Puppet Enterprise < 2015.3.0 Information Disclosure Vulnerability

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

include("compat.inc");

if (description)
{
  script_id(129750);
  script_version("1.2");
  script_cvs_date("Date: 2019/10/17 14:31:04");

  script_cve_id("CVE-2015-8470");

  script_name(english:"Puppet Enterprise < 2015.3.0 Information Disclosure Vulnerability");
  script_summary(english:"Checks the Puppet Enterprise version.");

  script_set_attribute(attribute:"synopsis", value:
"A web application running on the remote host is affected by a code 
execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the Puppet install on
the remote host is affected by an information disclosure vulnerability.
An unauthenticated, unpriviledged remote attacker can cause a user to send
jsessionid cookies in plain text, allowing the attacker the ability to 
potentially hijack the session.");
  script_set_attribute(attribute:"see_also", value:"https://puppet.com/security/cve/CVE-2015-8470");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Puppet Enterprise version 2015.3.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
  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:R/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-8470");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/09");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:puppetlabs:puppet");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

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

  script_dependencies("puppet_enterprise_console_detect.nasl", "puppet_rest_detect.nasl");
  script_require_keys("puppet/rest_port", "installed_sw/puppet_enterprise_console");

  exit(0);
}

include('vcf.inc');
include('http.inc');

app = 'Puppet REST API'; # we get both enterprise and open-source versions from the api...

# Make sure we detected a version 
port = get_kb_item_or_exit('puppet/rest_port');
ver = get_kb_item_or_exit('puppet/' + port + '/version');

# Make sure the Console service is running
get_kb_item_or_exit('installed_sw/puppet_enterprise_console');

app_info = vcf::get_app_info(app:app, port:port, webapp:TRUE, kb_ver: 'puppet/' + port + '/version');

# version info obtained from https://puppet.com/docs/pe/2016.2/overview_version_table.html
constraints = [
  {"min_version" : "3.7.0", "fixed_version" : "4.3.1", "fixed_display" : "Puppet Enterprise (2015.3.0)"}
];

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