VDB-87915 · CVE-2016-4911 · BID 90728

OpenStack Identity up to 9.0.0 mitika Fernet Token Provider access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in OpenStack Identity up to 9.0.0 mitika. This vulnerability affects unknown code of the component Fernet Token Provider. Performing a manipulation results in access control. This vulnerability is known as CVE-2016-4911. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in OpenStack Identity up to 9.0.0 mitika (Cloud Software). This affects some unknown functionality of the component Fernet Token Provider. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was published 06/13/2016 by Morgan (Website). It is possible to read the advisory at security.openstack.org. This vulnerability is uniquely identified as CVE-2016-4911 since 05/17/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. A authentication is required for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 9.0.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 90728†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Identity 9.0.1

Timelineinfo

05/17/2016 🔍
05/17/2016 +0 days 🔍
06/13/2016 +27 days 🔍
06/13/2016 +0 days 🔍
06/14/2016 +1 days 🔍
01/20/2019 +950 days 🔍

Sourcesinfo

Vendor: openstack.org

Advisory: security.openstack.org
Researcher: Morgan
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4911 (🔍)
GCVE (CVE): GCVE-0-2016-4911
GCVE (VulDB): GCVE-100-87915
SecurityFocus: 90728 - OpenStack Keystone CVE-2016-4911 Security Bypass Vulnerability

Entryinfo

Created: 06/14/2016 09:13
Updated: 01/20/2019 13:22
Changes: 06/14/2016 09:13 (58), 01/20/2019 13:22 (6)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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