From 2d257ccf620ce1b611f89cec8f0a94c88c2f2881 Mon Sep 17 00:00:00 2001
From: Sumit Bose <sbose@redhat.com>
Date: Thu, 5 Jul 2012 10:50:08 +0200
Subject: pac responder: limit access by checking UIDs

A check for allowed UIDs is added in the common responder code directly
after accept(). If the platform does not support reading the UID of the
peer but allowed UIDs are configured, access is denied.

Currently only the PAC responder sets the allowed UIDs for a socket. The
default is that only root is allowed to access the socket of the PAC
responder.

Fixes: https://fedorahosted.org/sssd/ticket/1382
---
 src/man/sssd.conf.5.xml | 31 +++++++++++++++++++++++++++----
 1 file changed, 27 insertions(+), 4 deletions(-)

(limited to 'src/man')

diff --git a/src/man/sssd.conf.5.xml b/src/man/sssd.conf.5.xml
index 26748856..ed2d1e05 100644
--- a/src/man/sssd.conf.5.xml
+++ b/src/man/sssd.conf.5.xml
@@ -791,10 +791,6 @@
 
         <refsect2 id='PAC_RESPONDER' condition="with_pac_responder">
             <title>PAC responder configuration options</title>
-            <para>
-                Currently there are no PAC responder specific configuration
-                options.
-            </para>
             <para>
                 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
                             href="include/experimental.xml" />
@@ -822,6 +818,33 @@
                     groups.</para></listitem>
                 </itemizedlist>
             </para>
+            <para>
+                These options can be used to configure the PAC responder.
+            </para>
+            <variablelist>
+                <varlistentry>
+                    <term>allowed_uids (string)</term>
+                    <listitem>
+                        <para>
+                            Specifies the comma-separated list of UID values or
+                            user names that are allowed to access the PAC
+                            responder. User names are resolved to UIDs at
+                            startup.
+                        </para>
+                        <para>
+                            Default: 0 (only the root user is allowed to access
+                            the PAC responder)
+                        </para>
+                        <para>
+                            Please note that although the UID 0 is used as the
+                            default it will be overwritten with this option. If
+                            you still want to allow the root user to access the
+                            PAC responder, which would be the typical case, you
+                            have to add 0 to the list of allowed UIDs as well.
+                        </para>
+                    </listitem>
+                </varlistentry>
+            </variablelist>
         </refsect2>
 
     </refsect1>
-- 
cgit