CVE-2019-3783 : Security Advisory and Response

Cloud Foundry Stratos before version 2.3.0 has a security vulnerability due to a public default session store secret, potentially allowing unauthorized access to user sessions.

Understanding CVE-2019-3783

Cloud Foundry Stratos versions prior to 2.3.0 deploy with a public default session store secret, posing a risk of session hijacking by malicious actors.

What is CVE-2019-3783?

This CVE refers to the issue in Cloud Foundry Stratos where versions before 2.3.0 have a public default session store secret, enabling potential unauthorized access to user sessions.

The Impact of CVE-2019-3783

The vulnerability allows malicious users to obtain the default session store secret and potentially access and manipulate other users' sessions within Stratos, compromising confidentiality and integrity.

Technical Details of CVE-2019-3783

Cloud Foundry Stratos versions prior to 2.3.0 are affected by a critical security flaw related to session management.

Vulnerability Description

The vulnerability arises from the exposure of a public default session store secret, enabling unauthorized users to potentially access and control other users' sessions.

Affected Systems and Versions

Product: Stratos
Vendor: Cloud Foundry
Versions Affected: All versions prior to 2.3.0

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Network
Privileges Required: None
User Interaction: None
Scope: Changed
CVSS Base Score: 8.7 (High)
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: None

Mitigation and Prevention

Immediate Steps to Take:

Update Cloud Foundry Stratos to version 2.3.0 or newer to mitigate the vulnerability.
Implement strong session management practices and rotate session store secrets regularly. Long-Term Security Practices:
Regularly review and update session management configurations.
Conduct security audits to identify and address any potential vulnerabilities. Patch and Updates:
Apply security patches and updates provided by Cloud Foundry to address the vulnerability.