CVE-2021-41120: Sylius/paypal plugin Sylius PayPal Plugin Allows Unauthorized Vulnerability
HIGHCVE-2021-41120 is a HIGH (CVSS 7.5) sylius paypal plugin allows unauthorized vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affecting Sylius/paypal plugin libraries in the Packagist ecosystem. The issue involves sylius paypal plugin allows unauthorized access to credit card form, exposing payer name and not requiring 3ds. Remediation is available by upgrading affected packages to version 1.2.4, 1.3.1.
CVE-2021-41120 at a Glance
Security Impact
CVSS: 7.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
How to Fix CVE-2021-41120
To remediate this vulnerability, upgrade all affected Sylius/paypal plugin dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade sylius/paypal-plugin to 1.2.4Upgrade sylius/paypal-plugin to 1.3.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for sylius/paypal-pluginHow to Check if You Are Affected
To determine whether your application is affected by CVE-2021-41120, inspect your project dependencies for Sylius/paypal plugin:
inspect dependencies for sylius/paypal-pluginAnalyze the terminal output to locate any version of Sylius/paypal plugin in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.2.4), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-639: Authorization Bypass Through User-Controlled Key, where the system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. In Sylius/paypal plugin, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2021-41120 Affected Sylius/paypal plugin Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
sylius/paypal-plugin
|
Packagist |
≥ 1.0.0
< 1.2.4
|
1.2.4
|
|
sylius/paypal-plugin
|
Packagist |
≥ 1.3.0
< 1.3.1
|
1.3.1
|
References
Frequently Asked Questions
What is CVE-2021-41120?
Which Sylius/paypal plugin versions are affected?
What version fixes CVE-2021-41120?
Is sylius/paypal-plugin affected?
What is the CVSS score of CVE-2021-41120?
What CWE is associated with CVE-2021-41120?
How can I check Packagist dependencies for CVE-2021-41120?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-25fx-mxc2-76g7",
"modified" : "2022-08-15T20:11:12Z",
"published" : "2021-10-06T17:49:11Z",
"aliases" : [ "CVE-2021-41120" ],
"summary" : "Sylius PayPal Plugin allows unauthorized access to Credit card form, exposing payer name and not requiring 3DS",
"details" : "### Impact\nURL to the payment page done after checkout was created with autoincremented payment id (`/pay-with-paypal/{id}`) and therefore it was easy to access for anyone, not even the order's customer. The problem was, the Credit card form has prefilled \"credit card holder\" field with the Customer's first and last name.\nAdditionally, the mentioned form did not require a 3D Secure authentication, as well as did not checked the result of the 3D Secure authentication.\n\n### Patches\nThe problem has been patched in Sylius/PayPalPlugin **1.2.4** and **1.3.1**\n\n### Workarounds\nOne can override a `sylius_paypal_plugin_pay_with_paypal_form` route and change its URL parameters to (for example) `{orderToken}/{paymentId}`, then override the `Sylius\\PayPalPlugin\\Controller\\PayWithPayPalFormAction` service, to operate on the payment taken from the repository by these 2 values. It would also require usage of custom repository method.\nAdditionally, one could override the `@SyliusPayPalPlugin/payWithPaypal.html.twig` template, to add `contingencies: ['SCA_ALWAYS']` line in `hostedFields.submit(...)` function call (line 421). It would then have to be handled in the function callback.\n\n### For more information\nIf you have any questions or comments about this advisory:\n- Open an issue in Sylius/PayPalPlugin issues\n- Email us at security at sylius dot com\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Packagist",
"name" : "sylius/paypal-plugin"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.0.0"
}, {
"fixed" : "1.2.4"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Packagist",
"name" : "sylius/paypal-plugin"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.3.0"
}, {
"fixed" : "1.3.1"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/Sylius/PayPalPlugin/security/advisories/GHSA-25fx-mxc2-76g7"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-41120"
}, {
"type" : "WEB",
"url" : "https://github.com/Sylius/PayPalPlugin/commit/2adc46be2764ccee22b4247139b8056fb8d1afff"
}, {
"type" : "WEB",
"url" : "https://github.com/Sylius/PayPalPlugin/commit/814923c2e9d97fe6279dcee866c34ced3d2fb7a7"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/Sylius/PayPalPlugin"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-200", "CWE-639" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2021-10-05T21:12:27Z",
"nvd_published_at" : "2021-10-05T21:15:00Z"
}
}