Ubi Reader

ubireader_extract_files 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 (dent_node.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 ubi_reader to write outside of the extraction directory. This issue affects ubi-reader before 0.8.5.

Published: 2023-01-31T09:18:07.998Z
Updated: 2025-03-26T20:38:12.757Z

A vulnerability, which was classified as problematic, has been found in UBI Reader up to 0.8.0. Affected by this issue is the function ubireader_extract_files of the file ubireader/ubifs/output.py of the component UBIFS File Handler. The manipulation leads to path traversal. The attack may be launched remotely. Upgrading to version 0.8.5 is able to address this issue. The name of the patch is d5d68e6b1b9f7070c29df5f67fc060f579ae9139. It is recommended to upgrade the affected component. VDB-216146 is the identifier assigned to this vulnerability.

Published: 2022-12-17T00:00:00.000Z
Updated: 2025-04-15T13:01:40.705Z