by Tan Chew Keong
Release Date: 2008-06-27
[en] [jp]
Summary
A vulnerability has been found within the FTP client in AceFTP. When exploited, this vulnerability allows an anonymous attacker to write files to arbitrary locations on a Windows user's system.
Tested Versions
Details
This advisory discloses a vulnerability within the FTP client in AceFTP. When exploited, this vulnerability allows an anonymous attacker to write files to arbitrary locations on a Windows user's system.
The FTP client does not properly sanitise filenames containing directory traversal sequences (forward-slash) that are received from an FTP server in response to the LIST command.
An example of such a response from a malicious FTP server is shown below.
Response to LIST (forward-slash):
-rw-r--r-- 1 ftp ftp 20 Mar 01 05:37 /../../../../../../../../../testfile.txt\r\n
By tricking a user to download a directory from a malicious FTP server that contains files with fowward-slash directory traversal sequences in their filenames, it is possible for the attacker to write files to arbitrary locations on a user's system with privileges of that user. An attacker can potentially leverage this issue to write files into a user's Windows Startup folder and execute arbitrary code when the user logs on.
POC / Test Code
Please download the POC here and follow the instructions below.
---carnival Row -season 1- Web-dl -hindi -org 5.1... -
Now, the user might be looking to create a post that informs others about the Hindi dubbed version of Carnival Row Season 1, especially in high-quality audio. They might want to highlight the availability of this version, maybe for people who prefer watching shows in Hindi. But wait, I need to be cautious here because distributing such content without proper authorization might infringe on copyright laws. The user might not be aware of that, or they might have a different intention.
Also, including a brief synopsis of Carnival Row to entice people to watch could be helpful. Maybe mention the fantasy/fantasy elements, the setting in the city of Vespera, and the mix of humans and magical beings. That way, the post isn't just about technical specs but also gives context about the show itself. ---Carnival Row -Season 1- WEB-DL -Hindi -ORG 5.1...
I should make sure the post doesn't encourage piracy. If the user is referring to a legal source, then it's fine. If not, advising them to use legal means is important. The final response should perhaps include a disclaimer about supporting legal streaming services and creators, while still providing the information they asked for. Now, the user might be looking to create
This post is for informational and entertainment purposes only. Always prioritize legal and licensed streaming options. 🌌 The user might not be aware of that,
Ensure you access content through legal channels to support the creators and production teams behind this visionary series. #CarnivalRow #FantasyTV #NetflixShows #HindiDub #51Audio #DarkFantasy
Patch / Workaround
Avoid downloading files/directories from untrusted FTP servers.
Disclosure Timeline
2008-06-15 - Vulnerability Discovered.
2008-06-16 - Vulnerability Details Sent to Vendor via online support form (no reply).
2008-06-18 - Vulnerability Details Sent to Vendor again via online support form (no reply).
2008-06-25 - Vulnerability Details Sent to Vendor again via online support form (no reply).
2008-06-27 - Public Release.