CVE Vulnerability

CVE-2019-3875

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.

5.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

4.8 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3875 Issue Tracking Patch
http://www.securityfocus.com/bid/108748 Third Party Advisory VDB Entry
Configurations

Configuration 1

cpe:2.3:a:redhat:single_sign-on:7.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
Information

Published : 2019-06-12 02:29

Updated : 2019-10-09 11:49

NVD link : CVE-2019-3875

Mitre link : CVE-2019-3875

Products Affected
No products.
CWE
CWE-295

Improper Certificate Validation