Vulnerability · Published Jan 31, 2023 · Assigned by ONEKEY
CVE-2023-0591Path Traversal in ubi_reader
Medium 5.5
In plain English
A medium-severity path traversal in ubi_reader from jrspruitt. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | ubi-reader | 0.8.5 | GHSA-vp2x-3mc3-3cj4 |
| PyPI | ubi-reader | 0.8.5 | PYSEC-2023-51 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| jrspruitt | ubi_reader | 0 – before 0.8.5 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N