National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-3875 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.8 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N (V3.0 legend)
Impact Score: 2.5
Exploitability Score: 2.2


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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

Technical Details

Vulnerability Type (View All)

  • Improper Certificate Validation (CWE-295)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
6.0.2
 cpe:2.3:a:redhat:single_sign-on:7.3:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-3875
NVD Published Date:
06/12/2019
NVD Last Modified:
06/14/2019