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CVE-2021-41152— Path Traversal in Folder Component Leading to Local File Inclusion

Quick assessment

Affected
OpenOLAT OpenOLAT
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenOLAT是一个基于网络的电子学习平台，用于教学、学习、评估和交流，一个 LMS，一个学习管理系统。 OpenOlat 存在安全漏洞，该漏洞源于攻击者可以通过操纵 HTTP 请求来修改文件夹组件中所请求文件下载的路径，以指向目标系统上的任何位置。该攻击可用于读取 Web 根文件夹或外部可访问的任何文件，具体取决于系统配置和应用服务器用户正确配置的权限。攻击需要 OpenOlat 用户帐户或启用的访客用户功能以及在课程中使用文件夹组件。该攻击不允许写入任意文件，它只允许读取文件，并且只允许准备好攻击者

CVSS 7.7 · High EPSS 1.24% · P67

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2021-41152

Vulnerability Information
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Vulnerability Title
Path Traversal in Folder Component Leading to Local File Inclusion
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenOlat 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenOLAT是一个基于网络的电子学习平台，用于教学、学习、评估和交流，一个 LMS，一个学习管理系统。 OpenOlat 存在安全漏洞，该漏洞源于攻击者可以通过操纵 HTTP 请求来修改文件夹组件中所请求文件下载的路径，以指向目标系统上的任何位置。该攻击可用于读取 Web 根文件夹或外部可访问的任何文件，具体取决于系统配置和应用服务器用户正确配置的权限。攻击需要 OpenOlat 用户帐户或启用的访客用户功能以及在课程中使用文件夹组件。该攻击不允许写入任意文件，它只允许读取文件，并且只允许准备好攻击者
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenOLAT OpenOLAT < 15.5.8 -

II. Public POCs for CVE-2021-41152

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III. Intelligence Information for CVE-2021-41152

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Patches & Fixes for CVE-2021-41152 (1)

Vendor Advisories for CVE-2021-41152 (1)

Other References for CVE-2021-41152 (1)

IV. Related Vulnerabilities

Same product: OpenOLAT
Same vendor: OpenOLAT
Same weakness: CWE-22

V. Comments for CVE-2021-41152

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