According to the versions of the nss packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.(CVE-2018-18508)
In Network Security Services before 3.44, a malformed Netscape Certificate Sequence can cause NSS to crash, resulting in a denial of service.(CVE-2019-17007)
A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. This flaw affects NSS versions before 3.58.(CVE-2020-25648)
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(151417);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/08");
script_cve_id("CVE-2018-18508", "CVE-2019-17007", "CVE-2020-25648");
script_name(english:"EulerOS Virtualization 3.0.2.2 : nss (EulerOS-SA-2021-2150)");
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 nss packages installed, the EulerOS
Virtualization installation on the remote host is affected by the
following vulnerabilities :
- In Network Security Services (NSS) before 3.36.7 and
before 3.41.1, a malformed signature can cause a crash
due to a null dereference, resulting in a Denial of
Service.(CVE-2018-18508)
- In Network Security Services before 3.44, a malformed
Netscape Certificate Sequence can cause NSS to crash,
resulting in a denial of service.(CVE-2019-17007)
- A flaw was found in the way NSS handled CCS
(ChangeCipherSpec) messages in TLS 1.3. This flaw
allows a remote attacker to send multiple CCS messages,
causing a denial of service for servers compiled with
the NSS library. The highest threat from this
vulnerability is to system availability. This flaw
affects NSS versions before 3.58.(CVE-2020-25648)
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-2021-2150
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e073460f");
script_set_attribute(attribute:"solution", value:
"Update the affected nss 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:F/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:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-25648");
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:"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:nss");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nss-sysinit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nss-tools");
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 = ["nss-3.36.0-8.h7.eulerosv2r7",
"nss-sysinit-3.36.0-8.h7.eulerosv2r7",
"nss-tools-3.36.0-8.h7.eulerosv2r7"];
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, "nss");
}