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CVE-2023-45811

Relative Synchrony vulnerability

8.1 HIGHPublic exploitEPSS 0.41%
  1. Published17 Oct 2023

Description

Synchrony deobfuscator is a javascript cleaner & deobfuscator. A `__proto__` pollution vulnerability exists in versions before v2.4.4. Successful exploitation could lead to arbitrary code execution. A `__proto__` pollution vulnerability exists in the `LiteralMap` transformer allowing crafted input to modify properties in the Object prototype. A fix has been released in `[email protected]`. Users are advised to upgrade. Users unable to upgrade should launch node with the [--disable-proto=delete][disable-proto] or [--disable-proto=throw][disable-proto] flags

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Relative Synchrony≥ 2.0.1 < 2.4.4

Remediation

Fixed in
Relative Synchrony≥ 2.4.4

References

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Frequently asked

Is CVE-2023-45811 being actively exploited?

CVE-2023-45811 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.41%.

How severe is CVE-2023-45811?

CVE-2023-45811 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.41% probability of exploitation.

Which products are affected by CVE-2023-45811?

Affected products include Relative Synchrony.

How do I fix CVE-2023-45811?

Upgrade affected software to a fixed version, for example Relative Synchrony 2.4.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.