VDB-187331 · CVE-2021-43788 · GHSA-pfj7-2qfw-vwgm

Nodebb up to 1.18.4 JSON File languages/ path traversal

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.
4.5	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Nodebb up to 1.18.4. Affected by this issue is some unknown functionality of the file languages/ of the component JSON File Handler. The manipulation leads to path traversal. This vulnerability is documented as CVE-2021-43788. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Nodebb up to 1.18.4 and classified as critical. This issue affects an unknown code of the file languages/ of the component JSON File Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality.

The weakness was released 11/30/2021 as GHSA-pfj7-2qfw-vwgm. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-43788 since 11/16/2021. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 1.18.5 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch c8b2fc46dc698db687379106b3f01c71b80f495f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

Nodebb

Version

License

open-source

Website

Product: https://github.com/NodeBB/NodeBB/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

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

CNA Base Score: 5.0
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Nodebb 1.18.5
Patch: c8b2fc46dc698db687379106b3f01c71b80f495f

Timelineinfo

11/16/2021 🔍
11/30/2021 +14 days 🔍
11/30/2021 +0 days 🔍
12/02/2021 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-pfj7-2qfw-vwgm
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-43788 (🔍)
GCVE (CVE): GCVE-0-2021-43788
GCVE (VulDB): GCVE-100-187331

Entryinfo

Created: 11/30/2021 09:24
Updated: 12/02/2021 21:51
Changes: 11/30/2021 09:24 (53), 12/02/2021 21:40 (2), 12/02/2021 21:51 (7)
Complete: 🔍
Cache ID: 216::103