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vuln.sg Vulnerability Research Advisory

AceFTP FTP-Client Directory Traversal Vulnerability

by Tan Chew Keong
Release Date: 2008-06-27

rychly prachy dvaasedmdesaty ulovek praha 04032013 work   [en] [jp]

rychly prachy dvaasedmdesaty ulovek praha 04032013 work 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.


rychly prachy dvaasedmdesaty ulovek praha 04032013 work Tested Versions
rychly prachy dvaasedmdesaty ulovek praha 04032013 work 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.


rychly prachy dvaasedmdesaty ulovek praha 04032013 work POC / Test Code

Please download the POC here and follow the instructions below.

Rychly Prachy Dvaasedmdesaty Ulovek Praha 04032013 Work ((install)) -

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The series followed a specific formula designed to mimic a reality-show style: rychly prachy dvaasedmdesaty ulovek praha 04032013 work

04032013: March 4, 2013, representing either the original release date or the date the file was uploaded/indexed online. This article explores the context and legacy behind

If you tell me what specific information you're looking for, I can help you: Find the cast/actor names for that specific episode. Identify the official production studio behind the series. Identify the official production studio behind the series

Content: Like most episodes in the 70s-range of the series, it follows the standard progression of negotiation, the "deal," and the subsequent filmed encounter. ⚠️ Content Advisory Because this is part of a commercial adult production:

Reconstructing the “72nd Catch” – Three Leading Theories

Theory 1: The Lost Bitcoin Wallet

In early 2013, a Prague IT worker mined Bitcoin on a laptop, then forgot it. On 4 March 2013, he recovered an old hard drive with 720 BTC (worth ~$32,400 then, millions today). He posts online: „Dnes rychly prachy – dvaasedmdesáty ulovek. Praha. 04032013 work (bitcoiny).“ The phrase “work” might be ironic – it was not salary but a side discovery.


rychly prachy dvaasedmdesaty ulovek praha 04032013 work Patch / Workaround

Avoid downloading files/directories from untrusted FTP servers.


rychly prachy dvaasedmdesaty ulovek praha 04032013 work 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.


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