CoreFTP Directory Traversal
An issue was discovered in the SFTP Server component in Core FTP 2.0 Build 674. A directory traversal vulnerability exists using the SIZE command along with a \..\..\ substring, allowing an attacker to enumerate file existence based on the returned information.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | CoreFtp | <= 2.0 | no fix |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-9648
- https://github.com/sparkeh9/CoreFTP
- https://seclists.org/fulldisclosure/2019/Mar/23
- https://web.archive.org/web/20210125013812/https://www.securityfocus.com/bid/107446
- https://www.exploit-db.com/exploits/46535
- http://packetstormsecurity.com/files/154204/CoreFTP-Server-SIZE-Directory-Traversal.html
- http://seclists.org/fulldisclosure/2019/Aug/21
- http://www.coreftp.com/forums/viewtopic.php?f=15&t=4022509
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-22- Platform
- .NET (NuGet)
- Package
CoreFtp- Disclosed
- 14.05.2022
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-w393-h95m-f879 - CC BY 4.0
Vulnerability history: CoreFtp
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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