CVE-2024-37893
MFA bypass in oauth flow in Firefly III
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.
INFO
Published Date :
June 17, 2024, 8:15 p.m.
Last Modified :
April 15, 2026, 12:35 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-37893.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-37893 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-37893
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-37893 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-37893 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/firefly-iii/firefly-iii/security/advisories/GHSA-4gm4-c4mh-4p7w Added Reference https://owasp.org/www-community/attacks/Password_Spraying_Attack Added Reference https://www.menlosecurity.com/what-is/highly-evasive-adaptive-threats-heat/mfa-bypass -
CVE Received by [email protected]
Jun. 17, 2024
Action Type Old Value New Value Added 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. Added Reference GitHub, Inc. https://github.com/firefly-iii/firefly-iii/security/advisories/GHSA-4gm4-c4mh-4p7w [No types assigned] Added Reference GitHub, Inc. https://owasp.org/www-community/attacks/Password_Spraying_Attack [No types assigned] Added Reference GitHub, Inc. https://www.menlosecurity.com/what-is/highly-evasive-adaptive-threats-heat/mfa-bypass [No types assigned] Added CWE GitHub, Inc. CWE-287 Added CWE GitHub, Inc. CWE-288 Added CVSS V3.1 GitHub, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N