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.
Rosewater_manor_episode_1_pc.zip May 2026
: The story centers on Rosewater Manor , a location described in related lore as being "shrouded in magic" and home to the Rosewater sisters.
While specific plot points for Episode 1 vary by update, the overarching narrative typically involves: Rosewater_Manor_Episode_1_PC.zip
: As a visual novel, gameplay consists of reading through dialogue and making choices that influence the player's relationships with the manor's residents. Technical Information : The story centers on Rosewater Manor ,
Based on available database records, is an adult-themed visual novel or interactive fiction game, often distributed as a PC-compatible .zip file. Game Overview Genre : Adult Visual Novel / Ren'Py Game. Game Overview Genre : Adult Visual Novel / Ren'Py Game
: A protagonist (often male) arrives at a large estate, such as Rosewater Manor, and interacts with multiple female characters.
: Primarily developed for Windows PC (as indicated by the .pc.zip naming convention common in adult gaming communities). Key Story Elements
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.