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https://github.com/ohmyzsh/ohmyzsh.git
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b3ba9978cc
The pygmalion and pygmalion-virtualenv themes unsafely handle git prompt information which results in a double evaluation of this information, so a malicious git repository could trigger a command injection if the user cloned and entered the repository. A similar method could be used in the refined theme. All themes have been patched against this vulnerability.
32 lines
1.1 KiB
Bash
32 lines
1.1 KiB
Bash
# Yay! High voltage and arrows!
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prompt_setup_pygmalion(){
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setopt localoptions extendedglob
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ZSH_THEME_GIT_PROMPT_PREFIX="%{$reset_color%}%{$fg[green]%}"
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ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%} "
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ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[yellow]%}⚡%{$reset_color%}"
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ZSH_THEME_GIT_PROMPT_CLEAN=""
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base_prompt='%{$fg[magenta]%}%n%{$reset_color%}%{$fg[cyan]%}@%{$reset_color%}%{$fg[yellow]%}%m%{$reset_color%}%{$fg[red]%}:%{$reset_color%}%{$fg[cyan]%}%0~%{$reset_color%}%{$fg[red]%}|%{$reset_color%}'
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post_prompt='%{$fg[cyan]%}⇒%{$reset_color%} '
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base_prompt_nocolor=${base_prompt//\%\{[^\}]##\}}
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post_prompt_nocolor=${post_prompt//\%\{[^\}]##\}}
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autoload -U add-zsh-hook
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add-zsh-hook precmd prompt_pygmalion_precmd
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}
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prompt_pygmalion_precmd(){
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setopt localoptions nopromptsubst extendedglob
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local gitinfo=$(git_prompt_info)
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local gitinfo_nocolor=${gitinfo//\%\{[^\}]##\}}
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local exp_nocolor="$(print -P \"${base_prompt_nocolor}${gitinfo_nocolor}${post_prompt_nocolor}\")"
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local prompt_length=${#exp_nocolor}
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PROMPT="${base_prompt}\$(git_prompt_info)${post_prompt}"
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}
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prompt_setup_pygmalion
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