CVE-2018-18344

Description

A flaw was found in the Extensions component of the Chromium browser. A remote attacker controlling a malicious extension could misuse developer tools protocol settings, specifically the download behavior feature. By convincing a user to run a crafted extension, the attacker can bypass security restrictions to gain unauthorized access to files on the local file system.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v3 Score Breakdown

Red HatNVDcve.org
Base Score8.86.5N/A
Attack VectorNetworkNetworkN/A
Attack ComplexityLowLowN/A
Privileges RequiredNoneNoneN/A
User InteractionRequiredRequiredN/A
ScopeUnchangedUnchangedN/A
ConfidentialityHighHighN/A
Integrity ImpactHighNoneN/A
Availability ImpactHighNoneN/A

Vector

Red Hat: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Understanding the Weakness (CWE)

CWE-749

Integrity,Confidentiality,Availability,Access Control,Other

Technical Impact: Gain Privileges or Assume Identity; Read Application Data; Modify Application Data; Execute Unauthorized Code or Commands; Other

Exposing critical functionality essentially provides an attacker with the privilege level of the exposed functionality. The consequences may vary depending on the behavior of the exposed method. Typically, this could result in the modification or exposure of sensitive data or possibly even execution of arbitrary code.

Frequently Asked Questions

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