CVE-2023-39345 – @strapi/strapi

Package

Manager: npm
Name: @strapi/strapi
Vulnerable Version: >=4.0.0 <4.13.1

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00079 pctl0.24198

Details

Unauthorized Access to Private Fields in User Registration API ### System Details | Name | Value | |----------|------------------------| | OS | Windows 11 | | Version | 4.11.1 (node v16.14.2) | | Database | mysql | ### Description I marked some fields as private fields in user content-type, and tried to register as a new user via api, at the same time I added content to fill the private fields and sent a post request, and as you can see from the images below, I can write to the private fields.     To prevent this, I went to the extension area and tried to extend the register method, for this I wanted to do it using the sanitizeInput function that I know in the source codes of the strap. But the sanitizeInput function did not filter out private fields. ```js const { auth } = ctx.state; const data = ctx.request.body; const userSchema = strapi.getModel("plugin::users-permissions.user"); sanitize.contentAPI.input(data, userSchema, { auth }); ``` here's the solution I've temporarily kept to myself, code snippet ```js const body = ctx.request.body; const { attributes } = strapi.getModel("plugin::users-permissions.user"); const sanitizedData = _.omitBy(body, (data, key) => { const attribute = attributes[key]; if (_.isNil(attribute)) { return false; } //? If you want, you can throw an error for fields that we did not expect. // if (_.isNil(attribute)) // throw new ApplicationError(`Unexpected value ${key}`); // if private value is true, we do not want to send it to the database. return attribute.private; }); return sanitizedData; ```

Metadata

Created: 2023-11-03T19:01:11Z
Modified: 2023-11-06T21:58:57Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-gc7p-j5xm-xxh2/GHSA-gc7p-j5xm-xxh2.json
CWE IDs: ["CWE-287"]
Alternative ID: GHSA-gc7p-j5xm-xxh2
Finding: F039
Auto approve: 1