CVE-2016-6658

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.

Published: 2018-03-29 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2016-6658 is rated Moderate Risk (56/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.31%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-6658

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.60% 0.31% -0.29%
2 2025-03-29 0.31% 0.60% +0.29%
3 2025-03-17 0.31%

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-6658

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.6 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
3.1 5.8 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
8.0 2.9 [email protected]

Weakness enumeration for CVE-2016-6658

Affected software / configurations for CVE-2016-6658

Vendor Product Version Raw CPE
cloudfoundry cf-release < 245 cpe:2.3:a:cloudfoundry:cf-release:*:*:*:*:*:*:*:*
pivotal_software cloud_foundry_elastic_runtime < 1.6.49 cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:*:*:*:*:*:*:*:*
pivotal_software cloud_foundry_elastic_runtime >= 1.7.0, < 1.7.31 cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:*:*:*:*:*:*:*:*
pivotal_software cloud_foundry_elastic_runtime >= 1.8.0, < 1.8.11 cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:*:*:*:*:*:*:*:*

References for CVE-2016-6658

cvelogic Threat Intelligence