Wrong permission set by task "unpriv_user | Ensure /etc dir has permissions"

[marcin-github]

Hola!
Mentioned task sets insecure permissons to /etc/burp and files under the dir. Files should not have executable bit set.
Also I think that correct owner for all this files and directories is root beside a couple of files which should be writeable by burp process (ssl cert stuff). Non root processes shouldn't have possibility to modify files under /etc, usually :)