PT-2018-12646 · Red Hat · Keycloak

Laura Pardo · Published 2018-11-13 · Updated 2022-05-13 · CVE-2018-14655

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Keycloak versions 3.4.3.Final through 4.3.0.Final

Description A flaw in Keycloak allows the injection of arbitrary Javascript code via the state-parameter in the authentication URL when using response mode=form post. This enables a cross-site scripting (XSS) attack upon successful login.

Recommendations For Keycloak versions 3.4.3.Final through 4.3.0.Final, consider disabling the use of response mode=form post until a patch is available to prevent the injection of arbitrary Javascript code via the state-parameter. Restrict access to the authentication URL to minimize the risk of exploitation. Avoid using the state-parameter in the affected authentication URL until the issue is resolved.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2018-14655

GHSA-458H-WV48-FQ75

RHSA-2018:3592

RHSA-2018:3593

Affected Products

Keycloak

References · 8

• https://access.redhat.com/errata/RHSA-2018:3593 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-14655 · Security Note
• https://osv.dev/vulnerability/GHSA-458h-wv48-fq75 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3595 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3592 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-14655 · Vendor Advisory
• https://github.com/keycloak/keycloak · Note