Apache Struts DoS Vulnerability (S2-050) - Linux

# SPDX-FileCopyrightText: 2017 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.107239");
  script_version("2024-04-04T05:05:25+0000");
  script_cve_id("CVE-2017-9804");
  script_tag(name:"last_modification", value:"2024-04-04 05:05:25 +0000 (Thu, 04 Apr 2024)");
  script_tag(name:"creation_date", value:"2017-09-11 14:24:03 +0200 (Mon, 11 Sep 2017)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-10-03 00:03:00 +0000 (Thu, 03 Oct 2019)");
  script_name("Apache Struts DoS Vulnerability (S2-050) - Linux");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Denial of Service");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/100612");
  script_xref(name:"URL", value:"https://cwiki.apache.org/confluence/display/WW/S2-050");

  script_tag(name:"summary", value:"Apache Struts is prone to a regular expression Denial
  of Service (DoS) vulnerability when using URLValidator.

  This VT has been merged into the VT 'Apache Struts DoS Vulnerability (S2-050)'
  (OID: 1.3.6.1.4.1.25623.1.0.107240).");

  script_tag(name:"insight", value:"The previous fix issued with S2-047 was incomplete.
  If an application allows enter an URL in a form field and built-in URLValidator is used,
  it is possible to prepare a special URL which will be used to overload server process
  when performing validation of the URL.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the
  target host.");

  script_tag(name:"impact", value:"An attacker can exploit this issue to cause a DoS
  condition, denying service to legitimate users.");

  script_tag(name:"affected", value:"Apache Struts 2.3.7 through 2.3.33 and 2.5 through
  2.5.12.");

  script_tag(name:"solution", value:"Update to version 2.3.34, 2.5.13 or later.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"remote_banner_unreliable");

  script_tag(name:"deprecated", value:TRUE);

  exit(0);
}

exit(66);