Vulnerabilities > CVE-2016-3093 - Improper Input Validation vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K23432135.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(91861);
  script_version("2.9");
  script_cvs_date("Date: 2019/01/04 10:03:40");

  script_cve_id("CVE-2016-3093");

  script_name(english:"F5 Networks BIG-IP : Apache Struts 2 vulnerability (K23432135)");
  script_summary(english:"Checks the BIG-IP version.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote device is missing a vendor-supplied security patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Apache Struts 2.0.0 through 2.3.24.1 does not properly cache method
references when used with OGNL before 3.0.12, which allows remote
attackers to cause a denial of service (block access to a website) via
unspecified vectors. (CVE-2016-3093)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K23432135"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K23432135."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_acceleration_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/27");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"F5 Networks Local Security Checks");

  script_dependencies("f5_bigip_detect.nbin");
  script_require_keys("Host/local_checks_enabled", "Host/BIG-IP/hotfix", "Host/BIG-IP/modules", "Host/BIG-IP/version");

  exit(0);
}


include("f5_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
version = get_kb_item("Host/BIG-IP/version");
if ( ! version ) audit(AUDIT_OS_NOT, "F5 Networks BIG-IP");
if ( isnull(get_kb_item("Host/BIG-IP/hotfix")) ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/hotfix");
if ( ! get_kb_item("Host/BIG-IP/modules") ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/modules");

sol = "K23432135";
vmatrix = make_array();

# AM
vmatrix["AM"] = make_array();
vmatrix["AM"]["affected"  ] = make_list("12.0.0-12.1.2");
vmatrix["AM"]["unaffected"] = make_list("13.0.0","11.4.0-11.6.1");


if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
  if (report_verbosity > 0) security_warning(port:0, extra:bigip_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = bigip_get_tested_modules();
  audit_extra = "For BIG-IP module(s) " + tested + ",";
  if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version);
  else audit(AUDIT_HOST_NOT, "running the affected module AM");
}

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

include("compat.inc");

if (description)
{
  script_id(90153);
  script_version("1.15");
  script_cvs_date("Date: 2019/02/15 10:32:14");

  script_cve_id("CVE-2016-4003", "CVE-2016-0785", "CVE-2016-2162", "CVE-2016-3093");
  script_bugtraq_id(86311, 85066, 85070, 90961);

  script_name(english:"Apache Struts 2.x < 2.3.28 Multiple Vulnerabilities (S2-028) (S2-029) (S2-030) (S2-034)");
  script_summary(english:"Checks the Struts 2 version.");

  script_set_attribute(attribute:"synopsis", value:
"A web application running on the remote host uses a Java framework
that is affected by multiple vulnerabilities");
  script_set_attribute(attribute:"description", value:
"The version of Apache Struts running on the remote host is 2.x
prior to 2.3.28. It is, therefore, affected by the following
vulnerabilities :
  - A cross-site scripting vulnerability exists due to
    improper validation of user-supplied input when using
    a single byte page encoding. A remote attacker can 
    exploit this, via non-spec URL-encoded parameter value
    including multi-byte characters. (CVE-2016-4003)

  - A remote code execution vulnerability exists due to
    double OGNL evaluation of attribute values assigned to
    certain tags. An unauthenticated, remote attacker can
    exploit this, via a specially crafted request, to
    execute arbitrary code. (CVE-2016-0785)

  - A cross-site scripting vulnerability exists due to
    improper validation of user-supplied input when using
    the I18NInterceptor. A remote attacker can exploit this,
    via a specially crafted request, to execute arbitrary
    script code in a user's browser session. (CVE-2016-2162)

  - A denial of service vulnerability exists in the
    Object-Graph Navigation Language (OGNL) component due to
    a flaw in the implementation of the cache for stored
    method references. A context-dependent attacker can
    exploit this to block access to arbitrary websites.
    (CVE-2016-3093)

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://struts.apache.org/docs/s2-028.html");
  script_set_attribute(attribute:"see_also", value:"https://struts.apache.org/docs/s2-029.html");
  script_set_attribute(attribute:"see_also", value:"https://struts.apache.org/docs/s2-030.html");
  script_set_attribute(attribute:"see_also", value:"https://struts.apache.org/docs/s2-034.html");
  script_set_attribute(attribute:"see_also", value:"http://struts.apache.org/docs/version-notes-2328.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Struts version 2.3.28 or later. Alternatively,
apply the workaround referenced in the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-0785");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");


  script_set_attribute(attribute:"vuln_publication_date", value:"2016/03/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/03/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/24");

  script_set_attribute(attribute:"agent", value:"all");
  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:struts");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("os_fingerprint.nasl", "struts_detect_win.nbin", "struts_detect_nix.nbin", "struts_config_browser_detect.nbin");
  script_require_keys("Settings/ParanoidReport");
  script_require_ports("installed_sw/Apache Struts","installed_sw/Struts");

  exit(0);
}

include("vcf.inc");

if (report_paranoia < 2) audit(AUDIT_PARANOID);


app_info = vcf::combined_get_app_info(app:"Apache Struts");

vcf::check_granularity(app_info:app_info, sig_segments:3);

constraints = [
  { "min_version" : "2.0.0", "max_version" : "2.3.24.1", "fixed_version" : "2.3.28" }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE, flags:{xss:TRUE});