CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
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
AI Score
Confidence
High
EPSS
Percentile
85.9%
According to the versions of the python2 packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :
A ZIP bomb attack was found in the Python zipfile module. A remote attacker could abuse this flaw by providing a specially crafted ZIP file that, when decompressed by zipfile, would exhaust system resources resulting in a denial of service.(CVE-2019-9674)
The Wave_read._read_fmt_chunk function in Lib/wave.py in Python through 3.6.4 does not ensure a nonzero channel value, which allows attackers to cause a denial of service (divide-by-zero and exception) via a crafted wav format audio file. NOTE: the vendor disputes this issue because Python applications ‘need to be prepared to handle a wide variety of exceptions.’(CVE-2017-18207)
Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.(CVE-2020-8492)
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(135131);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/20");
script_cve_id("CVE-2017-18207", "CVE-2019-9674", "CVE-2020-8492");
script_name(english:"EulerOS Virtualization for ARM 64 3.0.6.0 : python2 (EulerOS-SA-2020-1344)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing multiple security
updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the python2 packages installed, the
EulerOS Virtualization for ARM 64 installation on the remote host is
affected by the following vulnerabilities :
- A ZIP bomb attack was found in the Python zipfile
module. A remote attacker could abuse this flaw by
providing a specially crafted ZIP file that, when
decompressed by zipfile, would exhaust system resources
resulting in a denial of service.(CVE-2019-9674)
- The Wave_read._read_fmt_chunk function in Lib/wave.py
in Python through 3.6.4 does not ensure a nonzero
channel value, which allows attackers to cause a denial
of service (divide-by-zero and exception) via a crafted
wav format audio file. NOTE: the vendor disputes this
issue because Python applications 'need to be prepared
to handle a wide variety of
exceptions.'(CVE-2017-18207)
- Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6
through 3.6.10, 3.7 through 3.7.6, and 3.8 through
3.8.1 allows an HTTP server to conduct Regular
Expression Denial of Service (ReDoS) attacks against a
client because of
urllib.request.AbstractBasicAuthHandler catastrophic
backtracking.(CVE-2020-8492)
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-2020-1344
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?66265f32");
script_set_attribute(attribute:"solution", value:
"Update the affected python2 packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-8492");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-9674");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"patch_publication_date", value:"2020/04/02");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/02");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-unversioned-command");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python2-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python2-libs");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.6.0");
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) 2020-2024 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("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 != "3.0.6.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.6.0");
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 ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
flag = 0;
pkgs = ["python-unversioned-command-2.7.15-10.h21.eulerosv2r8",
"python2-2.7.15-10.h21.eulerosv2r8",
"python2-devel-2.7.15-10.h21.eulerosv2r8",
"python2-libs-2.7.15-10.h21.eulerosv2r8"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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, "python2");
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
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
AI Score
Confidence
High
EPSS
Percentile
85.9%