OpenSSL DSA_do_verify() Security Bypass Vulnerability in NASL

###############################################################################
# OpenVAS Vulnerability Test
# $Id: secpod_nasl_sec_bypass_vuln.nasl 5122 2017-01-27 12:16:00Z teissa $
#
# OpenSSL DSA_do_verify() Security Bypass Vulnerability in NASL
#
# Authors:
# Sharath S <[email protected]>
#
# Copyright:
# Copyright (c) 2009 SecPod, http://www.secpod.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

tag_solution = "Apply Patch
  http://cvs.fedoraproject.org/viewvc/rpms/libnasl/F-10/libnasl.spec?r1=1.16&r2=1.17

  *********
  NOTE: Please ignore the warning, if patch is applied.
  *********";

tag_impact = "Successful exploitation could allow remote attackers to bypass the
  certificate validation checks and can cause spoofing attacks via
  signature checks with SSL/TLS.
  Impact Level: System/Application";
tag_affected = "Nessus Attack Scripting Language (NASL) version 2.2.11 and prior on Linux.";
tag_insight = "The flaw is due to improper validation of return value in
  nasl/nasl_crypto2.c file from DSA_do_verify function of OpenSSL.";
tag_summary = "The host is running NASL and is prone to Security Bypass
  vulnerability.";

if(description)
{
  script_id(900190);
  script_version("$Revision: 5122 $");
  script_tag(name:"last_modification", value:"$Date: 2017-01-27 13:16:00 +0100 (Fri, 27 Jan 2017) $");
  script_tag(name:"creation_date", value:"2009-01-22 12:00:13 +0100 (Thu, 22 Jan 2009)");
  script_tag(name:"cvss_base", value:"5.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:P");
  script_cve_id("CVE-2008-5077", "CVE-2009-0125");
  script_bugtraq_id(33151);
  script_name("OpenSSL DSA_do_verify() Security Bypass Vulnerability in NASL");

  script_xref(name : "URL" , value : "https://bugzilla.redhat.com/show_bug.cgi?id=479655");
  script_xref(name : "URL" , value : "http://openwall.com/lists/oss-security/2009/01/12/4");
  script_xref(name : "URL" , value : "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511517");

  script_tag(name:"qod_type", value:"executable_version");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 SecPod");
  script_family("General");
  script_dependencies("secpod_nasl_detect_lin.nasl");
  script_require_keys("NASL/Linux/Ver");
  script_tag(name : "impact" , value : tag_impact);
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name : "summary" , value : tag_summary);
  script_tag(name : "solution" , value : tag_solution);
  exit(0);
}


include("version_func.inc");

naslPort = 1241;
if(!get_tcp_port_state(naslPort)){
  exit(0);
}

naslVer = get_kb_item("NASL/Linux/Ver");
if(!naslVer){
  exit(0);
}

# Check for version 2.2.11 and prior
if(version_is_less_equal(version:naslVer, test_version:"2.2.11")){
  security_message(naslPort);
}