Date: Thu, 2 May 2013 15:48:36 +0000 From: "Christey, Steven M." <coley@...re.org> To: "oss-security@...ts.openwall.com" <oss-security@...ts.openwall.com>, "kseifried@...hat.com" <kseifried@...hat.com>, "andresgomezram7@...il.com" <andresgomezram7@...il.com> Subject: RE: Flightgear remote format string Andrés, Here is my interpretation of the problem. I believe there is some confusion because people don't usually think that a flight simulator could be accessible from a "remote" location. Is the following correct? 1) The Flightgear package includes a network server. This server can be run using fgfs.exe and specifying a port number using the "-telnet" argument, for example. 2) The format string problem is in the server. 3) Your exploit makes a connection to the server (on port 5501). 4) The exploit sends a number of format strings in the cloud names (using the "property tree"). For some reason, it sends the same command 5 times, and it sends this command for "layers" 1 through 5. 5) The exploit causes the server to crash. - Steve >-----Original Message----- >From: Andrés Gómez Ramírez [mailto:andresgomezram7@...il.com] >Sent: Thursday, May 02, 2013 11:13 AM >To: kseifried@...hat.com >Cc: oss-security@...ts.openwall.com >Subject: Re: [oss-security] Flightgear remote format string > >> >> So it's not on by default? Is there any documentation specifically you >> can point me to regarding enabling/securing it? >> > >Hi, >the detailed info is in the reference: > >http://kuronosec.blogspot.com/2013/04/flightgear-remote-format- >string.html > >if you need more info, please let me know.
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