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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-37168 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulnCheck
CVSS-B 9.3 CRITICAL
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://paiement.systempay.fr/doc/fr-FR/ VulnCheck
https://paiement.systempay.fr/doc/fr-FR/module-de-paiement-gratuit/ VulnCheck
https://www.exploit-db.com/exploits/48017 VulnCheck
https://www.vulncheck.com/advisories/ecommerce-systempay-production-key-brute-force VulnCheck

Weakness Enumeration

CWE-ID CWE Name Source
CWE-328 Use of Weak Hash VulnCheck  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-37168
NVD Published Date:
05/13/2026
NVD Last Modified:
05/13/2026
Source:
VulnCheck