CVE-2020-37168 (GCVE-0-2020-37168)
Vulnerability from cvelistv5 – Published: 2026-05-13 14:22 – Updated: 2026-05-14 13:35
VLAI
EPSS
VEX
Title
Ecommerce Systempay 1.0 Production Key Brute Force
Summary
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.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 13:34 UTC
CWE
- CWE-328 - Use of Weak Hash
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48017 | exploit |
| https://paiement.systempay.fr/doc/fr-FR/ | product |
| https://paiement.systempay.fr/doc/fr-FR/module-de… | product |
| https://www.vulncheck.com/advisories/ecommerce-sy… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Paiement | Ecommerce Systempay |
Affected:
1.0
|
guessed |
Date Public
2020-02-05 00:00
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