Seems like if REQUEST_METHOD is set to GET, then we can drop two redundant ways the query string is given. munin-cgi-graph itself reads the environment variables only, but its calls to Perl's CGI::param will look at the command line if REQUEST_METHOD is not used, otherwise it uses environment variables like CGI used to work.
Since this is all behind admin auth anyway, there isn't a public vulnerability. #914 was opened without comment which lead me to notice the redundancy and worry about a vulnerability, before I realized this is admin-only anyway.
The vulnerability was created by 6d6f3ea391.
See #914.
This is the v0.19b hotfix commit.
DavDroid's latest version's account configuration no longer just asked for a hostname. Its email address & password configuration mode did not work without a SRV record.
In the earlier commit, I added a Dovecot userdb lookup. Without a userdb lookup, Dovecot would use the password db for user lookups. With a userdb lookup we can support iterating over users.
But I forgot the WHERE clause in the query, resulting in every incoming message being accepted if the user database contained any users at all. Since the mailbox path template is the same for all users, mail was delivered correctly except that mail that should have been rejected was delivered too.
On some machines localhost is defined as something other than 127.0.0.1, and if we mix "127.0.0.1" and "localhost" then some connections won't be to to the address a service is actually running on.
This was the case with DKIM: It was running on "localhost" but Postfix was connecting to it at 127.0.0.1. (https://discourse.mailinabox.email/t/opendkim-is-not-running-port-8891/1188/12.)
I suppose "localhost" could be an alias to an IPv6 address? We don't really want local services binding on IPv6, so use "127.0.0.1" to be explicit and don't use "localhost" to be sure we get an IPv4 address.
Fixes#797
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merge hotfix release tag 'v0.17c' into master
The hotfixes were all already applied to master in original PRs. This merge merely brings over the CHANGELOG and the updated install instructions (v0.17b=>v0.17c), including to bootstrap.sh which is what triggers v0.17c being the latest release.
This was originally fixed in 143bbf37f4 (February 16, 2015). Then I broke it in 7a93d219ef (November 2015) while doing some refactoring ahead of v0.15.
https://discourse.mailinabox.email/t/status-check-emails-empty-after-upgrading-to-v0-16/1082/3
A user on that thread suggests an alternate solution, adding `PYTHONIOENCODING=utf-8` to `/etc/environment`. Python docs say that affects stdin/out/err. But we also use these environment variables elsewhere to ensure that config files we read/write are opened with UTF8 too. Maybe all that can be simplified too.
Sending mail through Exchange/ActiveSync (Z-Push) had been broken since v0.14. This is now fixed.
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Merge release branch v0.15a
v0.15a
Sending mail through Exchange/ActiveSync (Z-Push) had been broken since v0.14. This is now fixed.
Refactor by moving the email-the-admin code out of the status checks and into a new separate tool.
This is why I suppressed non-error output of the backups last commit - so it doesn't send a daily email.
-----------------------
Mail:
* Updated Roundcube to version 1.1.3.
* Auto-create aliases for abuse@, as required by RFC2142.
* The DANE TLSA record is changed to use the certificate subject public key rather than the whole certificate, which means the record remains valid after certificate changes (so long as the private key remains the same, which it does for us).
Control panel:
* When IPv6 is enabled, check that system services are accessible over IPv6 too, that the box's hostname resolves over IPv6, and that reverse DNS is setup correctly for IPv6.
* Explanatory text for setting up secondary nameserver is added/fixed.
* DNS checks now have a timeout in case a DNS server is not responding, so the checks don't stall indefinitely.
* Better messages if external DNS is used and, weirdly, custom secondary nameservers are set.
* Add POP to the mail client settings documentation.
* The box's IP address is added to the fail2ban whitelist so that the status checks don't trigger the machine banning itself, which results in the status checks showing services down even though they are running.
* For SSL certificates, rather than asking you what country you are in during setup, ask at the time a CSR is generated. The default system self-signed certificate now omits a country in the subject (it was never needed). The CSR_COUNTRY Mail-in-a-Box setting is dropped entirely.
System:
* Nightly backups and system status checks are now moved to 3am in the system's timezone.
* fail2ban's recidive jail is now active, which guards against persistent brute force login attacks over long periods of time.
* Setup (first run only) now asks for your timezone to set the system time.
* The Exchange/ActiveSync server is now taken offline during nightly backups (along with SMTP and IMAP).
* The machine's random number generator (/dev/urandom) is now seeded with Ubuntu Pollinate and a blocking read on /dev/random.
* DNSSEC key generation during install now uses /dev/urandom (instead of /dev/random), which is faster.
* The $STORAGE_ROOT/ssl directory is flattened by a migration script and the system SSL certificate path is now a symlink to the actual certificate.
* If ownCloud sends out email, it will use the box's administrative address now (admin@yourboxname).
* Z-Push (Exchange/ActiveSync) logs now exclude warnings and are now rotated to save disk space.
* Fix pip command that might have not installed all necessary Python packages.
* The control panel and backup would not work on Google Compute Engine because GCE installs a conflicting boto package.
* Added a new command `management/backup.py --restore` to restore files from a backup to a target directory (command line arguments are passed to `duplicity restore`).
v0.14 (November 4, 2015)
------------------------
Mail:
* Spamassassin's network-based tests (Pyzor, others) and DKIM tests are now enabled. (Pyzor had always been installed but was not active due to a misconfiguration.)
* Moving spam out of the Spam folder and into Trash would incorrectly train Spamassassin that those messages were not spam.
* Automatically create the Sent and Archive folders for new users.
* The HTML5_Notifier plugin for Roundcube is now included, which when turned on in Roundcube settings provides desktop notifications for new mail.
* The Exchange/ActiveSync backend Z-Push has been updated to fix a problem with CC'd emails not being sent to the CC recipients.
Calender/Contacts:
* CalDAV/CardDAV and Exchange/ActiveSync for calendar/contacts wasn't working in some network configurations.
Web:
* When a new domain is added to the box, rather than applying a new self-signed certificate for that domain, the SSL certificate for the box's primary hostname will be used instead.
* If a custom DNS record is set on a domain or 'www'+domain, web would not be served for that domain. If the custom DNS record is just the box's IP address, that's a configuration mistake, but allow it and let web continue to be served.
* Accommodate really long domain names by increasing an nginx setting.
Control panel:
* Added an option to check for new Mail-in-a-Box versions within status checks. It is off by default so that boxes don't "phone home" without permission.
* Added a random password generator on the users page to simplify creating new accounts.
* When S3 backup credentials are set, the credentials are now no longer ever sent back from the box to the client, for better security.
* Fixed the jumpiness when a modal is displayed.
* Focus is put into the login form fields when the login form is displayed.
* Status checks now include a warning if a custom DNS record has been set on a domain that would normally serve web and as a result that domain no longer is serving web.
* Status checks now check that secondary nameservers, if specified, are actually serving the domains.
* Some errors in the control panel when there is invalid data in the database or an improperly named archived user account have been suppressed.
* Added subresource integrity attributes to all remotely-sourced resources (i.e. via CDNs) to guard against CDNs being used as an attack vector.
System:
* Tweaks to fail2ban settings.
* Fixed a spurrious warning while installing munin.
