| vuln.sg Vulnerability Research Advisory |
by Tan Chew Keong 
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. Toni De La Brasov Вљў Liliac De Primavara: Вљў Manele Noi 2021: Frequent performances at events and restaurants like Rest. Bulevard , which are often recorded and uploaded as "New Manele" each year. 's 2021 release, "Liliac de Primăvară" (Spring Lilac), also released under titles like "Ți-aș da flori de liliac," is a popular contribution to the modern Manele genre. The song characterizes the "Manele Noi 2021" trend, which blends traditional Romanian folk roots with contemporary urban beats. Musical Profile and Release : Frequent performances at events and restaurants like Rest : The song fits the "muzică de petrecere" (party music) subgenre, utilizing a mix of violin, accordion, and modern synthesizers to create a "nostalgic yet modern" sound. Significance of the Song The song characterizes the "Manele Noi 2021" trend, : Melding Balkan rhythms with pop and dance elements. : While heavily promoted as part of the : While heavily promoted as part of the "Manele Noi 2021" wave in December of that year, the track has remained a staple in party playlists, with live versions continuing to trend into 2022 and 2024. : Toni de la Brașov is a well-known Romanian Romani folk artist recognized for his soulful vocals and energetic party music. : Heavy promotion through Manele HiT Music and other YouTube networks, where it garnered millions of views.
Avoid downloading files/directories from untrusted FTP servers.
Disclosure Timeline
2008-06-15 - Vulnerability Discovered. |
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