The ABB IDAL FTP server mishandles format strings in a username during the authentication process. Attempting to authenticate with the username %s%p%x%d will crash the server. Sending %08x.AAAA.%08x.%08x will log memory content from the stack.
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.
Link | Tags |
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https://www.darkmatter.ae/xen1thlabs/published-advisories/ | third party advisory |
http://seclists.org/fulldisclosure/2019/Jun/33 | mailing list third party advisory exploit |
https://search.abb.com/library/Download.aspx?DocumentID=3ADR010377&LanguageCode=en&DocumentPartId=&Action=Launch | patch vendor advisory mitigation |
http://packetstormsecurity.com/files/153386/ABB-IDAL-FTP-Server-Uncontrolled-Format-String.html | third party advisory vdb entry exploit |
http://www.securityfocus.com/bid/108886 | third party advisory vdb entry |