CVE-2018-3777

Affected: https://github.com/restforce restforce ruby gem

Insufficient URI encoding in restforce before 3.0.0 allows attacker to inject arbitrary parameters into Salesforce API requests.

GHSA-534w-937m-v7x3 — restforce vulnerable to Improper Input Validation

Affected: RubyGems: restforce

A flaw in how restforce constructs URLs may allow an attacker to inject additional parameters into Salesforce API requests.

Impact ------ This flaw is only exploitable in applications that pass user input directly to restforce's select, find, describe, update, upsert, and destroy methods.

Vulnerable code might look like: ```ruby client.select('SomeSalesForceObject', params[:some-id], ...) ```

In such an application, attackers could pass `0016000000MRatd/describe` as a request parameter, causing the server to make a request to a different endpoint than the server is designed to handle. Since the Salesforce REST API supports overriding HTTP methods via a request parameter, an attacker could also cause the client's `select()` method to modify data, by passing `0016000000MRatd/?_HttpMethod=PATCH&other-query-params=...`.

Workarounds ------ If possible, applications should track salesforce IDs internally, rather than passing user-supplied IDs to salesforce. Such practice mitigates this vulnerability, and in general is desirable for ensuring strong access control.

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CVE-2018-3777

GHSA-534w-937m-v7x3 — restforce vulnerable to Improper Input Validation