Multiple vulnerabilities in Firefly III



Published: 2021-09-20
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
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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

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Firefly III: 5.5.0 - 5.5.12


CPE2.3 External links

http://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

Description

The 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Firefly III: 3.0.0 - 5.5.13


CPE2.3 External links

http://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

Description

The 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Firefly III: 3.0.0 - 5.5.13


CPE2.3 External links

http://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

Description

The 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Firefly III: 3.0.0 - 5.5.13


CPE2.3 External links

http://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.



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