Vulnerability Details : CVE-2019-9648
Potential exploit
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.
Vulnerability category: Directory traversal
Products affected by CVE-2019-9648
- cpe:2.3:a:coreftp:core_ftp:2.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-9648
22.52%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 95 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-9648
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2019-9648
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-9648
-
http://seclists.org/fulldisclosure/2019/Aug/21
Full Disclosure: CoreFTP Server FTP / SFTP Server v2 - Build 674 SIZE Directory Traversal (Metasploit) Exploit
-
https://seclists.org/fulldisclosure/2019/Mar/23
Full Disclosure: CVE-2019-9648 CoreFTP Server FTP / SFTP Server v2 - Build 674 SIZE Directory TraversalExploit;Mailing List;Third Party Advisory
-
https://www.exploit-db.com/exploits/46535
Core FTP Server FTP / SFTP Server v2 Build 674 - 'SIZE' Directory TraversalExploit;Third Party Advisory;VDB Entry
-
http://www.coreftp.com/forums/viewtopic.php?f=15&t=4022509
Server v2 build 682 - Core FTPProduct;Vendor Advisory
-
http://www.securityfocus.com/bid/107446
CoreFTP Server FTP/SFTP Server CVE-2019-9648 Directory Traversal VulnerabilityThird Party Advisory;VDB Entry
-
http://packetstormsecurity.com/files/154204/CoreFTP-Server-SIZE-Directory-Traversal.html
CoreFTP Server SIZE Directory Traversal ≈ Packet Storm
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