CVE-2020-36308 : Security Advisory and Response

Redmine before 4.0.7 and 4.1.x before 4.1.1 allows attackers to discover the subject of a non-visible issue by performing a CSV export and reading time entries.

Understanding CVE-2020-36308

This CVE identifies a vulnerability in Redmine that could potentially lead to the exposure of non-visible issue subjects.

What is CVE-2020-36308?

CVE-2020-36308 is a security flaw in Redmine versions prior to 4.0.7 and 4.1.x before 4.1.1 that enables malicious actors to uncover the subject of hidden issues through specific actions.

The Impact of CVE-2020-36308

The vulnerability allows attackers to gain unauthorized access to sensitive information, potentially compromising the confidentiality of non-visible issue details within Redmine.

Technical Details of CVE-2020-36308

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The flaw in Redmine versions before 4.0.7 and 4.1.x before 4.1.1 permits threat actors to reveal the subject of concealed issues by executing a CSV export and reviewing time entries.

Affected Systems and Versions

Redmine versions before 4.0.7
Redmine 4.1.x versions before 4.1.1

Exploitation Mechanism

Attackers exploit the vulnerability by exporting data to a CSV file and analyzing time entries to uncover the subject of non-visible issues.

Mitigation and Prevention

Protecting systems from CVE-2020-36308 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update Redmine to version 4.0.7 or 4.1.1, which contain patches addressing the vulnerability.
Monitor system logs for any suspicious activities that may indicate exploitation attempts.

Long-Term Security Practices

Regularly review and update security configurations to prevent similar vulnerabilities.
Educate users on secure data handling practices to minimize the risk of unauthorized access.

Patching and Updates

Apply security patches provided by Redmine promptly to mitigate the CVE-2020-36308 vulnerability.