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CVE-2021-22539— Code execution in VSCode-bazel via malicious Bazel config files

Quick assessment

Affected
Google LLC VSCode-Bazel
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.

Philipp Wollermann vscode-bazel是Philipp Wollermann开源的一个应用软件。用于Visual Studio Code的Bazel插件。 VScode-bazel 0.4.1之前版本存在安全漏洞，攻击者可利用该漏洞可以通过vscode-bazel在系统上执行任何可执行文件。

CVSS 8.2 · High EPSS 0.31% · P24

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-22539

Vulnerability Information
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Vulnerability Title
Code execution in VSCode-bazel via malicious Bazel config files
Source: CVE Program / CVE List V5
Vulnerability Description
An attacker can place a crafted JSON config file into the project folder pointing to a custom executable. VScode-bazel allows the workspace path to lint *.bzl files to be set via this config file. As such the attacker is able to execute any executable on the system through vscode-bazel. We recommend upgrading to version 0.4.1 or above.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Philipp Wollermann VScode-bazel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Philipp Wollermann vscode-bazel是Philipp Wollermann开源的一个应用软件。用于Visual Studio Code的Bazel插件。 VScode-bazel 0.4.1之前版本存在安全漏洞，攻击者可利用该漏洞可以通过vscode-bazel在系统上执行任何可执行文件。
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
Google LLC VSCode-Bazel unspecified ~ 0.4.0 -

II. Public POCs for CVE-2021-22539

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III. Intelligence Information for CVE-2021-22539

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Patches & Fixes for CVE-2021-22539 (1)

IV. Related Vulnerabilities

Same vendor: Google LLC
Same weakness: CWE-73