5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.9 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
44.8%
OpenSSL is prone to a denial of service (DoS) vulnerability.
# SPDX-FileCopyrightText: 2023 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:openssl:openssl";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.170675");
script_version("2024-01-30T14:37:03+0000");
script_tag(name:"last_modification", value:"2024-01-30 14:37:03 +0000 (Tue, 30 Jan 2024)");
script_tag(name:"creation_date", value:"2023-11-07 21:21:37 +0000 (Tue, 07 Nov 2023)");
script_tag(name:"cvss_base", value:"5.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2023-11-21 16:54:00 +0000 (Tue, 21 Nov 2023)");
script_cve_id("CVE-2023-5678");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("OpenSSL DoS Vulnerability (20231106) - Linux");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2023 Greenbone AG");
script_family("Denial of Service");
script_dependencies("gb_openssl_consolidation.nasl", "os_detection.nasl");
script_mandatory_keys("openssl/detected", "Host/runs_unixoide");
script_tag(name:"summary", value:"OpenSSL is prone to a denial of service (DoS) vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"Applications that use the functions DH_generate_key() to generate
an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(),
DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters
may experience long delays.");
script_tag(name:"impact", value:"Where the key or parameters that are being checked have been
obtained from an untrusted source this may lead to a denial of service.");
script_tag(name:"affected", value:"OpenSSL versions 1.0.2, 1.1.1, 3.0 and 3.1.");
# nb: The "x" here is not a place holder but an actual version...
script_tag(name:"solution", value:"Update to version 1.0.2zj, 1.1.1x, 3.0.13, 3.1.5 or later.");
script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20231106.txt");
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_in_range_exclusive(version: version, test_version_lo: "1.0.2", test_version_up: "1.0.2zj")) {
report = report_fixed_ver(installed_version: version, fixed_version: "1.0.2zj", install_path: location);
security_message(port: port, data: report);
exit(0);
}
if (version_in_range_exclusive(version: version, test_version_lo: "1.1.1", test_version_up: "1.1.1x")) {
report = report_fixed_ver(installed_version: version, fixed_version: "1.1.1x", install_path: location);
security_message(port: port, data: report);
exit(0);
}
if (version_in_range_exclusive(version: version, test_version_lo: "3.0.0", test_version_up: "3.0.13")) {
report = report_fixed_ver(installed_version: version, fixed_version: "3.0.13", install_path: location);
security_message(port: port, data: report);
exit(0);
}
if (version_in_range_exclusive(version: version, test_version_lo: "3.1.0", test_version_up: "3.1.5")) {
report = report_fixed_ver(installed_version: version, fixed_version: "3.1.5", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.9 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
44.8%