without Limits or Throttling

A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible

CVE-2021-3424 5.3 - Medium - June 01, 2021

A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.

authentification

A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API

CVE-2020-27826 4.2 - Medium - May 28, 2021

A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application.

Execution with Unnecessary Privileges

An insecure modification flaw in the /etc/passwd file was found in the redhat-sso-7 container

CVE-2020-10695 7.8 - High - May 26, 2021

An insecure modification flaw in the /etc/passwd file was found in the redhat-sso-7 container. An attacker with access to the container can use this flaw to modify the /etc/passwd and escalate their privileges.

Incorrect Privilege Assignment

A flaw was found in Keycloak 12.0.0 where re-authentication does not occur while updating the password

CVE-2021-20262 6.8 - Medium - March 09, 2021

A flaw was found in Keycloak 12.0.0 where re-authentication does not occur while updating the password. This flaw allows an attacker to take over an account if they can obtain temporary, physical access to a users browser. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Missing Authentication for Critical Function

A flaw was found in keycloak in versions prior to 13.0.0

CVE-2020-27838 6.5 - Medium - March 08, 2021

A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients (like client secret) without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL later. The highest threat from this vulnerability is to data confidentiality.

authentification

A flaw was found in Keycloak 7.0.1

CVE-2020-1717 2.7 - Low - February 11, 2021

A flaw was found in Keycloak 7.0.1. A logged in user can do an account email enumeration attack.

Generation of Error Message Containing Sensitive Information

A vulnerability was found in keycloak in the way that the OIDC logout endpoint does not have CSRF protection

CVE-2020-10734 3.3 - Low - February 11, 2021

A vulnerability was found in keycloak in the way that the OIDC logout endpoint does not have CSRF protection. Versions shipped with Red Hat Fuse 7, Red Hat Single Sign-on 7, and Red Hat Openshift Application Runtimes are believed to be vulnerable.

Session Riding

The "Test Connection" available in v7.x of the Red Hat Single Sign On application console can permit an authorized user to cause SMTP connections to be attempted to arbitrary hosts and ports of the user's choosing, and originating

CVE-2020-14341 2.7 - Low - January 12, 2021

The "Test Connection" available in v7.x of the Red Hat Single Sign On application console can permit an authorized user to cause SMTP connections to be attempted to arbitrary hosts and ports of the user's choosing, and originating from the RHSSO installation. By observing differences in the timings of these scans, an attacker may glean information about hosts and ports which they do not have access to scan directly.

Covert Timing Channel

A memory leak flaw was found in WildFly in all versions up to 21.0.0.Final, where host-controller tries to reconnect in a loop, generating new connections

CVE-2020-25689 6.5 - Medium - November 02, 2020

A memory leak flaw was found in WildFly in all versions up to 21.0.0.Final, where host-controller tries to reconnect in a loop, generating new connections which are not properly closed while not able to connect to domain-controller. This flaw allows an attacker to cause an Out of memory (OOM) issue, leading to a denial of service. The highest threat from this vulnerability is to system availability.

Resource Exhaustion

A flaw was found in JBoss EAP

CVE-2020-14299 6.5 - Medium - October 16, 2020

A flaw was found in JBoss EAP, where the authentication configuration is set-up using a legacy SecurityRealm, to delegate to a legacy PicketBox SecurityDomain, and then reloaded to admin-only mode. This flaw allows an attacker to perform a complete authentication bypass by using an arbitrary user and password. The highest threat to vulnerability is to system availability.

authentification

A memory leak flaw was found in WildFly OpenSSL in versions prior to 1.1.3.Final, where it removes an HTTP session

CVE-2020-25644 7.5 - High - October 06, 2020

A memory leak flaw was found in WildFly OpenSSL in versions prior to 1.1.3.Final, where it removes an HTTP session. It may allow the attacker to cause OOM leading to a denial of service. The highest threat from this vulnerability is to system availability.

Resource Exhaustion

A flaw was found in Keycloak's data filter, in version 10.0.1, where it allowed the processing of data URLs in some circumstances

CVE-2020-10748 6.1 - Medium - September 16, 2020

A flaw was found in Keycloak's data filter, in version 10.0.1, where it allowed the processing of data URLs in some circumstances. This flaw allows an attacker to conduct cross-site scripting or further attacks.

XSS

A vulnerability was found in Keycloak before 11.0.1 where DoS attack is possible by sending twenty requests simultaneously to the specified keycloak server, all with a Content-Length header value

CVE-2020-10758 7.5 - High - September 16, 2020

A vulnerability was found in Keycloak before 11.0.1 where DoS attack is possible by sending twenty requests simultaneously to the specified keycloak server, all with a Content-Length header value that exceeds the actual byte count of the request body.

Allocation of Resources Without Limits or Throttling

The issue appears to be

CVE-2020-1710 5.3 - Medium - September 16, 2020

The issue appears to be that JBoss EAP 6.4.21 does not parse the field-name in accordance to RFC7230[1] as it returns a 200 instead of a 400.

