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<p class="MsoNormal"><a name="_Hlk122600425">Good afternoon,</a><span style="mso-bookmark:_Hlk122600425"><span style="mso-ligatures:none"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">The SOC Services team is reporting on the vulnerability:</span><span style="mso-bookmark:_Hlk122600425"><span style="font-family:"Arial",sans-serif;mso-ligatures:none">
</span><b>CVE-2023-14667: Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability</b>. Due to its high visibility and knowledge of the software installed in the state environment, we are providing this in-depth information:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>History</u></b>: On November 6, 2018, Red Hat released a security advisory warning about a RichFaces Framework Expression Language injection via UserResource vulnerability; At that time the
CVE was registered as <b>CVE-2018-14667</b>. A remote unauthenticated attacker could exploit this vulnerability to execute arbitrary code using a chain of java serialized objects via org.ajax4jsf.resource.UserResource$UriData. On September 28, 2023 CISA added
the updated <b>CVE-2023-14667 </b>to the Known Exploited Vulnerability Catalog.<span style="background:yellow;mso-highlight:yellow"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><span style="background:yellow;mso-highlight:yellow"><o:p> </o:p></span></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">The following products are affected:<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-bookmark:_Hlk122600425">JBoss Enterprise Application Platform 5 for RHEL 6 x86_64<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-bookmark:_Hlk122600425">JBoss Enterprise Application Platform 5 for RHEL 6 i386<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-bookmark:_Hlk122600425">JBoss Enterprise Application Platform 5 for RHEL 5 x86_64<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1"><span style="mso-bookmark:_Hlk122600425">JBoss Enterprise Application Platform 5 for RHEL 5 i386<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><span style="background:yellow;mso-highlight:yellow"><o:p> </o:p></span></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">Fixes in order of release:<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoNormal" style="mso-list:l2 level1 lfo2"><span style="mso-bookmark:_Hlk122600425"></span><a href="https://bugzilla.redhat.com/show_bug.cgi?id=1639139" target="_blank"><span style="mso-bookmark:_Hlk122600425">BZ - 1639139</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"> -
CVE-2018-14667 RichFaces: Expression Language injection via UserResource allows for unauthenticated remote code execution<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l2 level1 lfo2"><span style="mso-bookmark:_Hlk122600425"></span><a href="https://bugzilla.redhat.com/show_bug.cgi?id=1640767" target="_blank"><span style="mso-bookmark:_Hlk122600425">BZ - 1640767</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"> -
Tracker bug for the EAP 5.2.0 release for RHEL-5.<o:p></o:p></span></li><li class="MsoNormal" style="color:#252525;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo2;background:white">
<span style="mso-bookmark:_Hlk122600425"></span><a href="https://bugzilla.redhat.com/show_bug.cgi?id=1639139" target="_blank"><span style="mso-bookmark:_Hlk122600425"><span style="color:#0066CC;text-decoration:none">BZ - 1639139</span></span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"> -
</span><span style="mso-bookmark:_Hlk122600425"><span style="color:black">CVE-2018-14667 RichFaces: Expression Language injection via UserResource allows for unauthenticated remote code execution</span></span><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></li><li class="MsoNormal" style="color:#252525;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo2;background:white;box-sizing: border-box">
<span style="mso-bookmark:_Hlk122600425"></span><a href="https://bugzilla.redhat.com/show_bug.cgi?id=1640782" target="_blank"><span style="mso-bookmark:_Hlk122600425"><span style="color:#0066CC;text-decoration:none">BZ - 1640782</span></span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"> -
</span><span style="mso-bookmark:_Hlk122600425"><span style="color:black">Tracker bug for the EAP 5.2.0 release for RHEL-6.</span></span><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo2;background:white">
<span style="mso-bookmark:_Hlk122600425"></span><a href="https://bugzilla.redhat.com/show_bug.cgi?id=1639139" target="_blank"><span style="mso-bookmark:_Hlk122600425"><span style="color:#004080">BZ - 1639139</span></span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"><span style="color:#252525"> -
