Re: [Xrdp-devel] CVE-2005-1794

2014-08-22 Thread Harry Johnston
Jay, Thanks. Yes, that was my understanding; the vulnerability is in the protocol, so it affects all Microsoft-compatible RDP (5.2 or earlier) software. I think it is clear that this is not widely understood, though, and this is what concerns me at present. We're moving to TLS encryption in xrd

Re: [Xrdp-devel] CVE-2005-1794

2014-08-22 Thread Jay Sorg
Hi Harry, That signature key is in the msdn documentation and needs to be used to sign the standard RDP RSA bits. http://msdn.microsoft.com/en-us/library/cc240776.aspx The MS client will error out with a security error if it's not signed right. MS did a poor job on this part of security and the si

Re: [Xrdp-devel] CVE-2005-1794

2014-08-22 Thread Harry Johnston
On 19 August 2014 16:51, speidy wrote: > Hi Harry, > > We have an rsa key generator tool to produce a new rsa key for xrdp server > usage. > That's xdrp-keygen, right? Looking at the code, the key generated by this tool is signed by the well-known private key, in exactly the same way as describ

Re: [Xrdp-devel] CVE-2005-1794

2014-08-22 Thread Harry Johnston
On 19 August 2014 09:09, Jonathan Buzzard wrote: What on earth makes you think that xrdp would have the same hard coded > RSA key in it that a Microsoft terminal server binary had in it nine > years ago. What makes you think it has any hard coded RSA keys? > That would be because when I looked i