A vulnerability was found in Wildfly's Enterprise Java Beans (EJB) versions shipped with Red Hat JBoss EAP 7, where SessionOpenInvocations are never removed

CVE-2020-14307 6.5 - Medium - July 24, 2020

A vulnerability was found in Wildfly's Enterprise Java Beans (EJB) versions shipped with Red Hat JBoss EAP 7, where SessionOpenInvocations are never removed from the remote InvocationTracker after a response is received in the EJB Client, as well as the server. This flaw allows an attacker to craft a denial of service attack to make the service unavailable.

Resource Exhaustion

A flaw was discovered in Wildfly's EJB Client as shipped with Red Hat JBoss EAP 7, where some specific EJB transaction objects may get accumulated over the time and

CVE-2020-14297 6.5 - Medium - July 24, 2020

A flaw was discovered in Wildfly's EJB Client as shipped with Red Hat JBoss EAP 7, where some specific EJB transaction objects may get accumulated over the time and can cause services to slow down and eventaully unavailable. An attacker can take advantage and cause denial of service attack and make services unavailable.

Resource Exhaustion

A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks

CVE-2020-1714 8.8 - High - May 13, 2020

A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution.

Improper Input Validation

A flaw was found in Keycloak in versions before 9.0.2

CVE-2020-1724 4.3 - Medium - May 11, 2020

A flaw was found in Keycloak in versions before 9.0.2. This flaw allows a malicious user that is currently logged in, to see the personal information of a previously logged out user in the account manager section.

Insufficient Session Expiration

A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by truncating the path after semicolon

CVE-2020-1757 8.1 - High - April 21, 2020

A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by truncating the path after semicolon which may lead to an application mapping resulting in the security bypass.

Improper Input Validation

A flaw was found when an OpenSSL security provider is used with Wildfly

CVE-2019-14887 9.1 - Critical - March 16, 2020

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption. This could lead to a leak of the data being passed over the network. Wildfly version 7.2.0.GA, 7.2.3.GA and 7.2.5.CR2 are believed to be vulnerable.

Inadequate Encryption Strength

It was found in all keycloak versions before 9.0.0

CVE-2020-1697 5.4 - Medium - February 10, 2020

It was found in all keycloak versions before 9.0.0 that links to external applications (Application Links) in the admin console are not validated properly and could allow Stored XSS attacks. An authed malicious user could create URLs to trick users in other realms, and possibly conduct further attacks.

XSS

A flaw was found in the JBoss EAP Vault system in all versions before 7.2.6.GA

CVE-2019-14885 4.3 - Medium - January 23, 2020

A flaw was found in the JBoss EAP Vault system in all versions before 7.2.6.GA. Confidential information of the system property's security attribute value is revealed in the JBoss EAP log file when executing a JBoss CLI 'reload' command. This flaw can lead to the exposure of confidential information.

Information Disclosure

A vulnerability was found in the Undertow HTTP server in versions before 2.0.28.SP1 when listening on HTTPS

CVE-2019-14888 7.5 - High - January 23, 2020

A vulnerability was found in the Undertow HTTP server in versions before 2.0.28.SP1 when listening on HTTPS. An attacker can target the HTTPS port to carry out a Denial Of Service (DOS) to make the service unavailable on SSL.

Resource Exhaustion

It was found that keycloak before version 8.0.0 exposes internal adapter endpoints in org.keycloak.constants.AdapterConstants, which can be invoked

CVE-2019-14820 4.3 - Medium - January 08, 2020

It was found that keycloak before version 8.0.0 exposes internal adapter endpoints in org.keycloak.constants.AdapterConstants, which can be invoked via a specially-crafted URL. This vulnerability could allow an attacker to access unauthorized information.

Information Disclosure

A flaw was found in Wildfly Security Manager, running under JDK 11 or 8, that authorized requests for any requester

CVE-2019-14843 8.8 - High - January 07, 2020

A flaw was found in Wildfly Security Manager, running under JDK 11 or 8, that authorized requests for any requester. This flaw could be used by a malicious app deployed on the app server to access unauthorized information and possibly conduct further attacks. Versions shipped with Red Hat Jboss EAP 7 and Red Hat SSO 7 are vulnerable to this issue.

AuthZ

A flaw was found in keycloack before version 8.0.0

CVE-2019-14837 9.1 - Critical - January 07, 2020

A flaw was found in keycloack before version 8.0.0. The owner of 'placeholder.org' domain can setup mail server on this domain and knowing only name of a client can reset password and then log in. For example, for client name 'test' the email address will be 'service-account-test@placeholder.org'.

Use of Hard-coded Credentials

A vulnerability was found in Hibernate-Validator

CVE-2019-10219 6.1 - Medium - November 08, 2019

A vulnerability was found in Hibernate-Validator. The SafeHtml validator annotation fails to properly sanitize payloads consisting of potentially malicious code in HTML comments and instructions. This vulnerability can result in an XSS attack.

