frentix openolat 对路径名的限制不恰当（路径遍历）

CVE编号

CVE-2021-41152

利用情况

暂无

补丁情况

N/A

披露时间

2021-10-19

漏洞描述

OpenOlat is a web-based e-learning platform for teaching, learning, assessment and communication, an LMS, a learning management system. In affected versions by manipulating the HTTP request an attacker can modify the path of a requested file download in the folder component to point to anywhere on the target system. The attack could be used to read any file accessible in the web root folder or outside, depending on the configuration of the system and the properly configured permission of the application server user. The attack requires an OpenOlat user account or the enabled guest user feature together with the usage of the folder component in a course. The attack does not allow writing of arbitrary files, it allows only reading of files and also only ready of files that the attacker knows the exact path which is very unlikely at least for OpenOlat data files. The problem is fixed in version 15.5.8 and 16.0.1 It is advised to upgrade to version 16.0.x. There are no known workarounds to fix this problem, an upgrade is necessary.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://github.com/OpenOLAT/OpenOLAT/commit/418bb509ffcb0e25ab4390563c6c47f0458583eb
https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-m8j5-837g-2p3f
https://jira.openolat.org/browse/OO-5696

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	应用	frentix	openolat	*		Up to (excluding) 15.5.8

CVSS3评分 7.7

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 低
• 影响范围 已更改
• 用户交互 无
• 可用性 无
• 保密性 高
• 完整性 无

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CWE-ID 漏洞类型 CWE-22 对路径名的限制不恰当（路径遍历） CWE-23 相对路径遍历