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Path Traversal in MHolt Archiver

Moderate severity GitHub Reviewed Published May 18, 2021 to the GitHub Advisory Database • Updated Feb 13, 2024

Package

gomod github.com/mholt/archiver (Go)

Affected versions

>= 3.0.0, < 3.3.2

Patched versions

3.3.2

Description

All versions of archiver allow attacker to perform a Zip Slip attack via the "unarchive" functions. It is exploited using a specially crafted zip archive, that holds path traversal filenames. When exploited, a filename in a malicious archive is concatenated to the target extraction directory, which results in the final path ending up outside of the target folder. For instance, a zip may hold a file with a "../../file.exe" location and thus break out of the target folder. If an executable or a configuration file is overwritten with a file containing malicious code, the problem can turn into an arbitrary code execution issue quite easily.

Specific Go Packages Affected

github.com/mholt/archiver/cmd/arc

References

Published by the National Vulnerability Database Oct 29, 2019
Reviewed May 17, 2021
Published to the GitHub Advisory Database May 18, 2021
Last updated Feb 13, 2024

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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS score

0.127%
(48th percentile)

Weaknesses

CVE ID

CVE-2019-10743

GHSA ID

GHSA-h74j-692g-48mq

Source code

No known source code
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