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nessusThis script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.ROCKY_LINUX_RLSA-2023-5463.NASL
HistoryOct 06, 2023 - 12:00 a.m.

Rocky Linux 8 : python3.11 (RLSA-2023:5463)

2023-10-0600:00:00
This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
12
rocky linux 8
vulnerability
python 3.11
rlsa-2023:5463
tls
client authentication
nessus

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

0.0005 Low

EPSS

Percentile

18.4%

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2023:5463 advisory.

  • An issue was discovered in Python before 3.8.18, 3.9.x before 3.9.18, 3.10.x before 3.10.13, and 3.11.x before 3.11.5. It primarily affects servers (such as HTTP servers) that use TLS client authentication. If a TLS server-side socket is created, receives data into the socket buffer, and then is closed quickly, there is a brief window where the SSLSocket instance will detect the socket as not connected and won’t initiate a handshake, but buffered data will still be readable from the socket buffer. This data will not be authenticated if the server-side TLS peer is expecting client certificate authentication, and is indistinguishable from valid TLS stream data. Data is limited in size to the amount that will fit in the buffer. (The TLS connection cannot directly be used for data exfiltration because the vulnerable code path requires that the connection be closed on initialization of the SSLSocket.) (CVE-2023-40217)

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 package checks in this plugin were extracted from
# Rocky Linux Security Advisory RLSA-2023:5463.
##

include('compat.inc');

if (description)
{
  script_id(182719);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/06");

  script_cve_id("CVE-2023-40217");
  script_xref(name:"RLSA", value:"2023:5463");

  script_name(english:"Rocky Linux 8 : python3.11 (RLSA-2023:5463)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Rocky Linux host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the
RLSA-2023:5463 advisory.

  - An issue was discovered in Python before 3.8.18, 3.9.x before 3.9.18, 3.10.x before 3.10.13, and 3.11.x
    before 3.11.5. It primarily affects servers (such as HTTP servers) that use TLS client authentication. If
    a TLS server-side socket is created, receives data into the socket buffer, and then is closed quickly,
    there is a brief window where the SSLSocket instance will detect the socket as not connected and won't
    initiate a handshake, but buffered data will still be readable from the socket buffer. This data will not
    be authenticated if the server-side TLS peer is expecting client certificate authentication, and is
    indistinguishable from valid TLS stream data. Data is limited in size to the amount that will fit in the
    buffer. (The TLS connection cannot directly be used for data exfiltration because the vulnerable code path
    requires that the connection be closed on initialization of the SSLSocket.) (CVE-2023-40217)

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://errata.rockylinux.org/RLSA-2023:5463");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2235789");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-40217");

  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:"2023/08/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/10/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11-idle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11-rpm-macros");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python3.11-tkinter");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:rocky:linux:8");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Rocky Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RockyLinux/release", "Host/RockyLinux/rpm-list", "Host/cpu");

  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/RockyLinux/release');
if (isnull(os_release) || 'Rocky Linux' >!< os_release) audit(AUDIT_OS_NOT, 'Rocky Linux');
var os_ver = pregmatch(pattern: "Rocky(?: Linux)? release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Rocky Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Rocky Linux 8.x', 'Rocky Linux ' + os_ver);

if (!get_kb_item('Host/RockyLinux/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, 'Rocky Linux', cpu);

var pkgs = [
    {'reference':'python3.11-3.11.2-2.el8_8.2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3.11-debug-3.11.2-2.el8_8.2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3.11-debuginfo-3.11.2-2.el8_8.2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3.11-debugsource-3.11.2-2.el8_8.2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3.11-devel-3.11.2-2.el8_8.2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3.11-idle-3.11.2-2.el8_8.2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3.11-libs-3.11.2-2.el8_8.2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3.11-rpm-macros-3.11.2-2.el8_8.2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3.11-test-3.11.2-2.el8_8.2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3.11-tkinter-3.11.2-2.el8_8.2', 'cpu':'aarch64', 'release':'8', '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 = 'Rocky-' + 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, 'python3.11 / python3.11-debug / python3.11-debuginfo / etc');
}
VendorProductVersionCPE
rockylinuxpython3.11p-cpe:/a:rocky:linux:python3.11
rockylinuxpython3.11-debugp-cpe:/a:rocky:linux:python3.11-debug
rockylinuxpython3.11-debuginfop-cpe:/a:rocky:linux:python3.11-debuginfo
rockylinuxpython3.11-debugsourcep-cpe:/a:rocky:linux:python3.11-debugsource
rockylinuxpython3.11-develp-cpe:/a:rocky:linux:python3.11-devel
rockylinuxpython3.11-idlep-cpe:/a:rocky:linux:python3.11-idle
rockylinuxpython3.11-libsp-cpe:/a:rocky:linux:python3.11-libs
rockylinuxpython3.11-rpm-macrosp-cpe:/a:rocky:linux:python3.11-rpm-macros
rockylinuxpython3.11-testp-cpe:/a:rocky:linux:python3.11-test
rockylinuxpython3.11-tkinterp-cpe:/a:rocky:linux:python3.11-tkinter
Rows per page:
1-10 of 111

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

0.0005 Low

EPSS

Percentile

18.4%