SB2024092073 - Multiple vulnerabilities in Red Hat Single Sign-On 7.6
Published: September 20, 2024 Updated: October 11, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Improper verification of cryptographic signature (CVE-ID: CVE-2024-8698)
The vulnerability allows a remote user to escalate privileges within the application.
The vulnerability exists due to improper validation of SAML signature within the Keycloak XMLSignatureUtil class. The method incorrectly determines whether a SAML signature is for the full document or only for specific assertions based on the position of the signature in the XML document, rather than the Reference element used to specify the signed element. A remote user can create crafted responses that bypass the validation, potentially leading to privilege escalation or impersonation attacks.
2) Open redirect (CVE-ID: CVE-2024-8883)
The vulnerability allows a remote attacker to redirect victims to arbitrary URL.
The vulnerability exists due to a misconfiguration when handling redirects. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain if a 'Valid Redirect URI' is set to http://localhost or http://127.0.0.1
Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.
Remediation
Install update from vendor's website.