Tenable Nessus 6.x < 6.8 Multiple Vulnerabilities

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(92465);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2016-0718", "CVE-2016-1000028", "CVE-2016-1000029");
  script_bugtraq_id(90729);

  script_name(english:"Tenable Nessus 6.x < 6.8 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"An application running on the remote host is affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the Tenable Nessus
application running on the remote host is 6.x prior to 6.8. It is,
therefore, affected by multiple vulnerabilities :

  - A buffer overflow condition exists in the Expat XML
    parser due to improper validation of user-supplied input
    when handling malformed input documents. An
    authenticated, remote attacker can exploit this to cause
    a denial of service condition or the execution of
    arbitrary code. (CVE-2016-0718)

  - A stored cross-site (XSS) scripting vulnerability exists
    that can be exploited by an authenticated, remote
    attacker that has user-level access to the Nessus user
    interface. (CVE-2016-1000028)

  - Multiple stored cross-site (XSS) scripting
    vulnerabilities exist that can be exploited by an
    authenticated, remote attacker that has
    administrative-level access to the Nessus user
    interface. These issues would only affect other users
    with administrative access. (CVE-2016-1000029)");
  script_set_attribute(attribute:"see_also", value:"https://www.tenable.com/security/tns-2016-11");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Tenable Nessus version 6.8 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-0718");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/07/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/20");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:tenable:nessus");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:libexpat:expat");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2016-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("nessus_detect.nasl");
  script_require_keys("installed_sw/nessus");
  script_require_ports("Services/www", 8834);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("http.inc");
include("misc_func.inc");
include("install_func.inc");

app = "nessus";
get_install_count(app_name:app, exit_if_zero:TRUE);
port = get_http_port(default:8834);

install = get_single_install(app_name:app, port:port, exit_if_unknown_ver:TRUE);

version = install['version'];

fix = '6.8';

# Affected versions:
# 6.x < 6.8
if (version =~ '^6\\.' && ver_compare(ver:version, fix:fix, strict:FALSE) < 0)
{
  order = make_list('Installed version', 'Fixed version');
  report = make_array(
    order[0], version,
    order[1], fix
  );
  report = report_items_str(report_items:report, ordered_fields:order);

  security_report_v4(port:port, extra:report, severity:SECURITY_HOLE, xss:TRUE);
  exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, "Nessus", port, version);