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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-27194] Views should require both &quot;viewOn&quot; and &quot;pipeline&quot; to be specified if modifying view when auth is enabled</title>
                <link>https://jira.mongodb.org/browse/SERVER-27194</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When auth is enabled, we should force users to specify both &quot;viewOn&quot; and &quot;pipeline&quot;. This prevents users from reading sensitive information in the original &quot;viewOn&quot; by only changing &quot;pipeline&quot;, or by exposing more information via lookup in the original &quot;pipeline&quot; by only changing &quot;viewOn&quot;.&lt;/p&gt;

&lt;h5&gt;&lt;a name=&quot;OriginalDescription&quot;&gt;&lt;/a&gt;Original Description&lt;/h5&gt;
&lt;p&gt;In &lt;tt&gt;AuthorizationSession::checkAuthForCreateOrModifyView()&lt;/tt&gt;, &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.4.0-rc5/src/mongo/db/auth/authorization_session.cpp#L490&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;we construct a &lt;tt&gt;NamespaceString&lt;/tt&gt; on the &quot;viewOn&quot; field of the command object&lt;/a&gt;, to make sure that the user has read privileges on that namespace. However, a user can validly collMod an existing view without specifying a new &quot;viewOn&quot;. Because the authorization code always expects &quot;viewOn&quot; to be a field, this scenario causes an exception to be thrown.&lt;/p&gt;

&lt;p&gt;The correct behavior would be to first check if &lt;tt&gt;cmdObj[&quot;viewOn&quot;]&lt;/tt&gt; exists; if it does not, simply skip the call to &lt;tt&gt;checkAuthForAggregate()&lt;/tt&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="334634">SERVER-27194</key>
            <summary>Views should require both &quot;viewOn&quot; and &quot;pipeline&quot; to be specified if modifying view when auth is enabled</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="9">Done</resolution>
                                        <assignee username="kyle.suarez@mongodb.com">Kyle Suarez</assignee>
                                    <reporter username="kyle.suarez@mongodb.com">Kyle Suarez</reporter>
                        <labels>
                            <label>read-only-views</label>
                    </labels>
                <created>Mon, 28 Nov 2016 19:15:35 +0000</created>
                <updated>Wed, 5 Apr 2017 11:42:28 +0000</updated>
                            <resolved>Tue, 6 Dec 2016 22:20:20 +0000</resolved>
                                    <version>3.4.0-rc5</version>
                                    <fixVersion>3.4.1</fixVersion>
                    <fixVersion>3.5.1</fixVersion>
                                    <component>Security</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1450807" author="xgen-internal-githook" created="Tue, 6 Dec 2016 22:19:01 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;ksuarz&apos;, u&apos;name&apos;: u&apos;Kyle Suarez&apos;, u&apos;email&apos;: u&apos;kyle.suarez@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27194&quot; title=&quot;Views should require both &amp;quot;viewOn&amp;quot; and &amp;quot;pipeline&amp;quot; to be specified if modifying view when auth is enabled&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27194&quot;&gt;&lt;del&gt;SERVER-27194&lt;/del&gt;&lt;/a&gt; must specify both viewOn and pipeline if modifying view when auth enabled&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 7ce8f181b87685fbcf6cc93749334c85ce36554e)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c891410987af3998f8caf2d6745a070b3ca428d8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c891410987af3998f8caf2d6745a070b3ca428d8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1450803" author="xgen-internal-githook" created="Tue, 6 Dec 2016 22:17:17 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;ksuarz&apos;, u&apos;name&apos;: u&apos;Kyle Suarez&apos;, u&apos;email&apos;: u&apos;kyle.suarez@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27194&quot; title=&quot;Views should require both &amp;quot;viewOn&amp;quot; and &amp;quot;pipeline&amp;quot; to be specified if modifying view when auth is enabled&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27194&quot;&gt;&lt;del&gt;SERVER-27194&lt;/del&gt;&lt;/a&gt; must specify both viewOn and pipeline if modifying view when auth enabled&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7ce8f181b87685fbcf6cc93749334c85ce36554e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7ce8f181b87685fbcf6cc93749334c85ce36554e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1443705" author="kyle.suarez" created="Mon, 28 Nov 2016 19:22:53 +0000"  >&lt;p&gt;An implication of this bug is that a user who has auth enabled cannot perform a &lt;tt&gt;collMod&lt;/tt&gt; of a view that does not specify the &quot;viewOn&quot; field; for example, only changing the pipeline:&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;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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; db.createView(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;view&quot;&lt;/span&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;, &lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;collection&quot;&lt;/span&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;, [{ $match: { team: &lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;query&quot;&lt;/span&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; } }] );&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;&amp;gt; db.runCommand( { collMod: &lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;view&quot;&lt;/span&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;, pipeline: [{ $sort: { team: -1 } }] } );&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;Users not running with auth enabled aren&apos;t affected by this bug.&lt;/p&gt;

&lt;p&gt;A workaround would be to always specify the &quot;viewOn&quot; field when issuing a &lt;tt&gt;collMod&lt;/tt&gt; command.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10320">
                    <name>Documented</name>
                                                                <inwardlinks description="is documented by">
                                        <issuelink>
            <issuekey id="335981">DOCS-9473</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="326686">SERVER-26765</issuekey>
        </issuelink>
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&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;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;assert.commandWorked(db.createView(&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;view&quot;&lt;/span&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;, &lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;collection&quot;&lt;/span&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;, [{ $match: { team: &lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;query&quot;&lt;/span&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; } }] ));&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;assert.commandWorked(db.runCommand( { collMod: &lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;view&quot;&lt;/span&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;, pipeline: [{ $sort: { team: -1 } }] } ));&lt;/span&gt;&lt;/pre&gt;
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