CVE-2018-10894

keycloak: auth permitted with expired certs in SAML client

Severity Score

5.4

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

It was found that SAML authentication in Keycloak 3.4.3.Final incorrectly authenticated expired certificates. A malicious user could use this to access unauthorized data or possibly conduct further attacks.

Se ha descubierto que la autenticación SAML en Keycloak 3.4.3.Final autenticaba incorrectamente los certificados caducados. Un usuario malicioso podría aprovecharse de esto para acceder a datos no autorizados o, posiblemente, llevar a cabo más ataques.

Red Hat OpenShift Application Runtimes provides an application platform that reduces the complexity of developing and operating applications for OpenShift as a containerized platform. This release of RHOAR Thorntail 2.4.0 serves as a replacement for RHOAR Thorntail 2.2.0, and includes security and bug fixes and enhancements. For further information, refer to the release notes linked to in the References section. Issues addressed include code execution, denial of service, deserialization, and traversal vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-05-09 CVE Reserved
2018-08-01 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation
CWE-345: Insufficient Verification of Data Authenticity

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10894	2019-10-09

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:3592	2019-10-09
https://access.redhat.com/errata/RHSA-2018:3593	2019-10-09
https://access.redhat.com/errata/RHSA-2018:3595	2019-10-09
https://access.redhat.com/errata/RHSA-2019:0877	2019-10-09
https://access.redhat.com/security/cve/CVE-2018-10894	2019-04-24
https://bugzilla.redhat.com/show_bug.cgi?id=1599434	2019-04-24

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"	Single Sign-on Search vendor "Redhat" for product "Single Sign-on"	7.2 Search vendor "Redhat" for product "Single Sign-on" and version "7.2"	-	Affected	in	Redhat Search vendor "Redhat"	Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"	6.0 Search vendor "Redhat" for product "Enterprise Linux" and version "6.0"	-	Safe
Redhat Search vendor "Redhat"	Single Sign-on Search vendor "Redhat" for product "Single Sign-on"	7.2 Search vendor "Redhat" for product "Single Sign-on" and version "7.2"	-	Affected	in	Redhat Search vendor "Redhat"	Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"	7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"	-	Safe
Redhat Search vendor "Redhat"		Keycloak Search vendor "Redhat" for product "Keycloak"				3.4.3 Search vendor "Redhat" for product "Keycloak" and version "3.4.3"		-		Affected