4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%
According to the versions of the systemd packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :
It was discovered that a systemd service that uses DynamicUser property can create a SUID/SGID binary that would be allowed to run as the transient service UID/GID even after the service is terminated. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the UID/GID will be recycled.(CVE-2019-3843)
It was discovered that a systemd service that uses DynamicUser property can get new privileges through the execution of SUID binaries, which would allow to create binaries owned by the service transient group with the setgid bit set. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the GID will be recycled.(CVE-2019-3844)
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(131484);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/09");
script_cve_id("CVE-2019-3843", "CVE-2019-3844");
script_name(english:"EulerOS Virtualization for ARM 64 3.0.3.0 : systemd (EulerOS-SA-2019-2319)");
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 systemd packages installed, the
EulerOS Virtualization for ARM 64 installation on the remote host is
affected by the following vulnerabilities :
- It was discovered that a systemd service that uses
DynamicUser property can create a SUID/SGID binary that
would be allowed to run as the transient service
UID/GID even after the service is terminated. A local
attacker may use this flaw to access resources that
will be owned by a potentially different service in the
future, when the UID/GID will be
recycled.(CVE-2019-3843)
- It was discovered that a systemd service that uses
DynamicUser property can get new privileges through the
execution of SUID binaries, which would allow to create
binaries owned by the service transient group with the
setgid bit set. A local attacker may use this flaw to
access resources that will be owned by a potentially
different service in the future, when the GID will be
recycled.(CVE-2019-3844)
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-2019-2319
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3efa94e4");
script_set_attribute(attribute:"solution", value:
"Update the affected systemd packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2019-3844");
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:"2019/12/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/03");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-container");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-journal-remote");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-pam");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-udev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-udev-compat");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.3.0");
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) 2019-2024 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 != "3.0.3.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.3.0");
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 = ["systemd-239-3.h56.eulerosv2r8",
"systemd-container-239-3.h56.eulerosv2r8",
"systemd-devel-239-3.h56.eulerosv2r8",
"systemd-journal-remote-239-3.h56.eulerosv2r8",
"systemd-libs-239-3.h56.eulerosv2r8",
"systemd-pam-239-3.h56.eulerosv2r8",
"systemd-udev-239-3.h56.eulerosv2r8",
"systemd-udev-compat-239-3.h56.eulerosv2r8"];
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, "systemd");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | systemd | p-cpe:/a:huawei:euleros:systemd |
huawei | euleros | systemd-container | p-cpe:/a:huawei:euleros:systemd-container |
huawei | euleros | systemd-devel | p-cpe:/a:huawei:euleros:systemd-devel |
huawei | euleros | systemd-journal-remote | p-cpe:/a:huawei:euleros:systemd-journal-remote |
huawei | euleros | systemd-libs | p-cpe:/a:huawei:euleros:systemd-libs |
huawei | euleros | systemd-pam | p-cpe:/a:huawei:euleros:systemd-pam |
huawei | euleros | systemd-udev | p-cpe:/a:huawei:euleros:systemd-udev |
huawei | euleros | systemd-udev-compat | p-cpe:/a:huawei:euleros:systemd-udev-compat |
huawei | euleros | uvp | cpe:/o:huawei:euleros:uvp:3.0.3.0 |
4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%