| 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. Kodungallur Theri Pattu Lyrics <Ultra HD>Kodungallorammakk innu theriyum kuththam... (Today, Kodungallur Mother faces the insult of obscenity…) Kunnin mel irukkum deivam – koothiye pole nadakkum (The goddess who sits on the hill – walks like a whore) Kodungallur Theri Pattu Lyrics Mullakku poovum choodi – muthinja moola thedi (Wearing jasmine flowers – seeking an aged loincloth) Kodungallorammakk innu theriyum kuththam | Tradition | Culture | Similarity | | :--- | :--- | :--- | | | Ancient Roman | Obscene songs directed at deities (e.g., during triumph ceremonies) | | Kharra Ritual | Rajasthan, India | Ritual abuse of male deities (e.g., Ramdev Pir) | | Saturnalia | Roman | Social and verbal inversion for one festival | | Hojatari | Japan | Women ritually mocking and abusing a male priest at Toshigi Shrine | 8. Conclusion and Recommendations The Kodungallur Theri Pattu lyrics are not devotional poetry in the conventional sense; they are a sophisticated, ritualized system of verbal aggression as worship . They preserve an archaic Dravidian belief that gods must be bound and controlled by human obscenity when they become dangerously powerful. They preserve an archaic Dravidian belief that gods Theriyo! theriyo! theri pattinu utharamilla (Lament! Lament! There is no reply to the lament song) Konnappookkal choodi vannaval, koothi thanne... (She who came wearing blood-red flowers is but a whore…) (Note: Performers maintain that such words are not literal abuse but ritual "dark praise.") The Theri Pattu defies standard models of worship. Its functions are:
Avoid downloading files/directories from untrusted FTP servers.
Disclosure Timeline
2008-06-15 - Vulnerability Discovered. |
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