Improper input validation in Keycloak
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-21971 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Keycloak Server applications / Directory software, identity management |
| Vendor | Keycloak |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Improper input validation
EUVDB-ID: #VU75274
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-21971
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote privileged user to read and manipulate data.
The vulnerability exists due to improper input validation within the Connector/J component in MySQL Connectors. A remote privileged user can exploit this vulnerability to read and manipulate data.
MitigationInstall update from vendor's website.
Vulnerable software versionsKeycloak: 23.0.0 - 23.0.7
External linkshttp://github.com/keycloak/keycloak/releases/tag/24.0.0
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
