rizinorg/cutter

Cutter GUI trimms shell code to whole bytes (might discard last nibble)

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#2,831 建立於 2021年11月22日

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good first issue

描述

Environment information

  • Operating System: linuxmint 20.2
  • Cutter version: 2.0.3
  • File format: any
  • Arch: N/A
  • Type: N/A

Describe the bug Cutter open shell code gui trimms shell code to whole bytes (might discard 1 nibble)

To Reproduce Steps to reproduce the behavior:

  1. Launch Cutter
  2. Enter odd number of nibbles
  3. Click ok
  4. See information loss

Expected behavior

  1. Fill the last lonely nibble with a 0-nibble so no information is discarded.
  2. When no shell code is entered proceed with empty input OR grey out the OK-button.

Screenshots image

貢獻者指南

技術棧
cpp
領域
desktopsecurity
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
2
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
under 1 hour
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
fresh
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
無
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
85
研究方向
Investigate the shell code input handling in Cutter's GUI code, likely in files related to dialogs or shellcode entry (e.g., `src/dialogs/ShellcodeDialog.cpp` or similar). The bug is that odd nibble counts are truncated; expected behavior is to pad with a zero nibble. Look for string to bytes conversion logic and add padding. The issue is well described and localized, making it suitable for a first time contributor.