Oracle Secure Global Desktop Multiple Vulnerabilities (January 2019 CPU)

#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(121601);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/10/25");

  script_cve_id("CVE-2018-11763", "CVE-2018-11784");
  script_bugtraq_id(105414, 105524);

  script_name(english:"Oracle Secure Global Desktop Multiple Vulnerabilities (January 2019 CPU)");

  script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote host is affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Oracle Secure Global Desktop installed on the remote
host is 5.4 and is missing a security patch from the January 2019
Critical Patch Update (CPU). It is, therefore, affected by multiple
vulnerabilities:

  - A denial of service (DoS) vulnerability exists in Apache HTTP
    Server 2.4.17 to 2.4.34, due to a design error. An
    unauthenticated, remote attacker can exploit this issue by sending
    continuous, large SETTINGS frames to cause a client to occupy a
    connection, server thread and CPU time without any connection
    timeout coming to effect. This affects only HTTP/2 connections.
    A possible mitigation is to not enable the h2 protocol.
    (CVE-2018-11763).

  - An unvalidated redirect vulnerability exists in the default
    servlet in Apache Tomcat due to improper input validation. An
    unauthenticated remote attack can exploit this issue via a 
    specially crafted URL to cause the redirect to be generated to any
    URI of the attackers choice. (CVE-2018-11784)");
  # https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html#AppendixOVIR
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0dcafb3e");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the January 2019 Oracle
Critical Patch Update advisory.");
  script_set_attribute(attribute:"agent", value:"all");
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-11784");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/09/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/01/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:virtualization_secure_global_desktop");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("oracle_secure_global_desktop_installed.nbin");
  script_require_keys("Host/Oracle_Secure_Global_Desktop/Version");

  exit(0);
}

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

app = "Oracle Secure Global Desktop";
version = get_kb_item_or_exit("Host/Oracle_Secure_Global_Desktop/Version");

# this check is for Oracle Secure Global Desktop packages built for Linux platform
uname = get_kb_item_or_exit("Host/uname");
if ("Linux" >!< uname) audit(AUDIT_OS_NOT, "Linux");

fix_required = NULL;

if (version =~ "^5\.40($|\.)") fix_required = 'Patch_54p3';

if (isnull(fix_required)) audit(AUDIT_INST_VER_NOT_VULN, "Oracle Secure Global Desktop", version);

patches = get_kb_list("Host/Oracle_Secure_Global_Desktop/Patches");

patched = FALSE;
foreach patch (patches)
{
  if (patch == fix_required)
  {
    patched = TRUE;
    break;
  }
}

if (patched) audit(AUDIT_INST_VER_NOT_VULN, app, version + ' (with ' + fix_required + ')');

report = '\n  Installed version : ' + version +
         '\n  Patch required    : ' + fix_required +
         '\n';
security_report_v4(port:0, extra:report, severity:SECURITY_WARNING);