What is the CVSS score of CVE-2016-4911?

CVE-2016-4911 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.3%.

Is there a patch available for CVE-2016-4911?

Yes, a patch is available for CVE-2016-4911. Update the affected software to the latest version immediately.

Openstack Identity CVE-2016-4911

MEDIUM

Improper Access Control (CWE-284)

2016-06-13 cve@mitre.org

Authentication Bypass Openstack Identity

4.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.3 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Jun 13, 2016 - 14:59 cve.org

MEDIUM 4.3

DescriptionCVE.org

The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token.

AnalysisAI

Technical ContextAI

This vulnerability is classified under CWE-284. The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token. Affected products include: Keystone Openstack Identity. Version information: before 9.0.1.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.