EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1010) - Nessus

High Plugin ID: 157208

This page contains detailed information about the EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1010) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 157208
Name: EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1010)
Filename: EulerOS_SA-2022-1010.nasl
Vulnerability Published: 2021-08-08
This Plugin Published: 2022-01-28
Last Modification Time: 2022-03-01
Plugin Version: 1.3
Plugin Type: local
Plugin Family: Huawei Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp, Host/local_checks_enabled
Excluded KB Items: Host/EulerOS/uvp_version

Vulnerability Information

Severity: High
Vulnerability Published: 2021-08-08
Patch Published: 2022-01-28
CVE [?]: CVE-2021-3669, CVE-2021-3744, CVE-2021-3752, CVE-2021-3759, CVE-2021-3764, CVE-2021-20322, CVE-2021-38209, CVE-2021-38300, CVE-2021-42739, CVE-2021-43389, CVE-2021-43975
CPE [?]: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:kernel, p-cpe:/a:huawei:euleros:kernel-tools, p-cpe:/a:huawei:euleros:kernel-tools-libs, p-cpe:/a:huawei:euleros:python3-perf

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- net/netfilter/nf_conntrack_standalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because these changes are leaked into all other net namespaces. This is related to the NF_SYSCTL_CT_MAX, NF_SYSCTL_CT_EXPECT_MAX, and NF_SYSCTL_CT_BUCKETS sysctls. (CVE-2021-38209)

- arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture. (CVE-2021-38300)

- The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking. (CVE-2021-42739)

- An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. (CVE-2021-43389)

- In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (CVE-2021-43975)

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.

Solution

Update the affected kernel packages.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (GitHub)
Exploit Ease: Exploits (PoCs) are available

Here's the list of publicly known exploits and PoCs for verifying the EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1010) vulnerability:

GitHub: https://github.com/JaskaranNarula/Host_Errata_Info
[CVE-2021-42739]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS Score Source [?]: CVE-2021-3752
CVSS V2 Vector: AV:A/AC:M/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C

CVSS Base Score:	7.9 (High)
Impact Subscore:	10.0
Exploitability Subscore:	5.5
CVSS Temporal Score:	5.8 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	5.8 (Medium)

CVSS V3 Vector: CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS Base Score:	7.1 (High)
Impact Subscore:	5.9
Exploitability Subscore:	1.2
CVSS Temporal Score:	6.2 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.2 (Medium)

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Plugin Source

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(157208);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/03/01");

  script_cve_id(
    "CVE-2021-3669",
    "CVE-2021-3744",
    "CVE-2021-3752",
    "CVE-2021-3759",
    "CVE-2021-3764",
    "CVE-2021-20322",
    "CVE-2021-38209",
    "CVE-2021-38300",
    "CVE-2021-42739",
    "CVE-2021-43389",
    "CVE-2021-43975"
  );

  script_name(english:"EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1010)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by
the following vulnerabilities :

  - net/netfilter/nf_conntrack_standalone.c in the Linux kernel before 5.12.2 allows observation of changes in
    any net namespace because these changes are leaked into all other net namespaces. This is related to the
    NF_SYSCTL_CT_MAX, NF_SYSCTL_CT_EXPECT_MAX, and NF_SYSCTL_CT_BUCKETS sysctls. (CVE-2021-38209)

  - arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when
    transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context.
    This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.
    (CVE-2021-38300)

  - The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to
    drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt
    mishandles bounds checking. (CVE-2021-42739)

  - An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in
    the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. (CVE-2021-43389)

  - In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in
    drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a
    crafted device) to trigger an out-of-bounds write via a crafted length value. (CVE-2021-43975)

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-2022-1010
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?604a028f");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel packages.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-3752");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/08/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/01/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/01/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-perf");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2022 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/sp");
  script_exclude_keys("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);

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 (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP9");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(9)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP9");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP9", "EulerOS UVP " + uvp);

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 ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "kernel-4.19.90-vhulk2103.1.0.h610.eulerosv2r9",
  "kernel-tools-4.19.90-vhulk2103.1.0.h610.eulerosv2r9",
  "kernel-tools-libs-4.19.90-vhulk2103.1.0.h610.eulerosv2r9",
  "python3-perf-4.19.90-vhulk2103.1.0.h610.eulerosv2r9"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"9", 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, "kernel");
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/EulerOS_SA-2022-1010.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\EulerOS_SA-2022-1010.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/EulerOS_SA-2022-1010.nasl

