code | #
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description) {
script_id(19234);
script_version("1.19");
script_cve_id("CVE-2005-1492");
script_bugtraq_id(13484);
script_name(english:"Gossamer Threads Links user.cgi url Parameter XSS");
script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a CGI script that is susceptible to a
cross-site scripting attack." );
script_set_attribute(attribute:"description", value:
"The remote host is running Gossamer Links, a web links management tool
from Gossamer Threads and written in Perl.
The installed version of Gossamer Links fails to properly sanitize
user-supplied input to the 'url' parameter of the 'user.cgi' script.
By leveraging this flaw, an attacker may be able to cause arbitrary
HTML and script code to be executed by a user's browser within the
context of the affected application, leading to cookie theft and
similar attacks." );
script_set_attribute(attribute:"see_also", value:"http://marc.info/?l=bugtraq&m=111531023916998&w=2" );
# https://www.gossamer-threads.com/forum/Gossamer_Links_3.0.1_Released_P280986/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6657cd07" );
script_set_attribute(attribute:"solution", value:
"Upgrade to Gossamer Links 3.0.1 or later." );
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);
script_set_attribute(attribute:"plugin_publication_date", value: "2005/07/20");
script_set_attribute(attribute:"vuln_publication_date", value: "2005/05/04");
script_cvs_date("Date: 2018/11/15 20:50:19");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/a:gossamer_threads:gossamer_threads_links-sql");
script_end_attributes();
script_summary(english:"Checks for url parameter cross-site scripting vulnerability in Gossamer Links");
script_category(ACT_ATTACK);
script_family(english:"CGI abuses : XSS");
script_copyright(english:"This script is Copyright (C) 2005-2018 Tenable Network Security, Inc.");
script_dependencies("http_version.nasl", "cross_site_scripting.nasl");
script_exclude_keys("Settings/disable_cgi_scanning");
script_require_ports("Services/www", 80);
exit(0);
}
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
port = get_http_port(default:80);
if (get_kb_item("www/" + port + "/generic_xss")) exit(0);
# A simple alert.
xss = '<script>alert("' + SCRIPT_NAME + '");</script>';
# nb: the url-encoded version is what we need to pass in.
exss = '%3Cscript%3Ealert("' + SCRIPT_NAME + '")%3B%3C%2Fscript%3E';
# Loop through CGI directories.
foreach dir (cgi_dirs()) {
# Try to exploit the flaw.
r = http_send_recv3(method: "GET", port: port,
item:string(
dir, "/user.cgi?",
'url=">', exss, "&",
"from=add"
));
if (isnull(r)) exit(0);
# There's a problem if ...
if (
# it looks like Gossamer Links and...
'<input type="hidden" name="url" value="">' >< r[2] &&
# we see our XSS.
xss >< r[2]
) {
security_warning(port);
set_kb_item(name: 'www/'+port+'/XSS', value: TRUE);
exit(0);
}
}
|