The remote Fedora 39 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2023-7934802344 advisory. The HTTP/2 protocol allows a denial of service because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. (CVE-2023-44487
Reporter | Title | Published | Views | Family All 200 |
---|---|---|---|---|
Hive Pro Threat Advisories | HTTP2 Zero-Day Exploited for the Most Explosive DDoS Attacks | 12 Oct 202308:09 | – | hivepro |
Ubuntu | .NET vulnerability | 10 Oct 202300:00 | – | ubuntu |
Ubuntu | nghttp2 vulnerability | 22 Nov 202300:00 | – | ubuntu |
Imperva Blog | Protecting Against HTTP/2 Rapid Reset: CVE-2023-44487 | 10 Oct 202312:24 | – | impervablog |
OSV | BIT-node-2023-44487 | 6 Mar 202410:58 | – | osv |
OSV | Important: nghttp2 security update | 24 Oct 202318:36 | – | osv |
OSV | Important: tomcat security update | 19 Oct 202300:00 | – | osv |
OSV | Important: varnish security update | 24 Oct 202318:35 | – | osv |
OSV | Red Hat Security Advisory: nodejs security update | 30 Sep 202410:56 | – | osv |
OSV | Important: nodejs:16 security update | 18 Oct 202300:00 | – | osv |
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory FEDORA-2023-7934802344
#
include('compat.inc');
if (description)
{
script_id(185170);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/09");
script_cve_id("CVE-2023-44487");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2023/10/31");
script_xref(name:"FEDORA", value:"2023-7934802344");
script_xref(name:"CEA-ID", value:"CEA-2024-0004");
script_name(english:"Fedora 39 : cachelib / fb303 / fbthrift / fizz / folly / mcrouter / mvfst / etc (2023-7934802344)");
script_set_attribute(attribute:"synopsis", value:
"The remote Fedora host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Fedora 39 host has packages installed that are affected by a vulnerability as referenced in the
FEDORA-2023-7934802344 advisory.
- The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation
can reset many streams quickly, as exploited in the wild in August through October 2023. (CVE-2023-44487)
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://bodhi.fedoraproject.org/updates/FEDORA-2023-7934802344");
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:C");
script_set_cvss_temporal_vector("CVSS2#E:F/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:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-44487");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/10/10");
script_set_attribute(attribute:"patch_publication_date", value:"2023/10/19");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/07");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:39");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:cachelib");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:fb303");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:fbthrift");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:fizz");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:folly");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:mcrouter");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:mvfst");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:proxygen");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:wangle");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:watchman");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:wdt");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Fedora 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/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Fedora' >!< os_release) audit(AUDIT_OS_NOT, 'Fedora');
var os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Fedora');
os_ver = os_ver[1];
if (! preg(pattern:"^39([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Fedora 39', 'Fedora ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Fedora', cpu);
var pkgs = [
{'reference':'cachelib-17^20231016-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'fb303-2023.10.16.00-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'fbthrift-2023.10.16.00-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'fizz-2023.10.16.00-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'folly-2023.10.16.00-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mcrouter-0.41.0.20231016-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mvfst-2023.10.16.00-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'proxygen-2023.10.16.00-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'wangle-2023.10.16.00-1.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'watchman-2021.05.10.00-24.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE},
{'reference':'wdt-1.32.1910230^20230711git3b52ef5-2.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach 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;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = 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 (reference && _release) {
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_HOLE,
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, 'cachelib / fb303 / fbthrift / fizz / folly / mcrouter / mvfst / etc');
}
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