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github.com/sassoftware/go-rpmutils Arbitrary File Write via Archive Extraction (Zip Slip)

High severity GitHub Reviewed Published Jun 23, 2021 to the GitHub Advisory Database • Updated Aug 29, 2023

Package

gomod github.com/sassoftware/go-rpmutils (Go)

Affected versions

< 0.1.0

Patched versions

0.1.0

Description

The CPIO extraction functionality doesn't sanitize the paths of the archived files for leading and non-leading .. which leads in file extraction outside of the current directory. Note, the fixing commit was applied to all affected versions which were re-released.

References

Published by the National Vulnerability Database Jun 24, 2020
Reviewed May 12, 2021
Published to the GitHub Advisory Database Jun 23, 2021
Last updated Aug 29, 2023

Severity

High

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
None
User interaction
None
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:N/AC:L/PR:N/UI:N/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.
(61st 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-2020-7667

GHSA ID

GHSA-9423-6c93-gpp8

Source code

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