CVE-2023-45811 Prototype pollution vulnerability leading to arbitrary code execution in synchrony deobfuscator

2023-10-1722:37:20

CWE-1321

GitHub_M

www.cve.org

cve-2023

synchrony deobfuscator

prototype pollution

arbitrary code execution

literalmap transformer

upgrade

disable-proto.

CVSS3

8.1

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

AI Score

8.4

Confidence

High

EPSS

Percentile

9.8%

JSON

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

CNA Affected

[
  {
    "vendor": "relative",
    "product": "synchrony",
    "versions": [
      {
        "version": ">= 2.0.1, < 2.4.4",
        "status": "affected"
      }
    ]
  }
]