Multiple vulnerabilities in Red Hat build of Keycloak 22.0
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2024-8698 CVE-2024-8883 |
| CWE-ID | CWE-347 CWE-601 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
Red Hat build of Keycloak Server applications / Other server solutions |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Improper verification of cryptographic signature
EUVDB-ID: #VU97621
Risk: Medium
CVSSv4.0: 7.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID: CVE-2024-8698
CWE-ID:
CWE-347 - Improper Verification of Cryptographic Signature
Exploit availability: Yes
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Red Hat build of Keycloak: before 22.0.13
CPE2.3 External linkshttps://access.redhat.com/errata/RHSA-2024:6887
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
2) Open redirect
EUVDB-ID: #VU97622
Risk: Low
CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2024-8883
CWE-ID:
CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Red Hat build of Keycloak: before 22.0.13
CPE2.3 External linkshttps://access.redhat.com/errata/RHSA-2024:6887
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
