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?
-Handle multiple hostnames (multiple user IDs?) when generating host
- keys with gen-key.
-
Work out the details (and describe a full use case) for assigning a
REVOKER during monkeysphere-server gen_key -- how is this set? How
do we export it so it's available when a second-party revocation is
needed?
-Actually enable server hostkey publication.
-
-Streamline host key generation, publication, verification. See
- doc/george/host-key-publication for what dkg went through on
- 2008-06-19
-
-Ensure that authorized_user_ids are under as tight control as ssh
- 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
- 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.
-
Provide a friendly interactive UI for marginal or failing client-side
hostkey verifications. Handle the common cases smoothly, and
provide good debugging info for the unusual cases.
-Make sure onak properly escapes user IDs with colons in them.
-
-Build a decent, presentable web site for documentation, evangelism,
- etc. Include a mention of how to report trouble or concerns.
-
Create ssh2openpgp or convert to full-fledged keytrans.
Resolve the bugs listed in openpgp2ssh(1):BUGS.
-Understand and document alternate trustdb models.
-
Understand and document the output of gpg --check-trustdb:
gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
gpg: depth: 0 valid: 2 signed: 20 trust: 0-, 0q, 0n, 0m, 0f, 2u
File bug against ssh-keygen to see if we can get it to write to hash a
known_hosts file to/from stdout/stdin.
-Add environment variables sections to man pages.
-
-Environment variable scoping.
-
-Move environment variable precedence before conf file.
-
When using ssh-proxycommand, if only host keys found are expired or
revoked, then output loud warning with prompt, or fail hard.
-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.
-Priviledge 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?
+
+Create DSA authentication subkey for server during gen-key
+
+Fix behavior when add-identity-certifier fails to fetch a key from the
+ keyserver.
-Check permissions of authorized_user_ids file to be writable only by
- user and root (same as authorized_keys)
+Allow server administrators to add-identity-certifier from a key in
+ the filesystem (or on stdin, etc)
-Improve function that sets owner trust for keys in server keychain.
+Think about packaging monkeysphere for other (non-apt-based) operating
+ systems. RPM-based linux systems, FreeBSD ports, and Mac OS X seem
+ like the most likely candidates.
projects / monkeysphere.git / blobdiff