CVE-2023-49803

Published: Dic 11, 2023 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2023-3277 Aliases: GHSA-qxrj-hx23-xp82
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,6
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: none
Integrity: high
Availability: none

Description

AI Translation Available

@koa/cors npm provides Cross-Origin Resource Sharing (CORS) for koa, a web framework for Node.js. Prior to version 5.0.0, the middleware operates in a way that if an allowed origin is not provided, it will return an `Access-Control-Allow-Origin` header with the value of the origin from the request. This behavior completely disables one of the most crucial elements of browsers - the Same Origin Policy (SOP), this could cause a very serious security threat to the users of this middleware. If such behavior is expected, for instance, when middleware is used exclusively for prototypes and not for production applications, it should be heavily emphasized in the documentation along with an indication of the risks associated with such behavior, as many users may not be aware of it. Version 5.0.0 fixes this vulnerability.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0013
Percentile
0,3th
Updated

EPSS Score Trend (Last 90 Days)

346

Origin Validation Error

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Other Access Control
Potential Impacts:
Gain Privileges Or Assume Identity Varies By Context
Applicable Platforms
Technologies: Not Technology-Specific, Web Based
View CWE Details
Application

Cross-Origin Resource Sharing For Koa by Koajs

Product Information
Vendor Koajs
Product Cross-Origin Resource Sharing For Koa
Version Range Affected
To 5.0.0 (exclusive)
cpe:2.3:a:koajs:cross-origin_resource_sharing_for_koa:*:*:*:*:*:node.js:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/koajs/cors/commit/f31dac99f5355c41e7d4dd…
Patch
https://github.com/koajs/cors/commit/f31dac99f5355c41e7d4dd3c4a80c5f154941a11
https://github.com/koajs/cors/security/advisories/GHSA-qxrj…
Vendor Advisory
https://github.com/koajs/cors/security/advisories/GHSA-qxrj-hx23-xp82
https://github.com/koajs/cors/commit/f31dac99f5355c41e7d4dd…
Patch
https://github.com/koajs/cors/commit/f31dac99f5355c41e7d4dd3c4a80c5f154941a11
https://github.com/koajs/cors/security/advisories/GHSA-qxrj…
Vendor Advisory
https://github.com/koajs/cors/security/advisories/GHSA-qxrj-hx23-xp82