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CVE-2021-34435

Quick assessment

Affected
The Eclipse Foundation Eclipse Theia
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.

Eclipse Theia是Eclipse基金会的一套基于Visual Studio Code的用于桌面和Web应用程序的开源集成开发环境框架。 Eclipse Theia 0.3.9到1.8.1版本存在访问控制错误漏洞，该漏洞源于“mini-browser”扩展允许用户在IDE内的iframe中预览HTML文件。攻击者可利用该漏洞通过预览的HTML文件触发远程代码执行RCE。此漏洞仅在用户预览恶意文件时发生

AI Predicted 7.3 Difficulty: Easy EPSS 0.60% · P46
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I. Basic Information for CVE-2021-34435

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file..
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
过度许可的跨域白名单
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Theia 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Theia是Eclipse基金会的一套基于Visual Studio Code的用于桌面和Web应用程序的开源集成开发环境框架。 Eclipse Theia 0.3.9到1.8.1版本存在访问控制错误漏洞，该漏洞源于“mini-browser”扩展允许用户在IDE内的iframe中预览HTML文件。攻击者可利用该漏洞通过预览的HTML文件触发远程代码执行RCE。此漏洞仅在用户预览恶意文件时发生
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
The Eclipse Foundation Eclipse Theia 0.3.9 ~ unspecified -

II. Public POCs for CVE-2021-34435

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III. Intelligence Information for CVE-2021-34435

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Other References for CVE-2021-34435 (1)

IV. Related Vulnerabilities

Same product: Eclipse Theia
Same vendor: The Eclipse Foundation
Same weakness: CWE-942

V. Comments for CVE-2021-34435

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