CVE-2020-11458 : Security Advisory and Response

MISP before version 2.4.124 is affected by a vulnerability that allows administrators to select arbitrary files for ingestion, potentially leaking sensitive information.

Understanding CVE-2020-11458

This CVE involves a flaw in MISP that could lead to the inadvertent exposure of certain strings from selected files.

What is CVE-2020-11458?

MISP version 2.4.124 and earlier allows administrators to choose files for ingestion, resulting in the leakage of specific patterns, such as passwords and GPG key passphrases.

The Impact of CVE-2020-11458

The vulnerability could expose sensitive data like passwords and GPG key passphrases, posing a risk to the confidentiality of this information.

Technical Details of CVE-2020-11458

MISP's vulnerability can be further understood through technical details.

Vulnerability Description

The flaw in app/Model/feed.php in MISP before 2.4.124 enables the selection of files for ingestion, leading to the unintended disclosure of specific strings.

Affected Systems and Versions

Product: MISP
Vendor: N/A
Versions: All versions before 2.4.124

Exploitation Mechanism

The vulnerability allows administrators to choose files for ingestion, potentially leaking sensitive data like passwords and GPG key passphrases.

Mitigation and Prevention

Protecting systems from CVE-2020-11458 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade MISP to version 2.4.124 or later to mitigate the vulnerability.
Monitor and restrict file ingestion permissions to prevent unauthorized access.

Long-Term Security Practices

Regularly review and update access controls to limit exposure of sensitive data.
Educate administrators on secure file handling practices to prevent inadvertent data leaks.

Patching and Updates

Apply patches and updates provided by MISP promptly to address security vulnerabilities.