CVE-2021-214138.0HighCWE-913

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

laverdet · isolated-vm

Affected: laverdet isolated-vm · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.7%probability of exploitation in the next 30 days

54th percentile

050100

Higher than 54% of scored CVEs

8.0HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

laverdet · isolated-vm< 4.0.0

On the Atlas

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Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Improper Control of Dynamically-Managed Code Resources · Deserialization and Object Injection
Published: March 2021
Band: Unlikely (under 1%), March 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-21413 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.