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openvasCopyright (C) 2021 Greenbone Networks GmbHOPENVAS:1361412562310117818
HistoryDec 09, 2021 - 12:00 a.m.

Collabora CODE / Collabora Online < 4.2.17-2 / 5.x < 6.4.9-6 Authorization Bypass Vulnerability

2021-12-0900:00:00
Copyright (C) 2021 Greenbone Networks GmbH
plugins.openvas.org
1

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.1 High

AI Score

Confidence

Low

0.002 Low

EPSS

Percentile

53.8%

Collabora CODE (Collabora Online Development Edition) and
Collabora Online are prone to an authorization bypass vulnerability.

# Copyright (C) 2021 Greenbone Networks GmbH
# 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-or-later
#
# 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.

CPE = "cpe:/a:collabora:online";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.117818");
  script_version("2021-12-09T14:03:23+0000");
  script_cve_id("CVE-2021-32744");
  script_tag(name:"last_modification", value:"2021-12-09 14:03:23 +0000 (Thu, 09 Dec 2021)");
  script_tag(name:"creation_date", value:"2021-12-09 10:14:13 +0000 (Thu, 09 Dec 2021)");
  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_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-07-30 15:32:00 +0000 (Fri, 30 Jul 2021)");
  script_name("Collabora CODE / Collabora Online < 4.2.17-2 / 5.x < 6.4.9-6 Authorization Bypass Vulnerability");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_collabora_libreoffice_online_http_detect.nasl");
  script_mandatory_keys("collabora_libreoffice/online/detected");

  script_xref(name:"URL", value:"https://github.com/CollaboraOnline/online/security/advisories/GHSA-32xj-9x82-q9jw");

  script_tag(name:"summary", value:"Collabora CODE (Collabora Online Development Edition) and
  Collabora Online are prone to an authorization bypass vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"Unauthenticated attacker is able to gain access to files which
  are currently opened by other users in the Collabora Online editor. For successful exploitation
  the attacker is required to guess the file identifier - the predictability of this file identifier
  is dependent on external file-storage implementations (this is a potential 'IDOR' - Insecure
  Direct Object Reference - vulnerability).");

  script_tag(name:"affected", value:"Collabora CODE / Collabora Online versions prior to 4.2.17-2 and
  5.x/6.x prior to 6.4.9-6.");

  script_tag(name:"solution", value:"Update to version 4.2.17-2, 6.4.9-6 or later.");

  # nb: We're currently only getting the version like 4.2.17 and not 4.2.17-2 from the remote detection.
  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

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

if( isnull( port = get_app_port( cpe:CPE ) ) )
  exit( 0 );

if( ! infos = get_app_version_and_location( cpe:CPE, port:port, exit_no_version:TRUE ) )
  exit( 0 );

version = infos["version"];
location = infos["location"];

if( version_is_less_equal( version:version, test_version:"4.2.17" ) ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"4.2.17-2", install_path:location );
  security_message( port:port, data:report );
  exit( 0 );
}

if( version_in_range( version:version, test_version:"5.0", test_version2:"6.4.9" ) ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"6.4.9-6", install_path:location );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.1 High

AI Score

Confidence

Low

0.002 Low

EPSS

Percentile

53.8%

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