svn commit: r515330 - head/security/vuxml

Thu Oct 24 10:38:57 UTC 2019

Author: rodrigo
Date: Thu Oct 24 10:38:56 2019
New Revision: 515330
URL: https://svnweb.freebsd.org/changeset/ports/515330

Log:
  Document potential bypass of Runas user restrictions in sudo
  
  PR:		241244
  Submitted by:	Yasuhiro KIMURA <yasu at utahime.org>

Modified:
  head/security/vuxml/vuln.xml

Modified: head/security/vuxml/vuln.xml
==============================================================================

--- head/security/vuxml/vuln.xml	Thu Oct 24 10:28:03 2019	(r515329)
+++ head/security/vuxml/vuln.xml	Thu Oct 24 10:38:56 2019	(r515330)
@@ -58,6 +58,42 @@ Notes:
   * Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
 -->
 <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+  <vuln vid="3a1474ba-f646-11e9-b0af-b888e347c638">
+    <topic>sudo -- Potential bypass of Runas user restrictions</topic>
+    <affects>
+      <package>
+       <name>sudo</name>
+       <range><lt>1.8.28</lt></range>
+      </package>
+    </affects>
+    <description>
+      <body xmlns="http://www.w3.org/1999/xhtml">
+       <p>Todd C. Miller reports:</p>
+       <blockquote cite="https://www.sudo.ws/alerts/minus_1_uid.html">
+	 <p>When sudo is configured to allow a user to run commands as an
+	  arbitrary user via the ALL keyword in a Runas specification, it
+	  is possible to run commands as root by specifying the user ID -1
+	  or 4294967295.</p>
+	 <p>This can be used by a user with sufficient sudo privileges to
+	  run commands as root even if the Runas specification explicitly
+	  disallows root access as long as the ALL keyword is listed first
+	  in the Runas specification.</p>
+	 <p>Log entries for commands run this way will list the target user
+	  as 4294967295 instead of root. In addition, PAM session modules
+	  will not be run for the command.</p>
+       </blockquote>
+      </body>
+    </description>
+    <references>
+      <url>https://www.sudo.ws/alerts/minus_1_uid.html</url>
+      <cvename>CVE-2019-14287</cvename>
+    </references>
+    <dates>
+      <discovery>2019-10-15</discovery>
+      <entry>2019-10-24</entry>
+    </dates>
+  </vuln>
+
   <vuln vid="a90d040e-f5b0-11e9-acc4-4576b265fda6">
     <topic>Loofah -- XSS vulnerability</topic>
     <affects>
