IkiWiki Authentication Bypass Vulnerability

2018-04-18T00:00:00
ID OPENVAS:1361412562310113160
Type openvas
Reporter Copyright (C) 2018 Greenbone Networks GmbH
Modified 2019-08-06T00:00:00

Description

A flaw, similar to CVE-2016-9646 exists in the passwordauth plugin

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
#
# IkiWiki Authentication Bypass Vulnerability
#
# Authors:
# Jan Philipp Schulte <jan.schulte@greenbone.net>
#
# Copyright:
# Copyright (C) 2018 Greenbone Networks GmbH, https://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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.
###############################################################################

if( description )
{
  script_oid("1.3.6.1.4.1.25623.1.0.113160");
  script_version("2019-08-06T11:17:21+0000");
  script_tag(name:"last_modification", value:"2019-08-06 11:17:21 +0000 (Tue, 06 Aug 2019)");
  script_tag(name:"creation_date", value:"2018-04-18 14:00:00 +0200 (Wed, 18 Apr 2018)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_tag(name:"qod_type", value:"remote_banner_unreliable");

  script_tag(name:"solution_type", value:"VendorFix");

  script_cve_id("CVE-2017-0356");

  script_name("IkiWiki Authentication Bypass Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2018 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_ikiwiki_consolidation.nasl");
  script_mandatory_keys("ikiwiki/detected");

  script_tag(name:"summary", value:"A flaw, similar to CVE-2016-9646 exists in the passwordauth plugin's use of CGI::FormBuilder,
  allowing an attacker to bypass authentication via repeated parameters");
  script_tag(name:"vuldetect", value:"The script checks if a vulnerable version is present on the target host.");
  script_tag(name:"impact", value:"Successful exploitation would allow an attacker to bypass access restrictions.");
  script_tag(name:"affected", value:"IkiWiki before version 3.20170111.");
  script_tag(name:"solution", value:"Update to version 3.20170111.");

  script_xref(name:"URL", value:"https://marc.info/?l=oss-security&m=148418234314276&w=2");
  script_xref(name:"URL", value:"https://ikiwiki.info/security/#cve-2017-0356");

  exit(0);
}

CPE = "cpe:/a:ikiwiki:ikiwiki";

include( "host_details.inc" );
include( "version_func.inc" );

if( ! port = get_app_port( cpe: CPE ) ) exit( 0 );
if( ! version = get_app_version( cpe: CPE, port: port ) ) exit( 0 );

if( version_is_less( version: version, test_version: "3.20170111" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "3.20170111" );
  security_message( data: report, port: port );
  exit( 0 );
}

exit( 99 );