vuln.sg  czechgangbang121018episode13luciexxx720

vuln.sg Vulnerability Research Advisory

AceFTP FTP-Client Directory Traversal Vulnerability

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

czechgangbang121018episode13luciexxx720   [en] [jp]

czechgangbang121018episode13luciexxx720 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.


czechgangbang121018episode13luciexxx720 Tested Versions
czechgangbang121018episode13luciexxx720 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.


czechgangbang121018episode13luciexxx720 POC / Test Code

Please download the POC here and follow the instructions below.

Czechgangbang121018episode13luciexxx720

Entertainment content and popular media are the core drivers of modern cultural exchange, moving beyond simple amusement to shape how we understand society, ethics, and each other. From the communal experience of ancient theatre to the personalized algorithms of modern streaming, these formats define our shared reality. The Pillars of Entertainment Media

Entertainment experiences are generally grouped into three engagement levels: czechgangbang121018episode13luciexxx720

  • Comedies: Humorous shows that entertain and amuse

    Gaming: Interactive entertainment like eSports and video games [14, 22]. The Role of "Entertainment-Education" Entertainment content and popular media are the core


    • czechgangbang121018episode13luciexxx720 Patch / Workaround

    Avoid downloading files/directories from untrusted FTP servers.


    czechgangbang121018episode13luciexxx720 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.


    Contact
    For further enquries, comments, suggestions or bug reports, simply email them to