一、 漏洞 CVE-2023-4220 基础信息
漏洞信息
# Chamilo LMS 未经认证的大文件上传远程代码执行漏洞

## 概述
Chamilo LMS中`/main/inc/lib/javascript/bigupload/inc/bigUpload.php`的大型文件上传功能存在不受限制的文件上传漏洞，允许未认证的攻击者执行存储型跨站脚本攻击并获取远程代码执行权限。

## 影响版本
Chamilo LMS <= v1.11.24

## 细节
攻击者可以通过上传包含恶意代码的Web shell来利用此漏洞。该漏洞存在于大型文件上传功能中，未对上传的文件进行适当的检查和限制。

## 影响
未认证的攻击者可以利用此漏洞执行存储型跨站脚本攻击和获取远程代码执行权限，从而控制服务器并执行任意命令。
备注
尽管我们采用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。
神龙会尽力确保数据准确，但也请结合实际情况进行甄别与判断。
神龙祝您一切顺利！
漏洞标题
Chamilo LMS Unauthenticated Big Upload File Remote Code Execution
来源：美国国家漏洞数据库 NVD
漏洞描述信息
Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in Chamilo LMS <= v1.11.24 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via uploading of web shell.
来源：美国国家漏洞数据库 NVD
CVSS信息
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
来源：美国国家漏洞数据库 NVD
漏洞类别
危险类型文件的不加限制上传
来源：美国国家漏洞数据库 NVD
漏洞标题
Chamilo LMS 安全漏洞
来源：中国国家信息安全漏洞库 CNNVD
漏洞描述信息
Chamilo LMS是Chamilo协会的一套开源的在线学习和协作系统。该系统支持创建教学内容、远程培训和在线答题等。 Chamilo LMS v1.11.24 版本及之前版本存在安全漏洞，该漏洞源于 “/main/inc/lib/javascript/bigupload/inc/bigUpload.php”页面存在大文件上传功能存在不受限制的文件上传。
来源：中国国家信息安全漏洞库 CNNVD
CVSS信息
N/A
来源：中国国家信息安全漏洞库 CNNVD
漏洞类别
其他
来源：中国国家信息安全漏洞库 CNNVD
二、漏洞 CVE-2023-4220 的公开POC
# POC 描述 源链接 神龙链接
1 This is a script written in Python that allows the exploitation of the Chamilo's LMS software security flaw described in CVE-2023-4220 https://github.com/m3m0o/chamilo-lms-unauthenticated-big-upload-rce-poc POC详情
2 Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in Chamilo LMS <= v1.11.24 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via uploading of web shell. https://github.com/dollarboysushil/Chamilo-LMS-Unauthenticated-File-Upload-CVE-2023-4220 POC详情
3 https://starlabs.sg/advisories/23/23-4220/ https://github.com/charlesgargasson/CVE-2023-4220 POC详情
4 CVE-2023-4220 POC RCE https://github.com/insomnia-jacob/CVE-2023-4220- POC详情
5 This is an Exploit for Unrestricted file upload in big file upload functionality in Chamilo-LMS for this location "/main/inc/lib/javascript/bigupload/inc/bigUpload.php" in Chamilo LMS <= v1.11.24, and Attackers can obtain remote code execution via uploading of web shell. https://github.com/Ziad-Sakr/Chamilo-LMS-CVE-2023-4220-Exploit POC详情
6 This is an Exploit for Unrestricted file upload in big file upload functionality in Chamilo-LMS for this location "/main/inc/lib/javascript/bigupload/inc/bigUpload.php" in Chamilo LMS <= v1.11.24, and Attackers can obtain remote code execution via uploading of web shell. https://github.com/Ziad-Sakr/Chamilo-CVE-2023-4220-Exploit POC详情
7 PoC for CVE-2023-4220 - Chamilo LMS - Unauthenticated File Upload in BigUpload https://github.com/HO4XXX/cve-2023-4220-poc POC详情
8 Proof of concept exploit for CVE-2023-4220 https://github.com/B1TC0R3/CVE-2023-4220-PoC POC详情
9 CVE-2023–4220 Exploit https://github.com/nr4x4/CVE-2023-4220 POC详情
10 LMS Chamilo 1.11.24 CVE-2023-4220 Exploit https://github.com/Al3xGD/CVE-2023-4220-Exploit POC详情
11 CVE-2023-4220 POC RCE https://github.com/insomnia-jacob/CVE-2023-4220 POC详情
12 This is a script written in Python that allows the exploitation of the Chamilo's LMS software security flaw described in CVE-2023-4220 https://github.com/charchit-subedi/chamilo-lms-unauthenticated-rce-poc POC详情
13 Chamilo LMS Unauthenticated Big Upload File that allows remote code execution https://github.com/LGenAgul/CVE-2023-4220-Proof-of-concept POC详情
14 None https://github.com/VanishedPeople/CVE-2023-4220 POC详情
15 Python exploit for Chamilo Unrestricted File Upload Vuln - CVE-2023-4220 https://github.com/thefizzyfish/CVE-2023-4220 POC详情
16 CVE-2023-4220 Chamilo Exploit https://github.com/qrxnz/CVE-2023-4220 POC详情
17 (CVE-2023-4220) Chamilo LMS Unauthenticated Big Upload File Remote Code Execution https://github.com/0x00-null/-Chamilo-CVE-2023-4220-RCE-Exploit POC详情
18 (CVE-2023-4220) Chamilo LMS Unauthenticated Big Upload File Remote Code Execution https://github.com/0x00-null/Chamilo-CVE-2023-4220-RCE-Exploit POC详情
19 None https://github.com/bueno-armando/CVE-2023-4220-RCE POC详情
20 Refurbish Chamilo LMS CVE-2023-4220 exploit written in bash https://github.com/TanveerS1ngh/Chamilo-LMS-CVE-2023-4220-Exploit POC详情
21 CVE-2023-4220 Chamilo Exploit https://github.com/H4cking4All/CVE-2023-4220 POC详情
22 Python exploit for Chamilo Unrestricted File Upload Vuln - CVE-2023-4220 https://github.com/thefizzyfish/CVE-2023-4220_Chamilo_RCE POC详情
23 None https://github.com/oxapavan/CVE-2023-4220-HTB-PermX POC详情
24 Refurbish Chamilo LMS CVE-2023-4220 exploit written in bash https://github.com/0xDTC/Chamilo-LMS-CVE-2023-4220-Exploit POC详情
25 https://nvd.nist.gov/vuln/detail/CVE-2023-4220 https://github.com/numaan911098/CVE-2023-4220 POC详情
26 Remote command execution exploit made for redteamers. https://github.com/MikeyPPPPPPPP/CVE-2023-4220 POC详情
27 Carga de archivos sin restricciones en la funcionalidad de carga de archivos grandes en `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` en Chamilo LMS en versiones <= 1.11.24 permite a atacantes no autenticados realizar ataques de Cross Site Scripting almacenados y obtener código remoto ejecución mediante la carga de web shell. https://github.com/Pr1or95/CVE-2023-4220-exploit POC详情
28 Exploit for CVE-2023-4220 https://github.com/zora-beep/CVE-2023-4220 POC详情
29 Chamilo LMS Unauthenticated Remote Code Execution https://github.com/N1ghtfallXxX/CVE-2023-4220 POC详情
30 CVE-2023-4220 POC RCE https://github.com/gmh5225/CVE-2023-4220 POC详情
31 Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in Chamilo LMS <= v1.11.24 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via uploading of web shell. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-4220.yaml POC详情
三、漏洞 CVE-2023-4220 的情报信息