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How to Run

Here is how to run the EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1010) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Huawei Local Security Checks plugin family.
On the right side table select EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1010) plugin ID 157208.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl EulerOS_SA-2022-1010.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a EulerOS_SA-2022-1010.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - EulerOS_SA-2022-1010.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state EulerOS_SA-2022-1010.nasl -t <IP/HOST>

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References

See also:

Similar and related Nessus plugins:

156482 - Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5207-1)
156486 - Ubuntu 20.04 LTS / 21.04 / 21.10 : Linux kernel vulnerabilities (USN-5208-1)
156613 - Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5218-1)
156632 - RHEL 7 : kernel-rt (RHSA-2022:0065)
156646 - SUSE SLES15 Security Update : kernel (SUSE-SU-2022:0056-1)
156648 - openSUSE 15 Security Update : kernel (openSUSE-SU-2022:0056-1)
156664 - Oracle Linux 7 : kernel (ELSA-2022-0063)
156726 - RHEL 7 : kernel (RHSA-2022:0063)
156748 - SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2022:0068-1)
156757 - Scientific Linux Security Update : kernel on SL7.x x86_64 (2022:0063)
156759 - SUSE SLES12 Security Update : kernel (SUSE-SU-2022:0080-1)
156760 - SUSE SLES15 Security Update : kernel (SUSE-SU-2022:0079-1)
156777 - SUSE SLES12 Security Update : kernel (SUSE-SU-2022:0090-1)
156820 - CentOS 7 : kernel (CESA-2022:0063)
156883 - SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2022:0131-1)
156904 - openSUSE 15 Security Update : kernel (openSUSE-SU-2022:0131-1)
157144 - SUSE SLES15 Security Update : kernel (SUSE-SU-2022:0197-1)
157213 - EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1030)
157271 - SUSE SLES15 Security Update : kernel (Live Patch 20 for SLE 15 SP2) (SUSE-SU-2022:0238-1)
157276 - SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 20 for SLE 12 SP5) (SUSE-SU-2022:0246-1)
157278 - SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 16 for SLE 12 SP5) (SUSE-SU-2022:0234-1)
157279 - SUSE SLES12 Security Update : kernel (Live Patch 24 for SLE 12 SP5) (SUSE-SU-2022:0242-1)
157280 - SUSE SLES15 Security Update : kernel (Live Patch 23 for SLE 15) (SUSE-SU-2022:0243-1)
157282 - SUSE SLES15 Security Update : kernel (Live Patch 18 for SLE 15 SP2) (SUSE-SU-2022:0241-1)
157283 - SUSE SLES15 Security Update : kernel (Live Patch 24 for SLE 15) (SUSE-SU-2022:0237-1)
157284 - Slackware Linux 14.2 kernel-generic Multiple Vulnerabilities (SSA:2022-031-01)
157291 - Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2022-9088)
157298 - SUSE SLES15 Security Update : kernel (Live Patch 4 for SLE 15 SP3) (SUSE-SU-2022:0257-1)
157301 - SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15) (SUSE-SU-2022:0255-1)
157302 - SUSE SLES15 Security Update : kernel (Live Patch 6 for SLE 15 SP3) (SUSE-SU-2022:0270-1)
157306 - SUSE SLES15 Security Update : kernel (Live Patch 15 for SLE 15 SP2) (SUSE-SU-2022:0254-1)
157308 - SUSE SLES15 Security Update : kernel (Live Patch 22 for SLE 15 SP1) (SUSE-SU-2022:0263-1)
157310 - SUSE SLES12 Security Update : kernel (Live Patch 17 for SLE 12 SP5) (SUSE-SU-2022:0267-1)
157334 - SUSE SLES12 Security Update : kernel (Live Patch 20 for SLE 12 SP4) (SUSE-SU-2022:0298-1)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file EulerOS_SA-2022-1010.nasl version 1.3. For more plugins, visit the Nessus Plugin Library.

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EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1010) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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