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CVE-2024-51499— MarkUs Arbitrary File Write leading up to remote code execution (student accounts)

Quick assessment

Affected
MarkUsProject Markus
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.

MarkUs是MarkUs开源的一个 Ruby on Rails 和 React web 应用程序，用于提交和评分学生作业。 MarkUs v2.4.8之前版本存在代码问题漏洞，该漏洞源于存在任意文件写入漏洞，允许经过身份验证的用户将任意文件写入服务器上的任何位置。

AI Predicted 7.5 Difficulty: Easy EPSS 0.70% · P50
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I. Basic Information for CVE-2024-51499

Vulnerability Information
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Vulnerability Title
MarkUs Arbitrary File Write leading up to remote code execution (student accounts)
Source: CVE Program / CVE List V5
Vulnerability Description
MarkUs is a web application for the submission and grading of student assignments. In versions prior to 2.4.8, an arbitrary file write vulnerability accessible via the update_files method of the SubmissionsController allows authenticated users (e.g. students) to write arbitrary files to any location on the web server MarkUs is running on (depending on the permissions of the underlying filesystem). e.g. This can lead to a delayed remote code execution in case an attacker is able to write a Ruby file into the config/initializers/ subfolder of the Ruby on Rails application. MarkUs v2.4.8 has addressed this issue. No known workarounds are available at the application level aside from upgrading.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
MarkUs 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MarkUs是MarkUs开源的一个 Ruby on Rails 和 React web 应用程序，用于提交和评分学生作业。 MarkUs v2.4.8之前版本存在代码问题漏洞，该漏洞源于存在任意文件写入漏洞，允许经过身份验证的用户将任意文件写入服务器上的任何位置。
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
MarkUsProject Markus < 2.4.8 -

II. Public POCs for CVE-2024-51499

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III. Intelligence Information for CVE-2024-51499

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Same Patch Batch · MarkUsProject · 2024-11-18 · 3 CVEs total

CVE-2024-47820 5.7 MEDIUM MarkUs vulnerable to Path Traversal
CVE-2024-51743 Arbitrary File Write leading up to remote code execution (instructor accounts)

IV. Related Vulnerabilities

Same product: Markus
Same vendor: MarkUsProject
Same weakness: CWE-434

V. Comments for CVE-2024-51499

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