Jenkins 'CVE-2017-17383' XSS Vulnerability - 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("1.3.6.1.4.1.25623.1.0.113063");
  script_version("2023-07-25T05:05:58+0000");
  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"creation_date", value:"2017-12-07 12:28:29 +0100 (Thu, 07 Dec 2017)");
  script_tag(name:"cvss_base", value:"3.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-12-22 17:16:00 +0000 (Fri, 22 Dec 2017)");

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

  script_tag(name:"solution_type", value:"Workaround");

  script_cve_id("CVE-2017-17383");

  script_name("Jenkins 'CVE-2017-17383' XSS Vulnerability - Linux");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_jenkins_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("jenkins/detected", "Host/runs_unixoide");

  script_tag(name:"summary", value:"Jenkins is prone to an XSS vulnerability.");

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

  script_tag(name:"insight", value:"An authenticated attacker can use a crafted tool name in a job configuration
  form to conduct XSS attacks.");

  script_tag(name:"impact", value:"Successful exploitation would allow an authenticated attacker to expose other
  users to malicious code.");

  script_tag(name:"affected", value:"Jenkins LTS 2.73.1 and prior, Jenkins 2.93 and prior.");

  script_tag(name:"solution", value:"Please refer to the vendor advisory for a workaround.");

  script_xref(name:"URL", value:"https://jenkins.io/security/advisory/2017-12-05/");

  exit(0);
}

CPE = "cpe:/a:jenkins:jenkins";

include( "host_details.inc" );
include( "version_func.inc" );

if( ! port = get_app_port( cpe:CPE ) )
  exit( 0 );

if( ! infos = get_app_full( cpe:CPE, port:port, exit_no_version:TRUE ) )
  exit( 0 );

version = infos["version"];
location = infos["location"];
proto = infos["proto"];

if( get_kb_item( "jenkins/" + port + "/is_lts" ) ) {
  if( version_is_less_equal( version:version, test_version:"2.73.1" ) ) {
    vuln = TRUE;
    fix = "See workaround in vendor advisory";
  }
} else {
  if( version_is_less_equal( version:version, test_version:"2.93" ) ) {
    vuln = TRUE;
    fix = "See workaround in vendor advisory";
  }
}

if( vuln ) {
  report = report_fixed_ver( installed_version:version, fixed_version:fix, install_path:location );
  security_message( port:port, data:report, proto:proto );
  exit( 0 );
}

exit( 99 );