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Prevent parsing of escape characters #873

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Merged
decalage2 merged 2 commits into from
May 21, 2025
Merged

Prevent parsing of escape characters #873

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5641d8d
Replace char 27 (ESC) with \e
sdushantha May 6, 2025
ab9a043
fix(olevba): prevent display of ANSI escape codes on the CLI (PR #873…
decalage2 May 21, 2025
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5 changes: 5 additions & 0 deletions oletools/olevba.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4112,6 +4112,11 @@ def colorize_keywords(self, vba_code):
for kw_type, keyword, description in results:
color_type = COLOR_TYPE.get(kw_type, None)
if color_type:

# Prevent malicious actors from performing anti-analysis by replacing
# character 27 (ESC) with \e.
# See more: https://www.youtube.com/watch?v=3T2Al3jdY38
vba_code = vba_code.replace("\x1b", "\\e")
vba_code = vba_code.replace(keyword, '{auto%s}%s{/%s}' % (color_type, keyword, color_type))
return vba_code

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