bugtraq - Re: Linux VNC evil client patch

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date: 24 Jun 2006 08:38:00 -0000
From: embyte@...lab.it
To: bugtraq@...urityfocus.com
Subject: Re: Linux VNC evil client patch - BID 17978

Moreover the vulnerability seems to be exploitable only by client RFB-3.8 [1] compliant, which means VNC4 (i.e. vnc4-4.1.1+X4.3.0 for linux). VNC3 for Linux and Windows are RFB-3.3.
This is because the new protocol version implements a different authentication handshake procedure. In fact attack doesn't work neither patching old clients, neither using them with the metasploit plugin realvnc_41_bypass.

That's all folks.
embyte

[1] Remote Frame Buffer protocol, http://realvnc.com/docs/rfbproto.pdf