Re: Undocumented telnet access to Brother HL-2280DW

[Celejar <celejar@gmail.com>]

On Sun, 29 Dec 2013 19:52:05 +0400
Reco <recoverym4n@gmail.com> wrote:

>  Hi.
> 
> On Sun, 29 Dec 2013 09:17:13 -0500
> Celejar <celejar@gmail.com> wrote:
> 
> > > > So what do we have here? Some sort of broken, half-baked telnet service
> > > > running, or am I doing something wrong?
> > > 
> > > Try running nmap like this:
> > > 
> > > nmap -A -p 22,23 <printer>
> > 
> > Same information - my original run had the -A switch already.
> 
> Ok. This suggests that it is a telnet actually (Multi-Protocol part
> lists telnet as a supported service):
> 
> http://www.klbe.ca/docs/Black_Printers/HL-2280DW.pdf
> 
> This:
> 
> http://www.brother-usa.com/VirData/Content/en-US%5CPrinters%5CConsumer%5CNetworkUsersManual%5CNUM_DCP_7065DN_HL_2280DW_MFC_7360N_7460DN_7860DW_EN_2845.PDF
> 
> gave me an idea - they run telnet, but they use some variation of tcp
> wrappers which forbids any telnet connections (possibly other services
> too) from anything except maybe 192.168.0.1 (or, 192.168.0.5, or
> 169.254.0.0/16).

Also note that the "Supported protocols" appendix of that second
document (p. 76) *doesn't* include telnet among the two dozen or so
supported protocols.

Thanks for the help.

> Reco

Celejar