CVE-2019-14823 : Security Advisory and Response

An issue in the implementation of the 'Leaf and Chain' OCSP policy in JSS' CryptoManager versions after 4.4.6, 4.5.3, 4.6.0 could lead to authentication failures and potential security vulnerabilities.

Understanding CVE-2019-14823

This CVE involves a vulnerability in the way the 'Leaf and Chain' OCSP policy is implemented in JSS' CryptoManager versions post 4.4.6, 4.5.3, 4.6.0.

What is CVE-2019-14823?

The vulnerability allows the root certificate of a certificate chain to be trusted without explicit confirmation, potentially leading to inadequate chain authentication and susceptibility to attacks like Man in the Middle.

The Impact of CVE-2019-14823

The vulnerability poses a medium severity risk with high confidentiality and integrity impacts. It requires user interaction and has a high attack complexity, making it a significant security concern.

Technical Details of CVE-2019-14823

This section delves into the technical aspects of the CVE.

Vulnerability Description

The issue lies in the flawed implementation of the 'Leaf and Chain' OCSP policy, allowing the root certificate to be trusted without explicit confirmation, leading to authentication failures.

Affected Systems and Versions

Product: JSS
Vendor: Dogtag
Versions Affected: >= 4.4.6, >= 4.5.3, >= 4.6.0

Exploitation Mechanism

Attack Vector: Network
Attack Complexity: High
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: None

Mitigation and Prevention

Protecting systems from CVE-2019-14823 is crucial to maintaining security.

Immediate Steps to Take

Apply vendor-supplied patches promptly
Monitor vendor advisories for updates
Implement network security measures to detect and prevent potential attacks

Long-Term Security Practices

Regularly update and patch software to address vulnerabilities
Conduct security assessments and audits to identify and mitigate risks

Patching and Updates

Refer to vendor advisories for patch availability and installation instructions