Apache Struts XStream Handler REST Plugin XML Request Handling Remote DoS (S2-056)

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

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

if (description)
{
  script_id(108760);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2018-1327");
  script_bugtraq_id(103516);

  script_name(english:"Apache Struts XStream Handler REST Plugin XML Request Handling Remote DoS (S2-056)");

  script_set_attribute(attribute:"synopsis", value:
"A web application running on the remote host uses a Java framework
that is affected by remote denial of service attack.");
  script_set_attribute(attribute:"description", value:
"The version of Apache Struts running on the remote host is prior to 
2.5.16. It, therefore, contains a flaw in the REST plugin when using 
the XStream handler that is triggered during the handling of a 
specially crafted request with an XML payload. This may allow a remote
 attacker to cause a denial of service.

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://cwiki.apache.org/confluence/display/WW/S2-056");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/oss-sec/2018/q1/280");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Struts version 2.5.16 or later or apply the
workaround as referenced in the vendor's security bulletin.");
  script_set_attribute(attribute:"agent", value:"all");
  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:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-1327");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/03/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/03/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/30");

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

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

  script_copyright(english:"This script is Copyright (C) 2018-2022 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_ports("installed_sw/Apache Struts", "installed_sw/Struts");

  exit(0);
}

include("vcf.inc");

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

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

constraints = [
  { "min_version" : "2.1.1", "max_version" : "2.5.14.1", "fixed_version" : "2.5.16" }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);