CVE-2016-7075

3: API server does not validate client-provided intermediate certificates correctly

Severity Score

8.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

It was found that Kubernetes as used by Openshift Enterprise 3 did not correctly validate X.509 client intermediate certificate host name fields. An attacker could use this flaw to bypass authentication requirements by using a specially crafted X.509 certificate.

Se ha descubierto que Kubernetes, tal y como se emplea en Openshift Enterprise 3, no valida los campos de nombre del host del certificado intermediario de cliente X.509. Un atacante podría emplear este error para omitir los requisitos de autenticación mediante el uso de un certificado X.509 especialmente manipulado

It was found that Kubernetes did not correctly validate X.509 client intermediate certificate host name fields. An attacker could use this flaw to bypass authentication requirements by using a specially crafted X.509 certificate.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Complete

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-08-23 CVE Reserved
2016-10-18 CVE Published
2024-06-25 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (5)

URL	Tag	Source
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7075	Issue Tracking

URL	Date	SRC
https://github.com/kubernetes/kubernetes/issues/34517	2024-08-06

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2016:2064	2023-02-12
https://access.redhat.com/security/cve/CVE-2016-7075	2016-10-17
https://bugzilla.redhat.com/show_bug.cgi?id=1384112	2016-10-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Kubernetes Search vendor "Kubernetes"		Kubernetes Search vendor "Kubernetes" for product "Kubernetes"				-		-		Affected
Redhat Search vendor "Redhat"		Openshift Search vendor "Redhat" for product "Openshift"				3.1 Search vendor "Redhat" for product "Openshift" and version "3.1"		enterprise		Affected
Redhat Search vendor "Redhat"		Openshift Search vendor "Redhat" for product "Openshift"				3.2 Search vendor "Redhat" for product "Openshift" and version "3.2"		enterprise		Affected
Redhat Search vendor "Redhat"		Openshift Search vendor "Redhat" for product "Openshift"				3.3 Search vendor "Redhat" for product "Openshift" and version "3.3"		enterprise		Affected