Auth bypass in Magmi Project
CVE-2020-5777
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.
Vulnerability class: Broken Authentication
EPSS: 0.233 (97.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Magmi_project Magmi
- N/a Magmi — versions All versions prior to version 0.7.24
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vulnreport@tenable.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-5777?
- CVE-2020-5777 is a critical-severity vulnerability in Magmi Project, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-09-01.
- How severe is CVE-2020-5777?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-5777 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.