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CVE-2019-3875

Status Candidate

Overview

A vulnerability was found in keycloak before 6.0.2. The X.509 authenticator supports the verification of client certificates through the CRL, where the CRL list can be obtained from the URL provided in the certificate itself (CDP) or through the separately configured path. The CRL are often available over the network through unsecured protocols ('http' or 'ldap') and hence the caller should verify the signature and possibly the certification path. Keycloak currently doesn't validate signatures on CRL, which can result in a possibility of various attacks like man-in-the-middle.

Related Files

Red Hat Security Advisory 2019-1456-01
Posted Jun 11, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1456-01 - Red Hat Single Sign-On 7.3 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. This release of Red Hat Single Sign-On 7.3.2 serves as a replacement for Red Hat Single Sign-On 7.3.1, and includes bug fixes and enhancements, which are documented in the Release Notes document. Issues addressed include code execution, cross site scripting, and denial of service vulnerabilities.

tags | advisory, web, denial of service, vulnerability, code execution, xss
systems | linux, redhat
advisories | CVE-2016-10735, CVE-2018-14041, CVE-2018-20676, CVE-2018-20677, CVE-2019-10157, CVE-2019-11358, CVE-2019-3872, CVE-2019-3873, CVE-2019-3875, CVE-2019-3888, CVE-2019-8331
MD5 | 312072aa48b6ca353c869b99f8e578dd
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