6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
8.5 High
AI Score
Confidence
High
0.029 Low
EPSS
Percentile
90.9%
Asterisk is prone to multiple vulnerabilities.
# SPDX-FileCopyrightText: 2022 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:digium:asterisk";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.127000");
script_version("2023-12-19T05:05:25+0000");
script_tag(name:"last_modification", value:"2023-12-19 05:05:25 +0000 (Tue, 19 Dec 2023)");
script_tag(name:"creation_date", value:"2022-03-08 02:05:15 +0000 (Tue, 08 Mar 2022)");
script_tag(name:"cvss_base", value:"6.4");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2022-04-22 17:47:00 +0000 (Fri, 22 Apr 2022)");
script_cve_id("CVE-2022-26498", "CVE-2022-26499");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Asterisk Multiple Vulnerabilities (AST-2022-001, AST-2022-002)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2022 Greenbone AG");
script_family("General");
script_dependencies("gb_digium_asterisk_sip_detect.nasl");
script_mandatory_keys("digium/asterisk/detected");
script_tag(name:"summary", value:"Asterisk is prone to multiple vulnerabilities.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The following vulnerabilities exist:
- CVE-2022-26498: Resource exhaustion with large files
- CVE-2022-26499: Denial of service (DoS) due to an undefined behavior after freeing a dialog set
SSRF vulnerability with Identity header");
script_tag(name:"affected", value:"Asterisk Open Source 16.x, 18.x, 19.x");
script_tag(name:"solution", value:"Update to version 16.25.2, 18.11.2, 19.3.2 or later.");
script_xref(name:"URL", value:"https://downloads.asterisk.org/pub/security/AST-2022-001.html");
script_xref(name:"URL", value:"https://downloads.asterisk.org/pub/security/AST-2022-002.html");
exit(0);
}
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_in_range(version: version, test_version: "16.15.0", test_version2: "16.25.1")) {
report = report_fixed_ver(installed_version: version, fixed_version: "16.25.2");
security_message(port: port, data: report, proto: "udp");
exit(0);
}
if (version_in_range(version: version, test_version: "18.0", test_version2: "18.11.1")) {
report = report_fixed_ver(installed_version: version, fixed_version: "18.11.2");
security_message(port: port, data: report, proto: "udp");
exit(0);
}
if (version_in_range(version: version, test_version: "19.0", test_version2: "19.3.1")) {
report = report_fixed_ver(installed_version: version, fixed_version: "19.3.2");
security_message(port: port, data: report, proto: "udp");
exit(0);
}
exit(99);
6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
8.5 High
AI Score
Confidence
High
0.029 Low
EPSS
Percentile
90.9%