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.
Sinan Akг§д±l Durum Г‡ok ✦
An acoustic version featuring Enes Yolcu was released shortly after the original.
The lyrics of "Durum Çok Acil" (which translates to "The Situation is Very Urgent") explore themes of , unconditional love , and the urgency of reconciliation . Sinan AkГ§Д±l Durum Г‡ok
Initially released on January 21, 2022, as part of the Piyanist 2 album. Composition: Written and composed by Sinan Akçıl . Arrangement: Produced and arranged by Mustafa Ceceli . Mixing & Mastering: Handled by Koray Püskül. An acoustic version featuring Enes Yolcu was released
The song is a mid-tempo Turkish pop ballad characterized by its emotional depth and collaborative vocal performance. Composition: Written and composed by Sinan Akçıl
The narrators describe a state of physical and emotional exhaustion caused by the absence of a loved one ("My weakness is not from tiredness... it's from your absence").
In addition to the original version found on Spotify and Apple Music , several other versions were released to cater to different audiences:
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.