| 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. Patati Patata - Culinaria Mundial (dvd Volta Ao Mundo) -: Although released in widescreen, it was actually recorded in 4:3 and zoomed during editing. The DVD includes extras like karaoke , a "Cultural Trip," and a photo gallery. : The DVD's release was significantly delayed due to a fire in 2008 that destroyed a large portion of the production's sets. : Like the rest of the Volta ao Mundo DVD, the song aims to teach children about global diversity and cultures in a fun, musical way. Production Facts: Volta ao Mundo (DVD) Patati Patata - Culinaria Mundial (DVD Volta ao Mundo) The production of this DVD faced unique challenges and technical shifts: : It was originally released in 2010 by Rinaldi Produções and later distributed by Som Livre in 2011. : Although released in widescreen, it was actually The DVD remains a staple in Brazilian children's media and is available for streaming on platforms like Amazon and Prime Video . Patati Patatá – Volta Ao Mundo | Releases - Discogs : "Culinária Mundial" is the 5th track on the disc, appearing alongside other popular songs such as: Volta ao Mundo Amor Universal A Dança do Lôro Brincando na Chuva . : Like the rest of the Volta ao The song and its accompanying music video focus on exploring international cultures through their food. It features traveling on a "magic carpet" to discover different global flavors.
Avoid downloading files/directories from untrusted FTP servers.
Disclosure Timeline
2008-06-15 - Vulnerability Discovered. |
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