OpenStack Identity 16.04 Permission Request access control

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenStack Identity 16.04. It has been declared as critical. This vulnerability affects unknown code of the component Permission Handler. Executing a manipulation as part of Request can lead to access control. This vulnerability is registered as CVE-2017-2673. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in OpenStack Identity 16.04 (Cloud Software). This vulnerability affects some unknown processing of the component Permission Handler. The manipulation as part of a Request leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An authorization-check flaw was discovered in federation configurations of the OpenStack Identity service (keystone). An authenticated federated user could request permissions to a project and unintentionally be granted all related roles including administrative roles.

The bug was discovered 06/28/2017. The weakness was published 07/19/2018 as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability was named CVE-2017-2673 since 12/01/2016. The attack can be initiated remotely. Required for exploitation is a single authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 105 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103811 (Ubuntu 16.04 LTS : keystone vulnerability (USN-3448-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196939 (Ubuntu Security Notification for Keystone Vulnerability (USN-3448-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103811) and SecurityFocus (BID 98032†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 7.2
NVD Vector: 🔍

CNA Base Score: 6.8
CNA Vector (Red Hat, Inc.): 🔍

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-264
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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Nessus ID: 103811
Nessus Name: Ubuntu 16.04 LTS : keystone vulnerability (USN-3448-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for keystone USN-3448-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/01/2016 🔍
04/25/2017 +145 days 🔍
06/28/2017 +64 days 🔍
10/11/2017 +105 days 🔍
10/12/2017 +1 days 🔍
07/19/2018 +279 days 🔍
07/19/2018 +0 days 🔍
07/19/2018 +0 days 🔍
04/18/2023 +1734 days 🔍

Sourcesinfo

Advisory: USN-3448-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2673 (🔍)
GCVE (CVE): GCVE-0-2017-2673
GCVE (VulDB): GCVE-100-121960
SecurityFocus: 98032 - OpenStack Keystone CVE-2017-2673 Security Bypass Vulnerability

Entryinfo

Created: 07/19/2018 19:30
Updated: 04/18/2023 15:26
Changes: 07/19/2018 19:30 (77), 03/08/2020 16:15 (3), 04/18/2023 15:16 (4), 04/18/2023 15:21 (12), 04/18/2023 15:26 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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