Red Hat Keycloak/Single Sign-On 7 Connection URL default permission

Summaryinfo

A vulnerability identified as critical has been detected in Red Hat Keycloak and Single Sign-On 7. The affected element is an unknown function of the component Connection URL Handler. This manipulation causes default permission. The identification of this vulnerability is CVE-2024-5967. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Red Hat Keycloak and Single Sign-On 7 (affected version not known) and classified as problematic. Affected by this vulnerability is some unknown functionality of the component Connection URL Handler. The manipulation with an unknown input leads to a default permission vulnerability. The CWE definition for the vulnerability is CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. As an impact it is known to affect confidentiality. The summary by CVE is:

A vulnerability was found in Keycloak. The LDAP testing endpoint allows changing the Connection URL  independently without re-entering the currently configured LDAP bind credentials. This flaw allows an attacker with admin access (permission manage-realm) to change the LDAP host URL ("Connection URL") to a machine they control. The Keycloak server will connect to the attacker's host and try to authenticate with the configured credentials, thus leaking them to the attacker. As a consequence, an attacker who has compromised the admin console or compromised a user with sufficient privileges can leak domain credentials and attack the domain.

It is possible to read the advisory at access.redhat.com. This vulnerability is known as CVE-2024-5967 since 06/13/2024. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/07/2025). The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2024-2011). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Red Hat

Name

• Keycloak
• Single Sign-On 7

License

• open-source

Website

• Vendor: https://www.redhat.com/

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Be aware that VulDB is the high quality source for vulnerability data.

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