Vulnerability Details : CVE-2020-8818
An issue was discovered in the CardGate Payments plugin through 2.0.30 for Magento 2. Lack of origin authentication in the IPN callback processing function in Controller/Payment/Callback.php allows an attacker to remotely replace critical plugin settings (merchant ID, secret key, etc.) and therefore bypass the payment process (e.g., spoof an order status by manually sending an IPN callback request with a valid signature but without real payment) and/or receive all of the subsequent payments.
Products affected by CVE-2020-8818
- cpe:2.3:a:adobe:magento:2.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:cardgate:cardgate_payments:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-8818
8.39%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 95 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-8818
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:N |
8.0
|
4.9
|
NIST | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
2.8
|
5.2
|
NIST |
CWE ids for CVE-2020-8818
-
The product does not properly verify that the source of data or communication is valid.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-8818
-
https://github.com/cardgate/magento2/blob/715979e54e1a335d78a8c5586f9e9987c3bf94fd/Controller/Payment/Callback.php#L88-L107
magento2/Callback.php at 715979e54e1a335d78a8c5586f9e9987c3bf94fd · cardgate/magento2 · GitHubExploit;Third Party Advisory
-
http://packetstormsecurity.com/files/156505/Magento-WooCommerce-CardGate-Payment-Gateway-2.0.30-Bypass.html
Magento WooCommerce CardGate Payment Gateway 2.0.30 Bypass ≈ Packet StormExploit;Third Party Advisory;VDB Entry
-
https://github.com/cardgate/magento2/issues/54
Public disclosure on CVE-2020-8818 [Unauthorized Payments Hijacking + Order Status Spoofing] · Issue #54 · cardgate/magento2 · GitHubExploit;Third Party Advisory
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