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NodeBB vulnerable to path traversal in translator module

Moderate severity GitHub Reviewed Published Nov 27, 2021 in NodeBB/NodeBB • Updated Feb 1, 2023

Package

npm nodebb (npm)

Affected versions

>= 1.0.4, < 1.18.5

Patched versions

1.18.5

Description

Impact

Prior to v1.18.5, a path traversal vulnerability was present that allowed users to access JSON files outside of the expected languages/ directory.

Patches

The vulnerability has been patched as of v1.18.5.

Workarounds

Cherry-pick commit hash c8b2fc46dc698db687379106b3f01c71b80f495f to receive this patch in lieu of a full upgrade.

For more information

If you have any questions or comments about this advisory:

References

@julianlam julianlam published to NodeBB/NodeBB Nov 27, 2021
Published by the National Vulnerability Database Nov 29, 2021
Reviewed Nov 30, 2021
Published to the GitHub Advisory Database Nov 30, 2021
Last updated Feb 1, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(85th percentile)

Weaknesses

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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. Learn more on MITRE.

CVE ID

CVE-2021-43788

GHSA ID

GHSA-pfj7-2qfw-vwgm

Source code

Credits

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