CVE-2020-9411 Explained : Impact and Mitigation

TIBCO Managed File Transfer Platform Server for IBM i Authentication Bypass

Understanding CVE-2020-9411

This CVE involves a vulnerability in the file transfer component of TIBCO Managed File Transfer Platform Server for IBM i that allows unauthorized network file transfers, potentially compromising system integrity.

What is CVE-2020-9411?

The vulnerability enables attackers to perform unauthorized network file transfers to and from the affected component's file system, compromising confidentiality, integrity, and availability.

The Impact of CVE-2020-9411

Attackers can read and write any file on the system, affecting confidentiality, integrity, and availability.
The hosting system's critical files may be damaged, impacting system availability.

Technical Details of CVE-2020-9411

The following are technical details of the CVE:

Vulnerability Description

The vulnerability allows unauthorized network file transfers when the 'Require Node Resp' configuration option is set to 'No'.

Affected Systems and Versions

TIBCO Managed File Transfer Platform Server for IBM i: versions 7.1.0 and below, version 8.0.0.

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
Scope: Changed
User Interaction: None
CVSS Score: 10 (Critical)
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Mitigation and Prevention

Steps to address and prevent the vulnerability:

Immediate Steps to Take

Update TIBCO Managed File Transfer Platform Server for IBM i versions 7.1.0 and below to version 7.1.1 or higher.
Update TIBCO Managed File Transfer Platform Server for IBM i version 8.0.0 to version 8.0.1 or higher.

Long-Term Security Practices

Regularly review and update system configurations.
Implement access controls to restrict unauthorized file transfers.

Patching and Updates

Apply patches and updates provided by TIBCO to address the vulnerability.