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

2023-10-1722:37:20

CWE-1321

GitHub_M

github.com

cve-2023

prototype pollution

arbitrary code execution

synchrony deobfuscator

literalmap transformer

deobfuscator 2.4.4

upgrade

disable-proto flag

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

SSVC

Exploitation

poc

Automatable

Technical Impact

total

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

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:relative:synchrony:*:*:*:*:*:nodejs:*:*"
    ],
    "vendor": "relative",
    "product": "synchrony",
    "versions": [
      {
        "status": "affected",
        "version": "2.0.1",
        "lessThan": "2.4.4",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]