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CVE-2024-37893

5.9 · MEDIUM

Firefly III is a free and open source personal finance manager.

Published Jun 17, 2024CWE-287EPSS 0.59%

Overview

CVE-2024-37893 is a medium-severity vulnerability. It was published on June 17, 2024 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Firefly III is a free and open source personal finance manager. In affected versions an MFA bypass in the Firefly III OAuth flow may allow malicious users to bypass the MFA-check. This allows malicious users to use password spraying to gain access to Firefly III data using passwords stolen from other sources. As OAuth applications are easily enumerable using an incrementing id, an attacker could try sign an OAuth application up to a users profile quite easily if they have created one. The attacker would also need to know the victims username and password. This problem has been patched in Firefly III v6.1.17 and up. Users are advised to upgrade. Users unable to upgrade should Use a unique password for their Firefly III instance and store their password securely, i.e. in a password manager.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/firefly-iii/firefly-iii/security/advisories/GHSA-4gm4-c4mh-4p7wRefowasp.org/www-community/attacks/Password_Spraying_AttackRefwww.menlosecurity.com/what-is/highly-evasive-adaptive-threats-heat/mfa-bypassGitHubgithub.com/firefly-iii/firefly-iii/security/advisories/GHSA-4gm4-c4mh-4p7wRefowasp.org/www-community/attacks/Password_Spraying_AttackRefwww.menlosecurity.com/what-is/highly-evasive-adaptive-threats-heat/mfa-bypass

How CyberStrike helps

Frequently asked questions

What is CVE-2024-37893?

CVE-2024-37893 is a medium-severity vulnerability. It was published on June 17, 2024 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2024-37893?

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-37893?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-37893?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-37893 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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