and how the monkeysphere can help you reduce these threat vectors:
threat model reduction diagrams.
-Determine how openssh handles multiple processes writing to
- known_hosts/authorized_keys files (lockfile, atomic appends?)
-
Handle unverified monkeysphere hosts in such a way that they're not
always removed from known_hosts file. Ask user to lsign the host
key?
expects from authorized_keys: we don't want monkeysphere to be a
weak link in the filesystem.
-What happens when a user account has no corresponding
- /etc/monkeysphere/authorized_user_ids/$USER file? What gets placed
- in /var/cache/monkeysphere/authorized_keys/$USER? It looks
- currently untouched, which could mean bad things for such a user.
- - if authorized_user_ids is empty, then the user's authorized_keys
- file will be also, unless the user-controlled authorized_keys file
- is added. I believe this is expected, correct behavior.
-
Consider the default permissions for
- /var/cache/monkeysphere/authorized_keys/* (and indeed the whole
+ /var/lib/monkeysphere/authorized_keys/* (and indeed the whole
directory path leading up to that)
-As an administrator, how do i reverse the effect of a
- "monkeysphere-server trust-keys" that i later decide i should not
- have run?
-
Make sure alternate ports are handled for known_hosts.
Script to import private key into ssh agent.
Update monkeysphere-ssh-proxycommand man page with new keyserver
checking policy info.
-Update monkeysphere-ssh-proxycommand man page with info about
- no-connect option.
+File bug against seahorse about how, when creating new primary keys,
+ it presents option for "RSA (sign only)" but then creates an "esca"
+ key.
+
+File bug against enigmail about lack of ability to create subkeys.
+
+Privilege separation: monkeysphere user to handle authn keyring and
+ generate authorized_keys file (which would be moved into place by
+ root). Host keyring would be owned by root.
+
+Test and document what happens when any filesystem that the
+ monkeysphere-server relies on and modifies (/tmp, /etc, and /var?)
+ fills up.
+
+Optimize keyserver access, particularly on monkeysphere-server
+ update-users -- is there a way to query the keyserver all in a
+ chunk?