| tiêu đề | FreeFloat FTP Server 1.0 Buffer Overflow |
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| Mô tả | This technique works well against Windows XP Professional Service Pack 2 and 3.
This exploitation test was performed on a 32-bit Freefloat FTP server version 1.0.
For this exploit, I tried several strategies to increase the reliability of the Poc - Proof Of Concept.
Sending an excessive amount of data through the "HASH" command, the application crashes, indicating the Buffer Overflow condition.
Then, the offset amount was identified by using msf-pattern_create -l 1000
And then by using msf-pattern_offset -q to discover the offset amount.
After discovering the offset amount, it was necessary to adjust the data in the stack.
To advance in the exploit , mona was used, together with the command !mona jmp -r esp -n to discover a JMP ESP address, in this case it was 0x7c86467b.
Then I used the removal of the main badchars: 0x00\0x0a\0x0d I did not perform a search for badchars through bytearray, because I already knew the environment I was working in.
Finally, I added 20 nops and generated the shellcode with msfvenom
Successful exploitation of these issues could allow attackers to obtain a remote shell on the system. |
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| Nguồn | ⚠️ https://fitoxs.com/exploit/exploit-bc230ff2f41a996bdab8ab4072a38e2e99aa486f2d7f50f8f9e983adb7dc4536.txt |
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| Người dùng | Fernando Mengali (UID 83791) |
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| Đệ trình | 07/05/2025 02:53 (cách đây 12 các tháng) |
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| Kiểm duyệt | 15/05/2025 18:05 (9 days later) |
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| Trạng thái | được chấp nhận |
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| Mục VulDB | 309100 [FreeFloat FTP Server 1.0 HASH Command tràn bộ đệm] |
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| điểm | 20 |
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