Cloud Foundry Access Control List access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Cloud Foundry. The impacted element is an unknown function of the component Access Control List. The manipulation leads to access control. This vulnerability is referenced as CVE-2017-8038. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Cloud Foundry (Cloud Software) (affected version unknown) and classified as critical. This issue affects an unknown functionality of the component Access Control List. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Cloud Foundry Foundation Credhub-release version 1.1.0, access control lists (ACLs) enforce whether an authenticated user can perform an operation on a credential. For installations using ACLs, the ACL was bypassed for the CredHub interpolate endpoint, allowing authenticated applications to view any credential within the CredHub installation.

The bug was discovered 07/31/2017. The weakness was published 11/27/2017 (Website). The advisory is shared at cloudfoundry.org. The identification of this vulnerability is CVE-2017-8038 since 04/21/2017. The exploitation is known to be easy. The attack may be initiated remotely. The successful exploitation needs a simple authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 119 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entry is available at VDB-109984. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

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

NVD Base Score: 8.8
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-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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/21/2017 🔍
07/31/2017 +101 days 🔍
11/27/2017 +119 days 🔍
11/27/2017 +0 days 🔍
11/27/2017 +0 days 🔍
12/10/2019 +743 days 🔍

Sourcesinfo

Advisory: cloudfoundry.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8038 (🔍)
GCVE (CVE): GCVE-0-2017-8038
GCVE (VulDB): GCVE-100-109985
See also: 🔍

Entryinfo

Created: 11/27/2017 16:14
Updated: 12/10/2019 17:35
Changes: 11/27/2017 16:14 (56), 12/10/2019 17:35 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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