- >= 0.1.1
The gollum-grit_adapter gem contains a flaw that can allow arbitrary command execution.
Grit implements its search functionality by shelling out to
git grep. In
git grep takes a
--open-files-in-pages option that will
pipe the results of
grep to an arbitrary process. By failing to properly
sanitize user input search parameters, an attacker can thus perform command
Note that the grep result must find the string ‘master’ (or whatever is the default branch that gollum uses) in any of the wiki’s documents for this to succeed.