LiveActive security incident?Get immediate response
CVE Record

CVE-2016-6658: Applications in cf-release before 245 can be configured and pushed with a user-provided custom buildpack us...

Applications in cf-release before 245 can be configured and pushed with a user-provided custom buildpack using a URL pointing to the buildpack. Although it is not recommended, a user can specify a credential in the URL (basic auth or OAuth) to access the buildpack through the CLI. For example, the user could include a GitHub username and password in the URL to access a private repo. Because the URL to access the buildpack is stored unencrypted, an operator with privileged access to the Cloud Controller database could view these credentials.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue could expose credentials that users embedded in custom buildpack URLs on older cf-release deployments. The credentials were stored unencrypted in the Cloud Controller database, so a privileged operator with database access could read them.

Executive priority

Treat this as a targeted credential exposure risk, not a confirmed mass-exploitation event. Prioritize legacy Cloud Foundry environments and credential rotation if private repository credentials may have been embedded in buildpack URLs.

Technical view

Applications in cf-release before version 245 could be pushed with user-provided custom buildpack URLs containing basic auth or OAuth credentials. The full URL was stored unencrypted, exposing those credentials to anyone with privileged Cloud Controller database access.

Likely exposure

Exposure is limited to cf-release deployments before 245 where users supplied credential-bearing custom buildpack URLs, especially for private repositories. Public internet exposure is not described in the sources.

Exploitation context

The source bundle does not report active exploitation, and the CVE is not marked KEV. Abuse would require privileged access to the Cloud Controller database and relevant stored buildpack URL data.

Researcher notes

The affected product metadata in the provided bundle is incomplete, but the description specifically names cf-release before 245 and Cloud Controller database storage. No CVSS, CWE, exploit evidence, or detailed vendor remediation text is included.

Mitigation direction

  • Upgrade affected cf-release deployments to version 245 or later where applicable.
  • Check Pivotal or Cloud Foundry vendor guidance for environment-specific remediation.
  • Remove credentials from custom buildpack URLs.
  • Rotate credentials that may have been stored in buildpack URLs.
  • Restrict and audit privileged Cloud Controller database access.

Validation and detection

  • Inventory cf-release versions and identify deployments before version 245.
  • Review application metadata for custom buildpack URLs containing credentials.
  • Confirm credential-bearing URLs are no longer stored or used.
  • Verify exposed credentials have been rotated.
  • Review Cloud Controller database access logs for unusual privileged access.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2016-6658 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.