imds-filterd (pronounced "I M D S Filter D") is a pair of utilities which
work together to intercept and filter requests to the EC2 Instance Metadata
Service -- or theoretically any other service at 169.254.169.254:80.
It validates requests against a configured ruleset which specifies whether
given users and groups should be allowed or denied access to certain prefixes
in the Instance Metadata Service. For example, "root" could be granted
access to everything; most unprivileged users granted access to everything
except IAM role credentials; but the www user denied access to the entire
Instance Metadata Service in order to guard against SSRF and similar attacks.
===> The following configuration options are available for imds-filterd-0.1:
DOCS=on: Build and/or install documentation
===> Use 'make config' to modify these settings
To enable imds-filterd, add imds_filterd_enable=YES to /etc/rc.conf.
To configure imds-filterd, edit $PREFIX/etc/imds.conf.
imds-filterd ships with configurations for syslogd and newsyslog which log
accesses to the Instance Metadata Service to /var/log/imds.log and rotate
this file upon reaching 1 MB; these settings can be modified via
$PREFIX/etc/{syslog.d, newsyslog.conf.d}/imds.conf.
Remove WWW entries moved into port Makefiles
Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.
This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.
Approved by: portmgr (tcberner)
Add WWW entries to port Makefiles
It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.
Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.
There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.
(Only the first 15 lines of the commit message are shown above )
Add imds-filterd.
The imds-filterd tool allows administrators of EC2 instances to lock down
which data from the Instance Metadata Service can be accessed by specified
system users and groups, thereby making the EC2 Instance Metadata Service
compatible with traditional UNIX privilege separation.
Reviewed by: otis, dizzy, lwhsu
Sponsored by: Tarsnap Backup Inc.
