5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:P/A:P
4.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
6 Medium
AI Score
Confidence
High
0.012 Low
EPSS
Percentile
85.3%
Eclipse Jetty is prone to a vulnerability where the buffer is not correctly
recycled in Gzip Request inflation.
# SPDX-FileCopyrightText: 2020 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:eclipse:jetty";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.144926");
script_version("2024-06-11T05:05:40+0000");
script_tag(name:"last_modification", value:"2024-06-11 05:05:40 +0000 (Tue, 11 Jun 2024)");
script_tag(name:"creation_date", value:"2020-11-30 06:03:22 +0000 (Mon, 30 Nov 2020)");
script_tag(name:"cvss_base", value:"5.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-07-20 23:15:00 +0000 (Tue, 20 Jul 2021)");
script_cve_id("CVE-2020-27218");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Eclipse Jetty Gzip Vulnerability - Linux");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2020 Greenbone AG");
script_family("Web Servers");
script_dependencies("gb_jetty_http_detect.nasl", "os_detection.nasl");
script_mandatory_keys("jetty/detected", "Host/runs_unixoide");
script_tag(name:"summary", value:"Eclipse Jetty is prone to a vulnerability where the buffer is not correctly
recycled in Gzip Request inflation.");
script_tag(name:"insight", value:"If GZIP request body inflation is enabled and requests from different clients
are multiplexed onto a single connection and if an attacker can send a request with a body that is received
entirely by not consumed by the application, then a subsequent request on the same connection will see that body
prepended to it's body.
The attacker will not see any data, but may inject data into the body of the subsequent request.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"affected", value:"Eclipse Jetty versions 9.4.0.RC0 - 9.4.34.v20201102, 10.0.0.alpha0 -
10.0.0.beta2 and 11.0.0.alpha0 - 11.0.0.beta2.");
script_tag(name:"solution", value:"Update to versions 9.4.35.v20201120, 10.0.0.beta3, 11.0.0.beta3 or later.");
script_xref(name:"URL", value:"https://github.com/eclipse/jetty.project/security/advisories/GHSA-86wm-rrjm-8wh8");
script_xref(name:"URL", value:"https://bugs.eclipse.org/bugs/show_bug.cgi?id=568892");
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, version_regex: "^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+",
exit_no_version: TRUE))
exit(0);
version = infos["version"];
location = infos["location"];
if (version_in_range(version: version, test_version: "9.4.0", test_version2: "9.4.34.20201102")) {
report = report_fixed_ver(installed_version: version, fixed_version: "9.4.35.20201120", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);
5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:P/A:P
4.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
6 Medium
AI Score
Confidence
High
0.012 Low
EPSS
Percentile
85.3%