OpenSSL 1.0.1 < 1.0.1a Vulnerability

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

include('compat.inc');

if (description)
{
  script_id(58801);
  script_version("1.18");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/23");

  script_cve_id("CVE-2012-2110");
  script_bugtraq_id(53158);
  script_xref(name:"EDB-ID", value:"18756");

  script_name(english:"OpenSSL 1.0.1 < 1.0.1a Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"The remote service is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of OpenSSL installed on the remote host is prior to 1.0.1a. It is, therefore, affected by a vulnerability as
referenced in the 1.0.1a advisory.

  - The asn1_d2i_read_bio function in crypto/asn1/a_d2i_fp.c in OpenSSL before 0.9.8v, 1.0.0 before 1.0.0i,
    and 1.0.1 before 1.0.1a does not properly interpret integer data, which allows remote attackers to conduct
    buffer overflow attacks, and cause a denial of service (memory corruption) or possibly have unspecified
    other impact, via crafted DER data, as demonstrated by an X.509 certificate or an RSA public key.
    (CVE-2012-2110)

Note that Nessus has not tested for this issue 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/20120419.txt");
  script_set_attribute(attribute:"see_also", value:"https://www.cve.org/CVERecord?id=CVE-2012-2110");
  script_set_attribute(attribute:"solution", value:
"Upgrade to OpenSSL version 1.0.1a 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:P");
  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:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-2110");

  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:"2012/04/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/04/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/04/19");

  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_set_attribute(attribute:"asset_categories", value:"component");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2012-2024 Tenable Network Security, Inc.");

  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' : '1.0.1', 'fixed_version' : '1.0.1a' }
];

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