9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.18 Low
EPSS
Percentile
96.2%
According to the versions of the samba packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to allow a directory to be created in an area of the server file system not exported under the share definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack to succeed. (CVE-2021-43566)
The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide ‘…enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver.’ Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root. (CVE-2021-44142)
Potential security vulnerabilities have been identified in HPE SimpliVity Omnistack for Hyper-V. The vulnerabilities could be remotely exploited to allow code execution, information leak and impersonate arbitrary services. (CVE-2022-0336)
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.
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(163189);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/02/03");
script_cve_id("CVE-2021-43566", "CVE-2021-44142", "CVE-2022-0336");
script_xref(name:"IAVA", value:"2022-A-0020-S");
script_xref(name:"IAVA", value:"2022-A-0054-S");
script_name(english:"EulerOS Virtualization 2.10.0 : samba (EulerOS-SA-2022-2038)");
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 samba packages installed, the EulerOS Virtualization installation on the remote host is
affected by the following vulnerabilities :
- All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to
allow a directory to be created in an area of the server file system not exported under the share
definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack
to succeed. (CVE-2021-43566)
- The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide '...enhanced compatibility
with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver.' Samba versions prior to
4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via
specially crafted extended file attributes. A remote attacker with write access to extended file
attributes can execute arbitrary code with the privileges of smbd, typically root. (CVE-2021-44142)
- Potential security vulnerabilities have been identified in HPE SimpliVity Omnistack for Hyper-V. The
vulnerabilities could be remotely exploited to allow code execution, information leak and impersonate
arbitrary services. (CVE-2022-0336)
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-2022-2038
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?40fca7c7");
script_set_attribute(attribute:"solution", value:
"Update the affected samba packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-44142");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-0336");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/01/10");
script_set_attribute(attribute:"patch_publication_date", value:"2022/07/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/07/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:samba");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:samba-client");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:samba-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:samba-common-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:samba-libs");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.10.0");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022-2023 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("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.10.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.10.0");
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var 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);
var flag = 0;
var pkgs = [
"samba-4.11.12-3.h11.eulerosv2r10",
"samba-client-4.11.12-3.h11.eulerosv2r10",
"samba-common-4.11.12-3.h11.eulerosv2r10",
"samba-common-tools-4.11.12-3.h11.eulerosv2r10",
"samba-libs-4.11.12-3.h11.eulerosv2r10"
];
foreach (var 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
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "samba");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | samba | p-cpe:/a:huawei:euleros:samba |
huawei | euleros | samba-client | p-cpe:/a:huawei:euleros:samba-client |
huawei | euleros | samba-common | p-cpe:/a:huawei:euleros:samba-common |
huawei | euleros | samba-common-tools | p-cpe:/a:huawei:euleros:samba-common-tools |
huawei | euleros | samba-libs | p-cpe:/a:huawei:euleros:samba-libs |
huawei | euleros | uvp | cpe:/o:huawei:euleros:uvp:2.10.0 |
9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.18 Low
EPSS
Percentile
96.2%