#VU88799 Permissions, Privileges, and Access Controls in Keycloak - CVE-2024-1249
Vulnerability identifier: #VU88799
Vulnerability risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Keycloak
Server applications /
Directory software, identity management
Vendor: Keycloak
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to "checkLoginIframe" allows unvalidated cross-origin messages. A remote attacker can send millions of requests in seconds using simple code, significantly impacting the application's availability without proper origin validation for incoming messages.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Keycloak: 22.0.0 - 24.0.2
External links
https://github.com/keycloak/keycloak/security/advisories/GHSA-m6q9-p373-g5q8
https://access.redhat.com/errata/RHSA-2024:1867
https://access.redhat.com/errata/RHSA-2024:1868
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.
