Multiple vulnerabilities in Firefly III
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2021-3663 CVE-2021-3728 CVE-2021-3729 CVE-2021-3730 |
| CWE-ID | CWE-307 CWE-352 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Firefly III Client/Desktop applications / Other client software |
| Vendor | James Cole |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Improper Restriction of Excessive Authentication Attempts
EUVDB-ID: #VU55292
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3663
CWE-ID:
CWE-307 - Improper Restriction of Excessive Authentication Attempts
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsFirefly III: 5.5.0 - 5.5.12
External linkshttp://huntr.dev/bounties/497bdf6d-7dba-49c3-8011-1c64dfbb3380
http://github.com/firefly-iii/firefly-iii/commit/afc9f4b7ebc8a240c85864a6e1abda62bfeefae8
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Cross-site request forgery
EUVDB-ID: #VU56696
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3728
CWE-ID:
CWE-352 - Cross-Site Request Forgery (CSRF)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.
MitigationInstall update from vendor's website.
Vulnerable software versionsFirefly III: 3.0.0 - 5.5.13
External linkshttp://github.com/firefly-iii/firefly-iii/commit/14cdce113e0eb8090d09066fcd2b5cf03b5ac84e
http://huntr.dev/bounties/dd54c5a1-0d4a-4f02-a111-7ce4ddc67a4d
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Cross-site request forgery
EUVDB-ID: #VU56697
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3729
CWE-ID:
CWE-352 - Cross-Site Request Forgery (CSRF)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.
MitigationInstall update from vendor's website.
Vulnerable software versionsFirefly III: 3.0.0 - 5.5.13
External linkshttp://huntr.dev/bounties/d32f3d5a-0738-41ba-89de-34f2a772de76
http://github.com/firefly-iii/firefly-iii/commit/06d319cd71b7787aa919b3ba1ccf51e4ade67712
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Cross-site request forgery
EUVDB-ID: #VU56698
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3730
CWE-ID:
CWE-352 - Cross-Site Request Forgery (CSRF)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.
MitigationInstall update from vendor's website.
Vulnerable software versionsFirefly III: 3.0.0 - 5.5.13
External linkshttp://huntr.dev/bounties/ea181323-51f8-46a2-a60f-6a401907feb7
http://github.com/firefly-iii/firefly-iii/commit/f80178b1b2b7864d17500a131d570c353c9a26f6
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
