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
39.2%
PostgreSQL is prone to a memory 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:postgresql:postgresql";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.117685");
script_version("2024-07-19T05:05:32+0000");
script_tag(name:"last_modification", value:"2024-07-19 05:05:32 +0000 (Fri, 19 Jul 2024)");
script_tag(name:"creation_date", value:"2021-09-20 08:33:39 +0000 (Mon, 20 Sep 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:"2022-03-10 20:58:00 +0000 (Thu, 10 Mar 2022)");
script_cve_id("CVE-2021-3677");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("PostgreSQL 11.x < 11.13, 12.x < 12.8, 13.x < 13.4 Memory Disclosure Vulnerability - Linux");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone AG");
script_family("Databases");
script_dependencies("gb_postgresql_consolidation.nasl", "os_detection.nasl");
script_mandatory_keys("postgresql/detected", "Host/runs_unixoide");
script_tag(name:"summary", value:"PostgreSQL is prone to a memory disclosure vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"A purpose-crafted query can read arbitrary bytes of server
memory. In the default configuration, any authenticated database user can complete this attack at
will. The attack does not require the ability to create objects. If server settings include
max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered
variants of the attack may be independent of that setting.");
script_tag(name:"affected", value:"PostgreSQL 11.0 through 11.12, 12.0 through 12.7 and 13.0
through 13.3.");
script_tag(name:"solution", value:"Update to version 11.13, 12.8, 13.4 or later.");
script_xref(name:"URL", value:"https://www.postgresql.org/support/security/CVE-2021-3677/");
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(version: version, test_version: "11.0", test_version2: "11.12")) {
report = report_fixed_ver(installed_version: version, fixed_version: "11.13", install_path: location);
security_message(port: port, data: report);
exit(0);
}
if (version_in_range(version: version, test_version: "12.0", test_version2: "12.7")) {
report = report_fixed_ver(installed_version: version, fixed_version: "12.8", install_path: location);
security_message(port: port, data: report);
exit(0);
}
if (version_in_range(version: version, test_version: "13.0", test_version2: "13.3")) {
report = report_fixed_ver(installed_version: version, fixed_version: "13.4", 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
39.2%