CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
53.1%
ownCloud is prone to an information disclosure vulnerability.
# SPDX-FileCopyrightText: 2021 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
CPE = "cpe:/a:owncloud:owncloud";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.145995");
script_version("2023-12-01T16:11:30+0000");
script_tag(name:"last_modification", value:"2023-12-01 16:11:30 +0000 (Fri, 01 Dec 2023)");
script_tag(name:"creation_date", value:"2021-05-21 04:42:54 +0000 (Fri, 21 May 2021)");
script_tag(name:"cvss_base", value:"4.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:N/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-05-26 00:04:00 +0000 (Wed, 26 May 2021)");
script_cve_id("CVE-2021-29659");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
script_name("ownCloud < 10.7 Information Disclosure Vulnerability");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone AG");
script_family("Web application abuses");
script_dependencies("gb_owncloud_http_detect.nasl");
script_mandatory_keys("owncloud/detected");
script_tag(name:"summary", value:"ownCloud is prone to an information disclosure vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The sharing dialog implements a user enumeration mitigation to
prevent an authenticated user from getting a list of all accounts registered on the instance via
the auto-complete dropdown. In the default configuration at least 3 characters of the name or
email of the share-receiver ('Sharee') must match an existing account to trigger the autocomplete.
Due to a bug in the related api endpoint the attacker can enumerate all users in a single request
by entering three whitespaces.
Secondary the retrieval of all users on a large instance could cause higher than average load
on the instance.");
script_tag(name:"affected", value:"ownCloud version 10.6 and probably prior.");
script_tag(name:"solution", value:"Update to version 10.7 or later.");
script_xref(name:"URL", value:"https://owncloud.com/security-advisories/cve-2021-29659/");
exit(0);
}
include("host_details.inc");
include("version_func.inc");
if (!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(version: version, test_version: "10.7")) {
report = report_fixed_ver(installed_version: version, fixed_version: "10.7", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
53.1%