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CVE-2021-21413— Misuse of `Reference` and other transferable APIs may lead to access to nodejs isolate

Quick assessment

Affected
laverdet isolated-vm
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.

Marcel Laverdet isolated-vm是Marcel Laverdet开源的一个应用程序。用于nodejs的库，可访问v8的Isolate界面。 isolated-vm 存在安全漏洞，该漏洞源于存在API缺陷，攻击者可利用该漏洞获取对nodejs上下文的函数对象的引用。

CVSS 8.0 · High EPSS 0.71% · P52
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I. Basic Information for CVE-2021-21413

Vulnerability Information
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Vulnerability Title
Misuse of `Reference` and other transferable APIs may lead to access to nodejs isolate
Source: CVE Program / CVE List V5
Vulnerability Description
isolated-vm is a library for nodejs which gives you access to v8's Isolate interface. Versions of isolated-vm before v4.0.0 have API pitfalls which may make it easy for implementers to expose supposed secure isolates to the permissions of the main nodejs isolate. Reference objects allow access to the underlying reference's full prototype chain. In an environment where the implementer has exposed a Reference instance to an attacker they would be able to use it to acquire a Reference to the nodejs context's Function object. Similar application-specific attacks could be possible by modifying the local prototype of other API objects. Access to NativeModule objects could allow an attacker to load and run native code from anywhere on the filesystem. If combined with, for example, a file upload API this would allow for arbitrary code execution. This is addressed in v4.0.0 through a series of related changes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
动态管理代码资源的控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
isolated-vm 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Marcel Laverdet isolated-vm是Marcel Laverdet开源的一个应用程序。用于nodejs的库，可访问v8的Isolate界面。 isolated-vm 存在安全漏洞，该漏洞源于存在API缺陷，攻击者可利用该漏洞获取对nodejs上下文的函数对象的引用。
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
laverdet isolated-vm < 4.0.0 -

II. Public POCs for CVE-2021-21413

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III. Intelligence Information for CVE-2021-21413

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Patches & Fixes for CVE-2021-21413 (2)

Vendor Advisories for CVE-2021-21413 (1)

Other References for CVE-2021-21413 (1)

IV. Related Vulnerabilities

Same product: isolated-vm
Same vendor: laverdet
Same weakness: CWE-913

V. Comments for CVE-2021-21413

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