vuln.sg Vulnerability Research Advisory

AceFTP FTP-Client Directory Traversal Vulnerability by Tan Chew Keong Release Date: 2008-06-27    [en] [jp] 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 AceFTP Freeware Version 3.80.3 AceFTP Pro Version 3.80.3 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. Hp Probook 450 G2 Bios Administrator Password Top Link If the above methods don't work, you can contact HP support for assistance. They may be able to provide you with additional guidance or reset the password remotely. Forgetting the BIOS administrator password on your HP ProBook 450 G2 can be a frustrating experience, especially if you need to access the BIOS settings to configure important settings or make changes to the system. Fortunately, there are methods to reset the BIOS administrator password on this laptop model. hp probook 450 g2 bios administrator password top Patch / Workaround Avoid downloading files/directories from untrusted FTP servers. 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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