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# This script is (C) Noam Rathaus
if (description)
{
script_id(10779);
script_name(english:"CGIEmail's CGICso (Send CSO via CGI) Command Execution Vulnerability");
desc["english"] = "
The remote host seems to be vulnerable to a security problem in
CGIEmail (cgicso). The vulnerability is caused by inadequate processing
of queries by CGIEmail's cgicso and results in a command execution
vulnerability.
Impact:
The server can be compromised by executing commands as the web server's
running user (usually 'nobody').
Solution:
Modify cgicso.h to contain a strict setting of your finger host.
Example:
Define the following in cgicso.h:
#define CGI_CSO_HARDCODE
#define CGI_CSO_FINGERHOST 'localhost'
Risk Factor: High
Additional information:
http://www.securiteam.com/exploits/5TP0W005FE.html";
script_description(english:desc["english"]);
script_summary(english:"Determine if a remote host is vulnerable to the cgicso vulnerability");
script_category(ACT_GATHER_INFO);
script_family(english:"CGI abuses", francais:"Abus de CGI");
script_copyright(english:"This script is Copyright (C) 2001 SecurITeam");
script_dependencie("find_service.nes", "no404.nasl");
script_require_ports("Services/www", 80);
exit(0);
}
port = get_kb_item("Services/www");
if (!port) port = 80;
dir[0] = "/bin/";
dir[1] = "/cgi-local/cgiemail-1.4/";
dir[2] = "/cgi-local/";
dir[3] = "/cgi/cgiemail/";
dir[4] = "/html/cgi-bin/";
dir[5] = "/cgi-local/cgiemail-1.6/";
dir[6] = string(cgibin(), "/");
if (get_port_state(port))
{
for (i = 0; dir[i] ; i = i + 1)
{
url = string(dir[i], "cgicso");
# display("URL: ", url, "\n");
if (is_cgi_installed(url))
{
# display("CGI found at: ", url, "\n");
data = string(url, "?query=AAA");
req = http_get(item:data, port:port);
soc = open_sock_tcp(port);
if (soc)
{
send(socket:soc, data:req);
buf = recv(socket:soc, length:1000);
# display(buf);
if ("400 Required field missing: fingerhost" >< buf)
{
security_hole(port:port);
exit(0);
}
else
{
security_note(port:port);
exit(0);
}
}
}
}
}
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