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0.3 

git-svn-id: file:///home/ksmith/gitmigration/svn/xmpp/trunk@3272 4b5297f7-1745-476d-ba37-a9c6900126ab
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Peter Saint-Andre 2009-06-22 18:53:08 +00:00
parent 5159fa7e31
commit b18a9bf29c
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xep-0249.xml
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@ -22,6 +22,12 @@
<supersededby/>
<shortname>x-conference</shortname>
&stpeter;
<revision>
<version>0.3</version>
<date>2009-06-22</date>
<initials>psa</initials>
<remark><p>Defined several possible security attacks along with solutions.</p></remark>
</revision>
<revision>
<version>0.2</version>
<date>2009-03-30</date>
@ -115,7 +121,14 @@
</section1>
<section1 topic='Security Considerations' anchor='security'>
<p>There are no known security concerns related to this protocol.</p>
<p>The following attacks are possible, in roughly the order of probability. See also &xep0205; and &rfc3552;.</p>
<ol>
<li><p>The sender of an invitation could overload the 'reason' attribute with malicious or offensive text. The recipient can mitigate this attack by blocking the sender using technologies such as &xep0016; and &xep0191;.</p></li>
<li><p>A passive attacker could flood the recipient with a large number of chatroom invitations. This attack, too, can be mitigated with <cite>Privacy Lists</cite> or <cite>Simple Communications Blocking</cite>.</p></li>
<li><p>A passive attacker could use a mimicked JID to fool the recipient into thinking that the sender is a known or trusted contact. This attack requires knowledge of the recipient's known or trusted contacts, and can be mitigated by following the recommendations in &xep0165;.</p></li>
<li><p>In the absence of end-to-end encryption, a passive attacker could eavesdrop on the chatroom invitations that a user sends or receives.</p></li>
<li><p>In the absence of end-to-end encryption or signing, an active attacker could modify the invitation in transit so that the recipient is directed to a different room than intended by the sender.</p></li>
</ol>
</section1>
<section1 topic='IANA Considerations' anchor='iana'>