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This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.EULEROS_SA-2021-2138.NASL
HistoryJul 06, 2021 - 12:00 a.m.

EulerOS Virtualization 3.0.2.2 : iscsi-initiator-utils (EulerOS-SA-2021-2138)

2021-07-0600:00:00
This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
22

7.9 High

AI Score

Confidence

Low

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

  • An issue was discovered in Contiki through 3.0. An Out-of-Bounds Read vulnerability exists in the uIP TCP/IP Stack component when calculating the checksums for IP packets in upper_layer_chksum in net/ipv4/uip.c.(CVE-2020-13987)

  • An issue was discovered in Contiki through 3.0. An Integer Overflow exists in the uIP TCP/IP Stack component when parsing TCP MSS options of IPv4 network packets in uip_process in net/ipv4/uip.c.(CVE-2020-13988)

  • An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. When the Urgent flag is set in a TCP packet, and the stack is configured to ignore the urgent data, the stack attempts to use the value of the Urgent pointer bytes to separate the Urgent data from the normal data, by calculating the offset at which the normal data should be present in the global buffer.
    However, the length of this offset is not checked therefore, for large values of the Urgent pointer bytes, the data pointer can point to memory that is way beyond the data buffer in uip_process in uip.c.(CVE-2020-17437)

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 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(151402);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/08");

  script_cve_id("CVE-2020-13987", "CVE-2020-13988", "CVE-2020-17437");
  script_xref(name:"CEA-ID", value:"CEA-2020-0139");

  script_name(english:"EulerOS Virtualization 3.0.2.2 : iscsi-initiator-utils (EulerOS-SA-2021-2138)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the iscsi-initiator-utils packages
installed, the EulerOS Virtualization installation on the remote host
is affected by the following vulnerabilities :

  - An issue was discovered in Contiki through 3.0. An
    Out-of-Bounds Read vulnerability exists in the uIP
    TCP/IP Stack component when calculating the checksums
    for IP packets in upper_layer_chksum in
    net/ipv4/uip.c.(CVE-2020-13987)

  - An issue was discovered in Contiki through 3.0. An
    Integer Overflow exists in the uIP TCP/IP Stack
    component when parsing TCP MSS options of IPv4 network
    packets in uip_process in
    net/ipv4/uip.c.(CVE-2020-13988)

  - An issue was discovered in uIP 1.0, as used in Contiki
    3.0 and other products. When the Urgent flag is set in
    a TCP packet, and the stack is configured to ignore the
    urgent data, the stack attempts to use the value of the
    Urgent pointer bytes to separate the Urgent data from
    the normal data, by calculating the offset at which the
    normal data should be present in the global buffer.
    However, the length of this offset is not checked
    therefore, for large values of the Urgent pointer
    bytes, the data pointer can point to memory that is way
    beyond the data buffer in uip_process in
    uip.c.(CVE-2020-17437)

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-2021-2138
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a1a5f426");
  script_set_attribute(attribute:"solution", value:
"Update the affected iscsi-initiator-utils packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/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:L/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-2020-17437");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"patch_publication_date", value:"2021/07/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:iscsi-initiator-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:iscsi-initiator-utils-iscsiuio");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.2.2") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.2");
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["iscsi-initiator-utils-6.2.0.874-8.h8",
        "iscsi-initiator-utils-iscsiuio-6.2.0.874-8.h8"];

foreach (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
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "iscsi-initiator-utils");
}
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7.9 High

AI Score

Confidence

Low

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