Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubi Reader Project | Ubi Reader | < 0.8.5 |
Related Weaknesses (CWE)
References
- https://github.com/jrspruitt/ubi_reader/pull/57PatchThird Party Advisory
- https://onekey.com/blog/security-advisory-remote-command-execution-in-binwalk/ExploitThird Party Advisory
- https://github.com/jrspruitt/ubi_reader/pull/57PatchThird Party Advisory
- https://onekey.com/blog/security-advisory-remote-command-execution-in-binwalk/ExploitThird Party Advisory
FAQ
What is CVE-2023-0591?
CVE-2023-0591 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 p...
How severe is CVE-2023-0591?
CVE-2023-0591 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-0591?
Check the references section above for vendor advisories and patch information. Affected products include: Ubi Reader Project Ubi Reader.