OpenSSL 1.0.2 < 1.0.2d Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(84637);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/07");

  script_cve_id("CVE-2015-1793", "CVE-2015-3196");
  script_bugtraq_id(75652);

  script_name(english:"OpenSSL 1.0.2 < 1.0.2d Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The remote service is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of OpenSSL installed on the remote host is prior to 1.0.2d. It is, therefore, affected by multiple
vulnerabilities as referenced in the 1.0.2d advisory.

  - ssl/s3_clnt.c in OpenSSL 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1p, and 1.0.2 before 1.0.2d, when used for
    a multi-threaded client, writes the PSK identity hint to an incorrect data structure, which allows remote
    servers to cause a denial of service (race condition and double free) via a crafted ServerKeyExchange
    message. (CVE-2015-3196)

  - The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does
    not properly process X.509 Basic Constraints cA values during identification of alternative certificate
    chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended
    certificate verifications via a valid leaf certificate. (CVE-2015-1793)

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://www.openssl.org/news/secadv/20150709.txt");
  script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/secadv/20151203.txt");
  script_set_attribute(attribute:"see_also", value:"https://www.cve.org/CVERecord?id=CVE-2015-1793");
  script_set_attribute(attribute:"see_also", value:"https://www.cve.org/CVERecord?id=CVE-2015-3196");
  script_set_attribute(attribute:"solution", value:
"Upgrade to OpenSSL version 1.0.2d or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-1793");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/07/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/07/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/07/09");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:openssl:openssl");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2015-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("openssl_version.nasl", "openssl_nix_installed.nbin", "openssl_win_installed.nbin");
  script_require_keys("installed_sw/OpenSSL");

  exit(0);
}

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

var app_info = vcf::combined_get_app_info(app:'OpenSSL');

vcf::check_all_backporting(app_info:app_info);

var constraints = [
  { 'min_version' : '1.0.2', 'fixed_version' : '1.0.2d' },
  { 'min_version' : '1.0.2b', 'fixed_version' : '1.0.2d' }
];

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