Vulnerability 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.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
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-fo
FAQ
What is CVE-2020-37168?
CVE-2020-37168 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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. At...
How severe is CVE-2020-37168?
CVE-2020-37168 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-37168?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.