| 제목 | PCMan FTP Server 2.0.7 Buffer Overflow |
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| 설명 | This technique works well against Windows XP Professional Service Pack 2 and 3.
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 "APPEND" command, the application crashes, indicating the Buffer Overflow condition.
Then, the offset amount was identified by using msf-pattern_create -l 3000
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 0x74e32fd9.
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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| 원천 | ⚠️ https://fitoxs.com/exploit/exploit-65b1721b02d84e0c79b6cd3c2473d3ed9c441087d702bd3a76b82fc2ae04388b.txt |
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| 사용자 | Fernando Mengali (UID 83791) |
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| 제출 | 2025. 04. 17. PM 09:51 (1 년도 ago) |
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| 모더레이션 | 2025. 05. 04. AM 08:54 (16 days later) |
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| 상태 | 수락 |
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| VulDB 항목 | 307356 [PCMan FTP Server 2.0.7 APPEND Command 메모리 손상] |
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| 포인트들 | 20 |
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