A vulnerability was found in magmi up to 0.7.23. It has been declared as problematic. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect integrity. CVE summarizes:

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.

The weakness was published 09/01/2020 with Tenable Network Security as TRA-2020-51 as confirmed advisory (Website). The advisory is shared for download at tenable.com. The public release has been coordinated with the vendor. This vulnerability was named CVE-2020-5777. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 179 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.7.24 eliminates this vulnerability.

Additional details are provided at tenable.com. Similar entry is available at 160539.

Productinfo

Name

• magmi

Version

• 0.7.0
• 0.7.1
• 0.7.2
• 0.7.3
• 0.7.4
• 0.7.5
• 0.7.6
• 0.7.7
• 0.7.8
• 0.7.9
• 0.7.10
• 0.7.11
• 0.7.12
• 0.7.13
• 0.7.14
• 0.7.15
• 0.7.16
• 0.7.17
• 0.7.18
• 0.7.19
• 0.7.20
• 0.7.21
• 0.7.22
• 0.7.23

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