Filebrowser up to 2.17.x cross-site request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Filebrowser up to 2.17.x. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in cross-site request forgery. This vulnerability is identified as CVE-2021-46398. The attack can be initiated remotely. Additionally, an exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Filebrowser up to 2.17.x. It has been classified as problematic. This affects an unknown functionality. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity.

The bug was discovered 10/15/2021. The weakness was released 02/04/2022 by Febin Mon Saji (Febin). It is possible to read the advisory at febin0x4e4a.blogspot.com. This vulnerability is uniquely identified as CVE-2021-46398 since 01/18/2022. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Febin Mon Saji. The exploit is shared for download at exploit-db.com. It is declared as functional. The vulnerability was handled as a non-public zero-day exploit for at least 112 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.18.0 eliminates this vulnerability. Applying the patch 74b7cd8e81840537a8206317344f118093153e8d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the vulnerability database at Exploit-DB (50717). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

Researcher Base Score: 9.6
Researcher Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Researcher Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Functional
Author: Febin Mon Saji
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: Filebrowser 2.18.0
Patch: 74b7cd8e81840537a8206317344f118093153e8d

Timelineinfo

10/15/2021 🔍
10/16/2021 +1 days 🔍
01/18/2022 +94 days 🔍
02/04/2022 +17 days 🔍
02/04/2022 +0 days 🔍
05/01/2025 +1182 days 🔍

Sourcesinfo

Product: github.com

Advisory: 74b7cd8e81840537a8206317344f118093153e8d
Researcher: Febin Mon Saji (Febin)
Status: Confirmed

CVE: CVE-2021-46398 (🔍)
GCVE (CVE): GCVE-0-2021-46398
GCVE (VulDB): GCVE-100-192291
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/04/2022 18:35
Updated: 05/01/2025 20:06
Changes: 02/04/2022 18:35 (39), 02/06/2022 17:04 (26), 02/06/2022 17:07 (7), 02/07/2022 07:47 (2), 02/09/2022 15:17 (5), 02/09/2022 15:18 (3), 02/09/2022 15:21 (3), 11/21/2024 12:47 (15), 05/01/2025 20:06 (3)
Complete: 🔍
Committer: febin0x4e4a
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

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