CVE-2020-5777

CRITICAL NUCLEI

MAGMI < 0.7.24 - Unauthenticated Authentication Bypass via Database Connection Failure

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2020-5777 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

Description

MAGMI versions prior to 0.7.24 are vulnerable to a remote authentication bypass due to allowing default credentials in the event there is a database connection failure. A remote attacker can trigger this connection failure if the Mysql setting max_connections (default 151) is lower than Apache (or another web server) setting MaxRequestWorkers (formerly MaxClients) (default 256). This can be done by sending at least 151 simultaneous requests to the Magento website to trigger a "Too many connections" error, then use default magmi:magmi basic authentication to remotely bypass authentication.

Nuclei Templates (1)

Magento Mass Importer <0.7.24 - Remote Auth Bypass
CRITICALby dwisiswant0
Shodan: http.component:"Magento" || http.component:"magento"

References (1)

Core 1
Core References
Third Party Advisory x_refsource_misc
https://www.tenable.com/security/research/tra-2020-51

Scores

CVSS v3 9.8
EPSS 0.2390
EPSS Percentile 97.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-287
Status published
Products (2)
dweeves/magmi 0 - 0.7.24Packagist
magmi_project/magmi < 0.7.24
Published Sep 01, 2020
Tracked Since Feb 18, 2026