SB2021072604 - Improper Restriction of Excessive Authentication Attempts in Firefly III

Description

This security bulletin contains information about 1 vulnerability.

1) Improper Restriction of Excessive Authentication Attempts (CVE-ID: CVE-2021-3663)

CWE-ID: CWE-307 - Improper Restriction of Excessive Authentication Attempts

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the affected software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame. A remote attacker can perform a brute-force attack and gain access to sensitive information on the system.

Remediation

Install update from vendor's website.

References

• https://huntr.dev/bounties/497bdf6d-7dba-49c3-8011-1c64dfbb3380
• https://github.com/firefly-iii/firefly-iii/commit/afc9f4b7ebc8a240c85864a6e1abda62bfeefae8