Vulnerability Description
ftp-srv is an open-source FTP server designed to be simple yet configurable. In ftp-srv before version 4.4.0 there is a path-traversal vulnerability. Clients of FTP servers utilizing ftp-srv hosted on Windows machines can escape the FTP user's defined root folder using the expected FTP commands, for example, CWD and UPDR. When windows separators exist within the path (`\`), `path.resolve` leaves the upper pointers intact and allows the user to move beyond the root folder defined for that user. We did not take that into account when creating the path resolve function. The issue is patched in version 4.4.0 (commit 457b859450a37cba10ff3c431eb4aa67771122e3).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ftp-Srv Project | Ftp-Srv | < 4.4.0 |
Related Weaknesses (CWE)
References
- https://github.com/autovance/ftp-srv/commit/457b859450a37cba10ff3c431eb4aa677711PatchThird Party Advisory
- https://github.com/autovance/ftp-srv/issues/167ExploitPatchThird Party Advisory
- https://github.com/autovance/ftp-srv/issues/225ExploitThird Party Advisory
- https://github.com/autovance/ftp-srv/pull/224PatchThird Party Advisory
- https://github.com/autovance/ftp-srv/security/advisories/GHSA-pmw4-jgxx-pcq9ExploitThird Party Advisory
- https://www.npmjs.com/package/ftp-srvProductThird Party Advisory
- https://github.com/autovance/ftp-srv/commit/457b859450a37cba10ff3c431eb4aa677711PatchThird Party Advisory
- https://github.com/autovance/ftp-srv/issues/167ExploitPatchThird Party Advisory
- https://github.com/autovance/ftp-srv/issues/225ExploitThird Party Advisory
- https://github.com/autovance/ftp-srv/pull/224PatchThird Party Advisory
- https://github.com/autovance/ftp-srv/security/advisories/GHSA-pmw4-jgxx-pcq9ExploitThird Party Advisory
- https://www.npmjs.com/package/ftp-srvProductThird Party Advisory
FAQ
What is CVE-2020-26299?
CVE-2020-26299 is a vulnerability with a CVSS score of 6.3 (MEDIUM). ftp-srv is an open-source FTP server designed to be simple yet configurable. In ftp-srv before version 4.4.0 there is a path-traversal vulnerability. Clients of FTP servers utilizing ftp-srv hosted on...
How severe is CVE-2020-26299?
CVE-2020-26299 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26299?
Check the references section above for vendor advisories and patch information. Affected products include: Ftp-Srv Project Ftp-Srv.