CVE-2021-38949 : Exploit Details and Defense Strategies

IBM MQ versions 7.5, 8.0, 9.0 LTS, 9.1 CD, and 9.1 LTS by IBM are affected by a vulnerability that allows local users to access user credentials stored in plain text. This CVE was published on November 15, 2021.

Understanding CVE-2021-38949

This section will provide insights into the nature and impact of the CVE-2021-38949 vulnerability.

What is CVE-2021-38949?

CVE-2021-38949 affects IBM MQ versions 7.5, 8.0, 9.0 LTS, 9.1 CD, and 9.1 LTS, where user credentials are stored insecurely in clear text format, enabling unauthorized access by local users.

The Impact of CVE-2021-38949

The impact of this vulnerability is rated as MEDIUM, with a base score of 6.2. The confidentiality impact is HIGH as it allows unauthorized access to sensitive user credentials.

Technical Details of CVE-2021-38949

This section will outline the technical specifics of the CVE-2021-38949 vulnerability.

Vulnerability Description

The vulnerability in IBM MQ allows local users to read user credentials stored in plain clear text format, potentially leading to unauthorized access.

Affected Systems and Versions

IBM MQ versions 7.5, 8.0, 9.0 LTS, 9.1 CD, and 9.1 LTS are affected by this vulnerability.

Exploitation Mechanism

The exploit involves a local user gaining access to the system and reading the plaintext stored credentials to compromise sensitive data.

Mitigation and Prevention

This section will provide guidance on mitigating and preventing the CVE-2021-38949 vulnerability.

Immediate Steps to Take

Users are advised to apply the official fix provided by IBM to address the vulnerability and secure user credentials.

Long-Term Security Practices

Implement encryption measures for storing sensitive data and regularly review and update security protocols to prevent unauthorized access.

Patching and Updates

Ensure that IBM MQ versions 7.5, 8.0, 9.0 LTS, 9.1 CD, and 9.1 LTS are updated with the latest patches and security updates to mitigate the risk of credential exposure.