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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.EULEROS_SA-2023-3509.NASL
HistoryJan 16, 2024 - 12:00 a.m.

EulerOS Virtualization 2.10.1 : python3 (EulerOS-SA-2023-3509)

2024-01-1600:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
7
euleros
virtualization
python3
vulnerability
tls
authentication
server
buffer overflow
cve-2023-40217
security advisory

7 High

AI Score

Confidence

Low

According to the versions of the python3 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  • 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 Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(188332);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/16");

  script_cve_id("CVE-2023-40217");
  script_xref(name:"IAVA", value:"2023-A-0442");

  script_name(english:"EulerOS Virtualization 2.10.1 : python3 (EulerOS-SA-2023-3509)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the python3 packages installed, the EulerOS Virtualization installation on the remote host
is affected by the following vulnerabilities :

  - 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 Tenable Network Security has extracted the preceding description block directly from the EulerOS security
advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional
issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2023-3509
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4e7ddec8");
  script_set_attribute(attribute:"solution", value:
"Update the affected python3 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:"2023/12/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/01/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-fgo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-unversioned-command");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.10.1");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei 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/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.10.1") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.10.1");
if (!get_kb_item("Host/EulerOS/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 && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "python3-3.7.9-9.h32.eulerosv2r10",
  "python3-fgo-3.7.9-9.h32.eulerosv2r10",
  "python3-unversioned-command-3.7.9-9.h32.eulerosv2r10"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) 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");
}
VendorProductVersionCPE
huaweieulerospython3p-cpe:/a:huawei:euleros:python3
huaweieulerospython3-fgop-cpe:/a:huawei:euleros:python3-fgo
huaweieulerospython3-unversioned-commandp-cpe:/a:huawei:euleros:python3-unversioned-command
huaweieulerosuvpcpe:/o:huawei:euleros:uvp:2.10.1