</span></span><span style="mso-bookmark:_Hlk122600425"><span style="color:black">CVE-2018-14667 RichFaces: Expression Language injection via UserResource allows for unauthenticated remote code execution</span></span><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l2 level1 lfo2"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></li></ul>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425">Red Hat has released advisories related to CVE-2023-14667 (Previously CVE-2018-14667) which can be found below:<o:p></o:p></span></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo3"><span style="mso-bookmark:_Hlk122600425"></span><a href="https://access.redhat.com/errata/RHSA-2018:3517"><span style="mso-bookmark:_Hlk122600425">https://access.redhat.com/errata/RHSA-2018:3517</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo3"><span style="mso-bookmark:_Hlk122600425"></span><a href="https://access.redhat.com/errata/RHSA-2018:3518"><span style="mso-bookmark:_Hlk122600425">https://access.redhat.com/errata/RHSA-2018:3518</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo3"><span style="mso-bookmark:_Hlk122600425"></span><a href="https://access.redhat.com/errata/RHSA-2018:3519"><span style="mso-bookmark:_Hlk122600425">https://access.redhat.com/errata/RHSA-2018:3519</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo3"><span style="mso-bookmark:_Hlk122600425"></span><a href="https://access.redhat.com/errata/RHSA-2018:3581"><span style="mso-bookmark:_Hlk122600425">https://access.redhat.com/errata/RHSA-2018:3581</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>Intelligence</u></b>: As of September 28, 2023, the vulnerability has been confirmed as being exploited in the wild.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u><span style="background:yellow;mso-highlight:yellow"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>Workarounds:</u></b> To mitigate this vulnerability, customers are advised to disable Expression Language evaluation in RichFaces; or, if this is not feasible, to add sanitization of any Expression
Language received from untrusted sources. Expression Language whitelisting could be added after ResourceBuilderImpl class in its getResourceDataForKey method invokes LookAheadObjectInputStream<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u><span style="background:yellow;mso-highlight:yellow"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>How it works</u></b>: The vulnerability is executed to allow unauthenticated users to perform remote code execution on any web application using RichFaces 3.X. A payload is generated then sent
to the server to get remote code execution once the code has been remotely executed the attacker would have access to the web application.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><span style="background:yellow;mso-highlight:yellow"><o:p> </o:p></span></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>Post-Exploit</u></b>: Upon successful exploitation of the vulnerability, a threat actor could execute arbitrary java code or possibly system code.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><span style="background:yellow;mso-highlight:yellow"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="mso-bookmark:_Hlk122600425">As of November 14, 2018, the following vulnerability plugin has been released and is currently in Tenable Security Center:<o:p></o:p></span></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse">
<tbody>
<tr>
<td width="119" valign="top" style="width:89.5pt;border:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425"><b><u>Plugin<o:p></o:p></u></b></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425"><b><u>Title<o:p></o:p></u></b></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425"><b><u>Severity<o:p></o:p></u></b></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425"></span><a href="https://www.tenable.com/plugins/nessus/118943"><span style="mso-bookmark:_Hlk122600425">118943</span><span style="mso-bookmark:_Hlk122600425"></span></a><span style="mso-bookmark:_Hlk122600425"><o:p></o:p></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425">RHEL 6 : JBoss EAP (RHSA-2018:3517)<o:p></o:p></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><span style="mso-bookmark:_Hlk122600425">Critical<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="mso-bookmark:_Hlk122600425"><b><u>Recommended Actions</u></b>:<o:p></o:p></span></p>
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<li class="MsoNormal" style="mso-list:l1 level1 lfo4"><span style="mso-bookmark:_Hlk122600425">Verify host has not been compromised before applying patches.<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo4"><span style="mso-bookmark:_Hlk122600425">Apply appropriate updates provided by vendor to vulnerable systems immediately after appropriate testing.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l1 level1 lfo4"><span style="mso-bookmark:_Hlk122600425">Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l1 level1 lfo4"><span style="mso-bookmark:_Hlk122600425">Apply the Principle of Least Privilege to all systems and services.<o:p></o:p></span></li></ul>
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