Gale EVP_VerifyFinal() Security Bypass Vulnerability

# SPDX-FileCopyrightText: 2009 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("1.3.6.1.4.1.25623.1.0.800340");
  script_version("2023-07-27T05:05:08+0000");
  script_tag(name:"last_modification", value:"2023-07-27 05:05:08 +0000 (Thu, 27 Jul 2023)");
  script_tag(name:"creation_date", value:"2009-01-19 13:47:40 +0100 (Mon, 19 Jan 2009)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_cve_id("CVE-2009-0047");
  script_name("Gale EVP_VerifyFinal() Security Bypass Vulnerability");
  script_xref(name:"URL", value:"http://www.securityfocus.com/archive/1/499855");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/33150");
  script_xref(name:"URL", value:"http://www.ocert.org/advisories/ocert-2008-016.html");

  script_tag(name:"qod_type", value:"executable_version");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_family("General");
  script_dependencies("gb_gale_detect.nasl");
  script_mandatory_keys("Gale/Linux/Ver");
  script_tag(name:"impact", value:"Successful exploitation could allow remote attackers to bypass the certificate
  validation checks and can cause spoofing attacks via signature checks on DSA
  and ECDSA keys used with SSL/TLS.");
  script_tag(name:"affected", value:"Gale version 0.99 and prior on Linux.");
  script_tag(name:"insight", value:"The flaw is due to improper validation of return value in
  EVP_VerifyFinal function of openssl.");
  script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
  of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
  release, disable respective features, remove the product or replace the product by another one.");
  script_tag(name:"summary", value:"Gale is prone to a security bypass vulnerability.");
  script_tag(name:"solution_type", value:"WillNotFix");
  exit(0);
}

include("version_func.inc");

galePort = 11512;
if(!get_udp_port_state(galePort)){
  exit(0);
}

galeVer = get_kb_item("Gale/Linux/Ver");
if(!galeVer){
  exit(0);
}

# version 0.99 and prior
if(version_is_less_equal(version:galeVer, test_version:"0.99")){
  security_message(galePort);
}