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    <title>MongoDB Jira</title>
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    <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>
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<item>
            <title>[DRIVERS-2171] Document or prohibit unix domain sockets in srv records</title>
                <link>https://jira.mongodb.org/browse/DRIVERS-2171</link>
                <project id="10980" key="DRIVERS">Drivers</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/specifications/blob/master/source/initial-dns-seedlist-discovery/initial-dns-seedlist-discovery.rst#specification&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/specifications/blob/master/source/initial-dns-seedlist-discovery/initial-dns-seedlist-discovery.rst#specification&lt;/a&gt; says:&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;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 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;&amp;gt;  The format [of the connection string] is:&lt;/span&gt;&lt;/pre&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&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-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;mongodb+srv://{hostname}.{domainname}/{options}&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;This is however misleading, because in addition to DNS hostnames the drivers also accept unix domain socket paths. Coupled with DNS seed list discovery, this permits an attacker able to forge DNS responses to force a driver to establish local unix socket connections. I think this behavior will come as a surprise to system administrators tasked with security policy compliance.&lt;/p&gt;

&lt;p&gt;I think DNS seed list discovery spec should either be amended to explicitly acknowledge that DNS records can resolve to local socket connections, or prohibit the driver from accepting unix socket paths from DNS records.&lt;/p&gt;</description>
                <environment></environment>
        <key id="836135">DRIVERS-2171</key>
            <summary>Document or prohibit unix domain sockets in srv records</summary>
                <type id="14901" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14700&amp;avatarType=issuetype">Spec Change</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="oleg.pudeyev@mongodb.com">Oleg Pudeyev</reporter>
                        <labels>
                    </labels>
                <created>Fri, 5 Jul 2019 19:12:13 +0000</created>
                <updated>Tue, 19 Sep 2023 10:44:11 +0000</updated>
                                                                <component>Connection String</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
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