XSS

A flaw was found in, all under 2.0.20, in the Undertow DEBUG log for io.undertow.request.security

CVE-2019-10212 9.8 - Critical - October 02, 2019

A flaw was found in, all under 2.0.20, in the Undertow DEBUG log for io.undertow.request.security. If enabled, an attacker could abuse this flaw to obtain the user's credentials from the log files.

Insertion of Sensitive Information into Log File

It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures

CVE-2019-10201 8.1 - High - August 14, 2019

It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures. If an attacker modifies the SAML Response and removes the <Signature> sections, the message is still accepted, and the message can be modified. An attacker could use this flaw to impersonate other users and gain access to sensitive information.

authentification

undertow before version 2.0.23.Final is vulnerable to an information leak issue

CVE-2019-10184 7.5 - High - July 25, 2019

undertow before version 2.0.23.Final is vulnerable to an information leak issue. Web apps may have their directory structures predicted through requests without trailing slashes via the api.

Information Disclosure

It was found that a SAMLRequest containing a script could be processed by Picketlink versions shipped in Jboss Application Platform 7.2.x and 7.1.x

CVE-2019-3872 5.4 - Medium - June 12, 2019

It was found that a SAMLRequest containing a script could be processed by Picketlink versions shipped in Jboss Application Platform 7.2.x and 7.1.x. An attacker could use this to send a malicious script to achieve cross-site scripting and obtain unauthorized information or conduct further attacks.

XSS

It was found that Keycloak's Node.js adapter before version 4.8.3 did not properly verify the web token received

CVE-2019-10157 5.5 - Medium - June 12, 2019

It was found that Keycloak's Node.js adapter before version 4.8.3 did not properly verify the web token received from the server in its backchannel logout . An attacker with local access could use this to construct a malicious web token setting an NBF parameter that could prevent user access indefinitely.

authentification

A vulnerability was found in keycloak before 6.0.2

CVE-2019-3875 4.8 - Medium - June 12, 2019

A vulnerability was found in keycloak before 6.0.2. The X.509 authenticator supports the verification of client certificates through the CRL, where the CRL list can be obtained from the URL provided in the certificate itself (CDP) or through the separately configured path. The CRL are often available over the network through unsecured protocols ('http' or 'ldap') and hence the caller should verify the signature and possibly the certification path. Keycloak currently doesn't validate signatures on CRL, which can result in a possibility of various attacks like man-in-the-middle.

Improper Certificate Validation

It was found that Picketlink as shipped with Jboss Enterprise Application Platform 7.2

CVE-2019-3873 9 - Critical - June 12, 2019

It was found that Picketlink as shipped with Jboss Enterprise Application Platform 7.2 would accept an xinclude parameter in SAMLresponse XML. An attacker could use this flaw to send a URL to achieve cross-site scripting or possibly conduct further attacks.

XSS

A cross-site scripting (XSS) vulnerability was found in the JBoss Management Console versions before 7.1.6.CR1, 7.1.6.GA

CVE-2018-10934 5.4 - Medium - March 27, 2019

A cross-site scripting (XSS) vulnerability was found in the JBoss Management Console versions before 7.1.6.CR1, 7.1.6.GA. Users with roles that can create objects in the application can exploit this to attack other privileged users.

XSS

An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6

CVE-2018-12023 7.5 - High - March 21, 2019

An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6. When Default Typing is enabled (either globally or for a specific property), the service has the Oracle JDBC jar in the classpath, and an attacker can provide an LDAP service to access, it is possible to make the service execute a malicious payload.

Marshaling, Unmarshaling

An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6

CVE-2018-12022 7.5 - High - March 21, 2019

An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6. When Default Typing is enabled (either globally or for a specific property), the service has the Jodd-db jar (for database access for the Jodd framework) in the classpath, and an attacker can provide an LDAP service to access, it is possible to make the service execute a malicious payload.

Marshaling, Unmarshaling

A flaw was found in Keycloak 4.2.1.Final, 4.3.0.Final

CVE-2018-14657 8.1 - High - November 13, 2018

A flaw was found in Keycloak 4.2.1.Final, 4.3.0.Final. When TOPT enabled, an improper implementation of the Brute Force detection algorithm will not enforce its protection measures.

Improper Restriction of Excessive Authentication Attempts

A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final

CVE-2018-14655 5.4 - Medium - November 13, 2018

A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login.

XSS

keycloak before version 4.0.0.final is vulnerable to a infinite loop in session replacement

CVE-2018-10912 4.9 - Medium - July 23, 2018

keycloak before version 4.0.0.final is vulnerable to a infinite loop in session replacement. A Keycloak cluster with multiple nodes could mishandle an expired session replacement and lead to an infinite loop. A malicious authenticated user could use this flaw to achieve Denial of Service on the server.

Infinite Loop

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