CVE-2023-0591

Relative Path Traversal in pypi/ubi-reader

Identifiers

CVE-2023-0591, GHSA-vp2x-3mc3-3cj4

Package Slug

pypi/ubi-reader

Vulnerability

Relative Path Traversal

Description

ubireaderextractfiles is vulnerable to path traversal when run against specifically crafted UBIFS files, allowing the attacker to overwrite files outside of the extraction directory (provided the process has write access to that file or directory). This is due to the fact that a node name (dentnode.name) is considered trusted and joined to the extraction directory path during processing, then the node content is written to that joined path. By crafting a malicious UBIFS file with node names holding path traversal payloads (e.g. ../../tmp/outside.txt), it's possible to force ubireader to write outside of the extraction directory. This issue affects ubi-reader before 0.8.5.

Affected Versions

All versions before 0.8.5

Solution

Upgrade to version 0.8.5 or above.

Last Modified

2023-02-01

source