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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
    </build-info>


<item>
            <title>[SERVER-69464] &quot;Attempt to switch user during SASL authentication&quot; error when cluster is configured for x509 membership auth</title>
                <link>https://jira.mongodb.org/browse/SERVER-69464</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I&apos;m able to easily reproduce the issue from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-58591&quot; title=&quot;Better instrumentation for TLS authentication problem during concurrent tenant migration&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-58591&quot;&gt;&lt;del&gt;SERVER-58591&lt;/del&gt;&lt;/a&gt; on v6.0:&lt;/p&gt;
&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;I don&apos;t think there is anything wrong with the config as user connections are not required for the issue to manifest.&lt;/p&gt;

&lt;p&gt;This looks to be a benign issue as I don&apos;t see any functional problems with how the cluster is operating. But the fact that it is raised as an error is concerning the users.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2129566">SERVER-69464</key>
            <summary>&quot;Attempt to switch user during SASL authentication&quot; error when cluster is configured for x509 membership auth</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="backlog-server-security">Backlog - Security Team</assignee>
                                    <reporter username="dmitry.ryabtsev@mongodb.com">Dmitry Ryabtsev</reporter>
                        <labels>
                    </labels>
                <created>Tue, 6 Sep 2022 07:50:10 +0000</created>
                <updated>Mon, 10 Jul 2023 14:15:21 +0000</updated>
                            <resolved>Tue, 25 Oct 2022 16:41:06 +0000</resolved>
                                    <version>5.0.8</version>
                    <version>6.0.0</version>
                                                    <component>Security</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4926062" author="spencer.jackson@10gen.com" created="Tue, 25 Oct 2022 16:41:06 +0000"  >&lt;p&gt;I just did some digging into &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70242&quot; title=&quot;Intracluster X509 authentication can trigger &amp;quot;Different user name was supplied to saslSupportedMechs&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70242&quot;&gt;&lt;del&gt;SERVER-70242&lt;/del&gt;&lt;/a&gt; and realized that these are probably the same issue. I&apos;m going to close this ticket in favor of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70242&quot; title=&quot;Intracluster X509 authentication can trigger &amp;quot;Different user name was supplied to saslSupportedMechs&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70242&quot;&gt;&lt;del&gt;SERVER-70242&lt;/del&gt;&lt;/a&gt;, because that ticket has root cause and potential mitigations in its description.&lt;/p&gt;</comment>
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                            <issuelinktype id="10012">
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                            <customfieldvalue>&lt;p&gt;1. Create cluster&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;mlaunch init --replicaset --nodes 1 --sharded 1 --config 1 --csrs --tlsCAFile CA.pem --tlsMode preferTLS --tlsCertificateKeyFile server.pem --bind_ip_all --clusterAuthMode x509 --setParameter authenticationMechanisms=PLAIN,SCRAM-SHA-256,SCRAM-SHA-1&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt; 
&lt;p&gt;2. Connect:&lt;/p&gt;
&lt;p/&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;mongo --tls --tlsCertificateKeyFile server.pem --tlsCAFile CA.pem --authenticationMechanism MONGODB-X509 --authenticationDatabase &apos;$external&apos; &lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;
&lt;p&gt;3. In my case &lt;tt&gt;mlaunch&lt;/tt&gt; is failing to add shard. So need to run the following manually:&lt;/p&gt;
&lt;p/&gt;
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&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;sh.addShard(&quot;shard01/localhost:27018&quot;)&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;
&lt;p&gt;4. In the log of the shard process observe the error as in the description. User connections are not required&lt;/p&gt;</customfieldvalue>

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