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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.FEDORA_2023-ACBEE8F31A.NASL
HistoryApr 29, 2024 - 12:00 a.m.

Fedora 40 : cachelib / fb303 / fbthrift / fizz / folly / mcrouter / mvfst / etc (2023-acbee8f31a)

2024-04-2900:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
8
fedora 40
cachelib
fb303
fbthrift
fizz
folly
mcrouter
mvfst
http/2
denial of service
cve-2023-44487

7.5 High

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

7 High

AI Score

Confidence

Low

0.732 High

EPSS

Percentile

98.1%

The remote Fedora 40 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2023-acbee8f31a 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.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory FEDORA-2023-acbee8f31a
#

include('compat.inc');

if (description)
{
  script_id(194616);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/30");

  script_cve_id("CVE-2023-44487");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2023/10/31");
  script_xref(name:"FEDORA", value:"2023-acbee8f31a");
  script_xref(name:"CEA-ID", value:"CEA-2024-0004");

  script_name(english:"Fedora 40 : cachelib / fb303 / fbthrift / fizz / folly / mcrouter / mvfst / etc (2023-acbee8f31a)");

  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 40 host has packages installed that are affected by a vulnerability as referenced in the
FEDORA-2023-acbee8f31a 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-acbee8f31a");
  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:"2023/10/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:40");
  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) 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:"^40([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Fedora 40', '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.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'fb303-2023.10.16.00-1.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'fbthrift-2023.10.16.00-1.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'fizz-2023.10.16.00-1.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'folly-2023.10.16.00-1.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'mcrouter-0.41.0.20231016-1.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'mvfst-2023.10.16.00-1.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'proxygen-2023.10.16.00-1.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'wangle-2023.10.16.00-1.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'watchman-2021.05.10.00-24.fc40', 'release':'FC40', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'wdt-1.32.1910230^20230711git3b52ef5-2.fc40', 'release':'FC40', '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');
}
VendorProductVersionCPE
fedoraprojectfedorafbthriftp-cpe:/a:fedoraproject:fedora:fbthrift
fedoraprojectfedoracachelibp-cpe:/a:fedoraproject:fedora:cachelib
fedoraprojectfedorafizzp-cpe:/a:fedoraproject:fedora:fizz
fedoraprojectfedorafb303p-cpe:/a:fedoraproject:fedora:fb303
fedoraprojectfedorawdtp-cpe:/a:fedoraproject:fedora:wdt
fedoraprojectfedoramvfstp-cpe:/a:fedoraproject:fedora:mvfst
fedoraprojectfedorawanglep-cpe:/a:fedoraproject:fedora:wangle
fedoraprojectfedoraproxygenp-cpe:/a:fedoraproject:fedora:proxygen
fedoraprojectfedoramcrouterp-cpe:/a:fedoraproject:fedora:mcrouter
fedoraprojectfedorafollyp-cpe:/a:fedoraproject:fedora:folly
Rows per page:
1-10 of 121

7.5 High

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

7 High

AI Score

Confidence

Low

0.732 High

EPSS

Percentile

98.1%