CVE-2019-11271 Explained : Impact and Mitigation

Cloud Foundry BOSH 270.x versions prior to v270.1.1 are vulnerable to a flaw that allows an authenticated malicious user to access and read sensitive credentials from a BOSH manifest.

Understanding CVE-2019-11271

Versions prior to v270.1.1 of Cloud Foundry BOSH 270.x suffer from a vulnerability related to the incorrect redaction of credentials by the BOSH Director when configured to use a MySQL database.

What is CVE-2019-11271?

The vulnerability in CVE-2019-11271 allows an authenticated malicious user with local access to exploit the flaw and access sensitive credentials present in a BOSH manifest.

The Impact of CVE-2019-11271

CVSS Base Score: 6 (Medium Severity)
Attack Vector: Local
Confidentiality Impact: High
Privileges Required: High
Scope: Changed
Vulnerability Type: Information Exposure Through Log Files (CWE-532)

Technical Details of CVE-2019-11271

Cloud Foundry BOSH 270.x versions prior to v270.1.1 are affected by the following:

Vulnerability Description

The BOSH Director fails to properly redact credentials when using a MySQL database, allowing unauthorized access to sensitive information.

Affected Systems and Versions

Product: BOSH
Vendor: Cloud Foundry
Affected Version: 270
Version Type: Custom
Versions Affected: < v270.1.1

Exploitation Mechanism

An authenticated malicious user with local access can exploit the vulnerability to read credentials from a BOSH manifest.

Mitigation and Prevention

To address CVE-2019-11271, consider the following steps:

Immediate Steps to Take

Upgrade to version v270.1.1 or later to mitigate the vulnerability.
Restrict access to BOSH manifests to authorized personnel only.

Long-Term Security Practices

Regularly review and update access controls for BOSH deployments.
Monitor and audit access to BOSH manifests to detect unauthorized activities.

Patching and Updates

Apply security patches and updates provided by Cloud Foundry to address the vulnerability.