| 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. Iron Man 3 Hindi Better SiteWithout spoiling too much, Iron Man 3 has a massive twist regarding the villain, The Mandarin. When Ben Kingsley’s character switches to pure, over-the-top comedy in the second half, the Hindi dubbing artists went wild . The dialogues become meme-worthy, resembling a parody of a '90s Bollywood villain, which actually fits the director’s intention better than the sinister English tone. Jarvis, Tony’s AI butler, sounds sophisticated in English. In the version, Jarvis speaks "Shuddh Hindi" (pure Hindi). Hearing a robot say "Namaste, Saahab" or "Aagya kijiye" adds a layer of comedy and warmth that the English version lacks. iron man 3 hindi
Avoid downloading files/directories from untrusted FTP servers.
Disclosure Timeline
2008-06-15 - Vulnerability Discovered. |
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