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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.
54 lines
1.8 KiB
Bash
54 lines
1.8 KiB
Bash
# Yay! High voltage and arrows!
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function _virtualenv_prompt_info {
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if [[ -n "$(whence virtualenv_prompt_info)" ]]; then
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if [ -n "$(whence pyenv_prompt_info)" ]; then
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if [ "$1" = "inline" ]; then
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ZSH_THEME_VIRTUAL_ENV_PROMPT_PREFIX=%{$fg[blue]%}"::%{$fg[red]%}"
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ZSH_THEME_VIRTUAL_ENV_PROMPT_SUFFIX=""
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virtualenv_prompt_info
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fi
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[ "$(pyenv_prompt_info)" = "${PYENV_PROMPT_DEFAULT_VERSION}" ] && virtualenv_prompt_info
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else
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virtualenv_prompt_info
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fi
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fi
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}
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prompt_setup_pygmalion(){
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setopt localoptions extendedglob
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ZSH_THEME_GIT_PROMPT_PREFIX="%{$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='$(_virtualenv_prompt_info)%{$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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# add new line on prompt longer than 40 characters
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local nl=""
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if [[ $prompt_length -gt 40 ]]; then
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nl=$'\n%{\r%}'
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fi
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PROMPT="${base_prompt}\$(git_prompt_info)${nl}${post_prompt}"
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}
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prompt_setup_pygmalion
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