Multiple vulnerabilities in Keycloak



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-11736
CVE-2024-11734
CWE-ID CWE-200
CWE-693
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Keycloak
Server applications / Directory software, identity management

Vendor Keycloak

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU102570

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-11736

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to the application discloses values of environment variables via user-configurable URLs. A remote user can configure backchannel logout URLs or admin URLs with placeholders like ${env.VARNAME} or ${PROPNAME} and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Keycloak: 20.0.0 - 26.0.7

CPE2.3 External links

https://github.com/keycloak/keycloak/security/advisories/GHSA-f4v7-3mww-9gc2


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.

2) Protection Mechanism Failure

EUVDB-ID: #VU102569

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-11734

CWE-ID: CWE-693 - Protection Mechanism Failure

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient implementation of security measures. A remote user with the rights to change realm settings can send a specially crafted HTTP request with newline characters in headers and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Keycloak: 20.0.0 - 26.0.7

CPE2.3 External links

https://github.com/keycloak/keycloak/security/advisories/GHSA-w3g8-r9gw-qrh8


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.



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