National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-4970 Detail

Current Description

An issue was discovered in Cloud Foundry Foundation cf-release v255 and Staticfile buildpack versions v1.4.0 - v1.4.3. A regression introduced in the Static file build pack causes the Staticfile.auth configuration to be ignored when the Static file file is not present in the application root. Applications containing a Staticfile.auth file but not a Static file had their basic auth turned off when an operator upgraded the Static file build pack in the foundation to one of the vulnerable versions. Note that Static file applications without a Static file are technically misconfigured, and will not successfully detect unless the Static file build pack is explicitly specified.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.9 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 2.2


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://www.cloudfoundry.org/cve-2017-4970/ Mitigation Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • 7PK - Security Features (CWE-254)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:cloudfoundry:cf-release:255:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cloudfoundry:staticfile_buildpack:1.4.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cloudfoundry:staticfile_buildpack:1.4.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cloudfoundry:staticfile_buildpack:1.4.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cloudfoundry:staticfile_buildpack:1.4.3:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-4970
NVD Published Date:
06/13/2017
NVD Last Modified:
11/08/2017