/mandos/release

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/release

« back to all changes in this revision

Viewing changes to mandos.conf.xml

  • Committer: Teddy Hogeborn
  • Date: 2015-03-10 18:03:38 UTC
  • mto: (237.7.304 trunk)
  • mto: This revision was merged to the branch mainline in revision 325.
  • Revision ID: teddy@recompile.se-20150310180338-pcxw6r2qmw9k6br9
Add ":!RSA" to GnuTLS priority string, to disallow non-DHE kx.

If Mandos was somehow made to use a non-ephemeral Diffie-Hellman key
exchange algorithm in the TLS handshake, any saved network traffic
could then be decrypted later if the Mandos client key was obtained.
By default, Mandos uses ephemeral DH key exchanges which does not have
this problem, but a non-ephemeral key exchange algorithm was still
enabled by default.  The simplest solution is to simply turn that off,
which ensures that Mandos will always use ephemeral DH key exchanges.

There is a "PFS" priority string specifier, but we can't use it because:

1. Security-wise, it is a mix between "NORMAL" and "SECURE128" - it
   enables a lot more algorithms than "SECURE256".

2. It is only available since GnuTLS 3.2.4.

Thanks to Andreas Fischer <af@bantuX.org> for reporting this issue.

Show diffs side-by-side

added added

removed removed

Lines of Context:
3
3
        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4
4
<!ENTITY CONFNAME "mandos.conf">
5
5
<!ENTITY CONFPATH "<filename>/etc/mandos/mandos.conf</filename>">
6
 
<!ENTITY TIMESTAMP "2011-08-08">
 
6
<!ENTITY TIMESTAMP "2013-10-23">
7
7
<!ENTITY % common SYSTEM "common.ent">
8
8
%common;
9
9
]>
20
20
        <firstname>Björn</firstname>
21
21
        <surname>Påhlsson</surname>
22
22
        <address>
23
 
          <email>belorn@fukt.bsnet.se</email>
 
23
          <email>belorn@recompile.se</email>
24
24
        </address>
25
25
      </author>
26
26
      <author>
27
27
        <firstname>Teddy</firstname>
28
28
        <surname>Hogeborn</surname>
29
29
        <address>
30
 
          <email>teddy@fukt.bsnet.se</email>
 
30
          <email>teddy@recompile.se</email>
31
31
        </address>
32
32
      </author>
33
33
    </authorgroup>
35
35
      <year>2008</year>
36
36
      <year>2009</year>
37
37
      <year>2011</year>
 
38
      <year>2012</year>
 
39
      <year>2013</year>
38
40
      <holder>Teddy Hogeborn</holder>
39
41
      <holder>Björn Påhlsson</holder>
40
42
    </copyright>
119
121
        <term><option>priority<literal> = </literal><replaceable
120
122
        >STRING</replaceable></option></term>
121
123
        <listitem>
122
 
          <xi:include href="mandos-options.xml" xpointer="priority"/>
 
124
          <xi:include href="mandos-options.xml"
 
125
                      xpointer="priority_compat"/>
123
126
        </listitem>
124
127
      </varlistentry>
125
128
      
154
157
        </listitem>
155
158
      </varlistentry>
156
159
      
 
160
      <varlistentry>
 
161
        <term><option>restore<literal> = </literal>{ <literal
 
162
          >1</literal> | <literal>yes</literal> | <literal
 
163
          >true</literal> | <literal>on</literal> | <literal
 
164
          >0</literal> | <literal>no</literal> | <literal
 
165
          >false</literal> | <literal>off</literal> }</option></term>
 
166
        <listitem>
 
167
          <xi:include href="mandos-options.xml" xpointer="restore"/>
 
168
        </listitem>
 
169
      </varlistentry>
 
170
      
 
171
      <varlistentry>
 
172
        <term><option>statedir<literal> = </literal><replaceable
 
173
        >DIRECTORY</replaceable></option></term>
 
174
        <listitem>
 
175
          <xi:include href="mandos-options.xml" xpointer="statedir"/>
 
176
        </listitem>
 
177
      </varlistentry>
 
178
      
 
179
      <varlistentry>
 
180
        <term><option>socket<literal> = </literal><replaceable
 
181
        >NUMBER</replaceable></option></term>
 
182
        <listitem>
 
183
          <xi:include href="mandos-options.xml" xpointer="socket"/>
 
184
        </listitem>
 
185
      </varlistentry>
 
186
      
157
187
    </variablelist>
158
188
  </refsect1>
159
189
  
198
228
servicename = Daena
199
229
use_dbus = False
200
230
use_ipv6 = True
 
231
restore = True
 
232
statedir = /var/lib/mandos
201
233
      </programlisting>
202
234
    </informalexample>
203
235
  </refsect1>