According to the versions of the python packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
Python’s elementtree C accelerator failed to initialise Expat’s hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by contructing an XML document that would cause pathological hash collisions in Expat’s internal data structures, consuming large amounts CPU and RAM.(CVE-2018-14647)
A null pointer dereference vulnerability was found in the certificate parsing code in Python. This causes a denial of service to applications when parsing specially crafted certificates. This vulnerability is unlikely to be triggered if application enables SSL/TLS certificate validation and accepts certificates only from trusted root certificate authorities.(CVE-2019-5010)
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(124735);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id(
"CVE-2018-14647",
"CVE-2019-5010"
);
script_name(english:"EulerOS Virtualization 2.5.3 : python (EulerOS-SA-2019-1357)");
script_summary(english:"Checks the rpm output for the updated packages.");
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 python packages installed, the
EulerOS Virtualization installation on the remote host is affected by
the following vulnerabilities :
- Python's elementtree C accelerator failed to initialise
Expat's hash salt during initialization. This could
make it easy to conduct denial of service attacks
against Expat by contructing an XML document that would
cause pathological hash collisions in Expat's internal
data structures, consuming large amounts CPU and
RAM.(CVE-2018-14647)
- A null pointer dereference vulnerability was found in
the certificate parsing code in Python. This causes a
denial of service to applications when parsing
specially crafted certificates. This vulnerability is
unlikely to be triggered if application enables SSL/TLS
certificate validation and accepts certificates only
from trusted root certificate
authorities.(CVE-2019-5010)
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-2019-1357
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a4884fcd");
script_set_attribute(attribute:"solution", value:
"Update the affected python packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"patch_publication_date", value:"2019/05/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tkinter");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.5.3");
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) 2019-2021 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 != "2.5.3") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.5.3");
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 = ["python-2.7.5-58.h13",
"python-devel-2.7.5-58.h13",
"python-libs-2.7.5-58.h13",
"python-tools-2.7.5-58.h13",
"tkinter-2.7.5-58.h13"];
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, "python");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | python | p-cpe:/a:huawei:euleros:python |
huawei | euleros | python-devel | p-cpe:/a:huawei:euleros:python-devel |
huawei | euleros | python-libs | p-cpe:/a:huawei:euleros:python-libs |
huawei | euleros | python-tools | p-cpe:/a:huawei:euleros:python-tools |
huawei | euleros | tkinter | p-cpe:/a:huawei:euleros:tkinter |
huawei | euleros | uvp | cpe:/o:huawei:euleros:uvp:2.5.3 |