Skip to content

Arbitrary File Write via Archive Extraction in unzipper

Moderate severity GitHub Reviewed Published Jul 27, 2018 to the GitHub Advisory Database • Updated Sep 20, 2023

Package

npm unzipper (npm)

Affected versions

< 0.8.13

Patched versions

0.8.13

Description

Versions of unzipper before 0.8.13 are vulnerable to arbitrary file write when used to extract a specifically crafted archive that contains path traversal filenames (../../file.txt for example).

Recommendation

Update to version 0.3.18 or later.

References

Published to the GitHub Advisory Database Jul 27, 2018
Reviewed Jun 16, 2020
Last updated Sep 20, 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
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
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:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/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.
(90th 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-2018-1002203

GHSA ID

GHSA-884w-698f-927f

Source code

No known source code
Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.