Vim: Vimscript Code Injection in netrw NetrwBookHistSave() via crafted directory name

Description

Vim is an open source, command line text editor. Prior to version 9.2.0495, a Vimscript code injection vulnerability exists in s:NetrwBookHistSave() in the netrw plugin (runtime/pack/dist/opt/netrw/autoload/netrw.vim) when serializing browsed directory paths to the history file ~/.vim/.netrwhist. A directory name derived from the filesystem is interpolated into a single-quoted Vimscript string literal without escaping embedded single quotes, allowing a crafted directory name to break out of the string context and execute arbitrary Vimscript, including shell commands via system() and :!, the next time the history file is sourced. This issue has been patched in version 9.2.0495.

Affected Products

References

• https://github.com/vim/vim/security/advisories/GHSA-crm5-rh6j-2c7c(x_refsource_CONFIRM)
• https://github.com/vim/vim/commit/f08ab2f4d7d2947c8dd6c179ae08ee6146a2694b(x_refsource_MISC)
• https://github.com/vim/vim/releases/tag/v9.2.0495(x_refsource_MISC)

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