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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.tenable.com/security/research/tra-2020-51	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:magmi_project:magmi:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-09-01 21:15

Updated : 2024-02-04 21:00

NVD link : CVE-2020-5777

Mitre link : CVE-2020-5777

CVE.ORG link : CVE-2020-5777

JSON object : View

Products Affected

magmi_project

magmi

CWE

CWE-287

Improper Authentication

{"id": "CVE-2020-5777", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2020-09-01T21:15:12.660", "references": [{"url": "https://www.tenable.com/security/research/tra-2020-51", "tags": ["Third Party Advisory"], "source": "vulnreport@tenable.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Las versiones de MAGMI anteriores a 0.7.24 son vulnerables a una omisi\u00f3n de autenticaci\u00f3n remota debido a que permiten credenciales predeterminadas en caso de que haya un fallo en la conexi\u00f3n de la base de datos. Un atacante remoto puede desencadenar este error de conexi\u00f3n si la configuraci\u00f3n de Mysql max_connections (predeterminado 151) es menor que la configuraci\u00f3n de Apache (u otro servidor web) MaxRequestWorkers (anteriormente MaxClients) (predeterminado 256). Esto se puede hacer mediante el env\u00edo de al menos 151 peticiones simult\u00e1neas al sitio web de Magento para desencadenar un error de \"Too many connections\", luego use la autenticaci\u00f3n b\u00e1sica magmi:magmi predeterminada para omitir la autenticaci\u00f3n remotamente"}], "lastModified": "2020-09-08T15:34:55.737", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:magmi_project:magmi:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "322E507B-DD40-4CA4-B181-74DA8CB8F604", "versionEndExcluding": "0.7.24"}], "operator": "OR"}]}], "sourceIdentifier": "vulnreport@tenable.com"}