CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
79.7%
The version of kube-vip-cloud-provider / multus / application-gateway-kubernetes-ingress / cri-o / keda / moby-engine / kured installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-21698 advisory.
promhttp.InstrumentHandler*
middleware except RequestsInFlight
;method
label name to our middleware; and not have any firewall/LB/proxy that filters away requests with unknown method
.method
label name from counter/gauge used in the InstrumentHandler; turning off affected promhttp handlers; adding custom middleware before promhttp handler that will sanitize the request method given by Go http.Request; and using a reverse proxy or web application firewall, configured to only allow a limited set of methods. (CVE-2022-21698)Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(185993);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/12");
script_cve_id("CVE-2022-21698");
script_name(english:"CBL Mariner 2.0 Security Update: kube-vip-cloud-provider / multus / application-gateway-kubernetes-ingress / cri-o / keda / moby-engine / kured (CVE-2022-21698)");
script_set_attribute(attribute:"synopsis", value:
"The remote CBL Mariner host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The version of kube-vip-cloud-provider / multus / application-gateway-kubernetes-ingress / cri-o / keda / moby-engine /
kured installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the CVE-2022-21698 advisory.
- client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package
in client_golang provides tooling around HTTP servers and clients. In client_golang prior to version
1.11.1, HTTP server is susceptible to a Denial of Service through unbounded cardinality, and potential
memory exhaustion, when handling requests with non-standard HTTP methods. In order to be affected, an
instrumented software must use any of `promhttp.InstrumentHandler*` middleware except `RequestsInFlight`;
not filter any specific methods (e.g GET) before middleware; pass metric with `method` label name to our
middleware; and not have any firewall/LB/proxy that filters away requests with unknown `method`.
client_golang version 1.11.1 contains a patch for this issue. Several workarounds are available, including
removing the `method` label name from counter/gauge used in the InstrumentHandler; turning off affected
promhttp handlers; adding custom middleware before promhttp handler that will sanitize the request method
given by Go http.Request; and using a reverse proxy or web application firewall, configured to only allow
a limited set of methods. (CVE-2022-21698)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://nvd.nist.gov/vuln/detail/CVE-2022-21698");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-21698");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/02/15");
script_set_attribute(attribute:"patch_publication_date", value:"2023/11/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/19");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:application-gateway-kubernetes-ingress");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:cri-o");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:cri-o-kubeadm-criconfig");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:kube-vip-cloud-provider");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:kube-vip-cloud-provider-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:kured");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:kured-k8s-yaml");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:microsoft:cbl-mariner");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"MarinerOS Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/CBLMariner/release", "Host/CBLMariner/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item('Host/CBLMariner/release');
if (isnull(release) || 'CBL-Mariner' >!< release) audit(AUDIT_OS_NOT, 'CBL-Mariner');
var os_ver = pregmatch(pattern: "CBL-Mariner ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'CBL-Mariner');
os_ver = os_ver[1];
if (! preg(pattern:"^2([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'CBL-Mariner 2.0', 'CBL-Mariner ' + os_ver);
if (!get_kb_item('Host/CBLMariner/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu)
audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'CBL-Mariner', cpu);
var pkgs = [
{'reference':'application-gateway-kubernetes-ingress-1.4.0-17.cm2', 'cpu':'x86_64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'application-gateway-kubernetes-ingress-1.4.0-17.cm2', 'cpu':'aarch64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'cri-o-1.21.7-2.cm2', 'cpu':'x86_64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'cri-o-1.21.7-2.cm2', 'cpu':'aarch64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'cri-o-kubeadm-criconfig-1.21.7-2.cm2', 'cpu':'x86_64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'cri-o-kubeadm-criconfig-1.21.7-2.cm2', 'cpu':'aarch64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kube-vip-cloud-provider-0.0.2-14.cm2', 'cpu':'x86_64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kube-vip-cloud-provider-0.0.2-14.cm2', 'cpu':'aarch64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kube-vip-cloud-provider-debuginfo-0.0.2-14.cm2', 'cpu':'x86_64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kube-vip-cloud-provider-debuginfo-0.0.2-14.cm2', 'cpu':'aarch64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kured-1.13.2-1.cm2', 'cpu':'x86_64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kured-1.13.2-1.cm2', 'cpu':'aarch64', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kured-k8s-yaml-1.13.2-1.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kured-k8s-yaml-1.13.2-1.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
var exists_check = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = 'CBLMariner-' + package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'application-gateway-kubernetes-ingress / cri-o / etc');
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
79.7%