Firefly III cross-site request forgery

EntryHistoryDiffjsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.0	$0-$5k	0.00

A vulnerability was found in Firefly III (unknown version). It has been rated as problematic. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity.

The weakness was shared 10/28/2021. The advisory is shared for download at huntr.dev. This vulnerability is handled as CVE-2021-3900 since 10/23/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Applying the patch c2c8c42ef3194d1aeba8c48240fe2e9063f77635 is able to eliminate this problem. The bugfix is ready for download at github.com.

Productinfo

Name

Firefly III

License

open-source

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 4.3
CNA Vector (huntr.dev): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: c2c8c42ef3194d1aeba8c48240fe2e9063f77635

Timelineinfo

10/23/2021 🔍
10/28/2021 +5 days 🔍
10/28/2021 +0 days 🔍
11/01/2021 +4 days 🔍

Sourcesinfo

Advisory: c2c8c42ef3194d1aeba8c48240fe2e9063f77635
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3900 (🔍)

Entryinfo

Created: 10/28/2021 13:54
Updated: 11/01/2021 13:49
Changes: 10/28/2021 13:54 (47), 11/01/2021 13:43 (3), 11/01/2021 13:49 (18)
Complete: 🔍