CVE-2019-3782 : Vulnerability Insights and Analysis

Cloud Foundry CredHub CLI versions prior to 2.2.1 store authentication credentials from environment variables in a persistent configuration file, potentially exposing sensitive data.

Understanding CVE-2019-3782

This CVE involves the inadvertent storage of authentication credentials in an insecure manner by the CredHub CLI, leading to potential unauthorized access.

What is CVE-2019-3782?

CredHub CLI versions before 2.2.1 save authentication credentials from environment variables in a persistent configuration file.
Unauthorized access to this file can allow a local user to exploit stored credentials, compromising authorized credentials in CredHub.

The Impact of CVE-2019-3782

CVSS Base Score: 6.3 (Medium)
Attack Vector: Local
Confidentiality Impact: Low
Integrity Impact: Low
Availability Impact: Low
Privileges Required: Low
Scope: Changed
User Interaction: None

Technical Details of CVE-2019-3782

The technical aspects of the vulnerability provide insight into its nature and potential risks.

Vulnerability Description

CredHub CLI inadvertently writes authentication credentials provided via environment variables to its persistent config file.

Affected Systems and Versions

Affected Product: CredHub CLI
Vendor: Cloud Foundry
Affected Versions: All versions prior to 2.2.1

Exploitation Mechanism

A local authenticated malicious user with access to the CredHub CLI config file can exploit stored credentials to access and modify authorized credentials in CredHub.

Mitigation and Prevention

Understanding how to mitigate and prevent the exploitation of this vulnerability is crucial for maintaining system security.

Immediate Steps to Take

Upgrade CredHub CLI to version 2.2.1 or later to prevent the storage of credentials in an insecure manner.
Regularly monitor and restrict access to sensitive configuration files to authorized personnel only.

Long-Term Security Practices

Implement secure coding practices to avoid inadvertent storage of sensitive data.
Conduct regular security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security updates and patches released by Cloud Foundry to address vulnerabilities like CVE-2019-3782.