CVE-2020-37168

Description

Ecommerce Systempay 1.0 contains a weak cryptographic implementation vulnerability that allows attackers to brute force the 16-character production secret key used for payment signature generation. Attackers can extract payment form data and signatures from POST requests to the payment endpoint, then use SHA1 hash comparison to iteratively test key candidates until discovering the correct production key, enabling them to forge valid payment signatures and manipulate transaction amounts.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

• https://paiement.systempay.fr/doc/fr-FR/
• https://paiement.systempay.fr/doc/fr-FR/module-de-paiement-gratuit/
• https://www.exploit-db.com/exploits/48017
• https://www.vulncheck.com/advisories/ecommerce-systempay-production-key-brute-force

CWEs

CWE-328