#VU47487 Protection Mechanism Failure in Keycloak - CVE-2020-1728

Vulnerability identifier: #VU47487

Vulnerability risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-1728

CWE-ID: CWE-693

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 bypass expected security restrictions.

The vulnerability exists due to the Admin Console area in Keycloak is completely missing general HTTP security headers in HTTP-responses. This does not directly lead to a security issue, yet it might aid attackers in their efforts to exploit other problems. The flaws unnecessarily make the servers more prone to Clickjacking, channel downgrade attacks and other similar client-based attack vectors.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Keycloak: 0.6.0, 1.0 - 1.9.8, 2.0.0.CR1 - 2.5.10, 3.0.0.CR1 - 3.4.3, 4.0 CR1 - 4.8.3, 5.0.0, 6.0.0 - 6.4.0, 7.0.0 - 7.1.0, 8.0.0 - 8.0.2, 9.0.0 - 9.0.3

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1728

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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.