Redhat: >> Keycloak >> 2.5.6 Security Vulnerabilities
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.
CVSS Score
6.1
EPSS Score
0.003
Published
2020-02-10
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.
CVSS Score
4.3
EPSS Score
0.003
Published
2020-01-08
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'.
CVSS Score
9.1
EPSS Score
0.01
Published
2020-01-07
A flaw was found in the Keycloak REST API before version 8.0.0 where it would permit user access from a realm the user was not configured. An authenticated attacker with knowledge of a user id could use this flaw to access unauthorized information or to carry out further attacks.
CVSS Score
5.0
EPSS Score
0.004
Published
2019-10-15
It was found that Keycloak's account console, up to 6.0.1, did not perform adequate header checks in some requests. An attacker could use this flaw to trick an authenticated user into performing operations via request from an untrusted domain.
CVSS Score
4.6
EPSS Score
0.001
Published
2019-08-14
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.
CVSS Score
8.1
EPSS Score
0.001
Published
2019-08-14
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.
CVSS Score
6.5
EPSS Score
0.0
Published
2019-06-12
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.
CVSS Score
4.7
EPSS Score
0.0
Published
2019-06-12
Keycloak up to version 6.0.0 allows the end user token (access or id token JWT) to be used as the session cookie for browser sessions for OIDC. As a result an attacker with access to service provider backend could hijack user’s browser session.
CVSS Score
3.8
EPSS Score
0.003
Published
2019-04-24
The SAML broker consumer endpoint in Keycloak before version 4.6.0.Final ignores expiration conditions on SAML assertions. An attacker can exploit this vulnerability to perform a replay attack.
CVSS Score
6.1
EPSS Score
0.003
Published
2018-11-30