EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2022-1630) - Nessus
High Plugin ID: 160581This page contains detailed information about the EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2022-1630) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.
Plugin Overview
ID: 160581
Name: EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2022-1630)
Filename: EulerOS_SA-2022-1630.nasl
Vulnerability Published: 2021-01-11
This Plugin Published: 2022-05-05
Last Modification Time: 2022-05-05
Plugin Version: 1.2
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/uvp_version, Host/local_checks_enabled
Vulnerability Information
Severity: High
Vulnerability Published: 2021-01-11
Patch Published: 2022-05-05
CVE [?]: CVE-2020-27820, CVE-2021-4155, CVE-2021-4159, CVE-2021-4197, CVE-2021-4203, CVE-2021-22543, CVE-2021-28711, CVE-2021-28712, CVE-2021-28713, CVE-2021-29265, CVE-2021-32078, CVE-2021-33098, CVE-2021-39685, CVE-2021-44733, CVE-2021-45485, CVE-2022-0322, CVE-2022-0330, CVE-2022-0435, CVE-2022-0487, CVE-2022-22942
CPE [?]: cpe:/o:huawei:euleros:uvp:2.9.0, 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 Virtualization host is missing multiple security updates.
Description
According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
- A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if 'unbind' the driver). (CVE-2020-27820)
- An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation. (CVE-2021-22543)
- Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'. Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)
- An issue was discovered in the Linux kernel before 5.11.7. usbip_sockfd_store in drivers/usb/usbip/stub_dev.c allows attackers to cause a denial of service (GPF) because the stub-up sequence has race conditions during an update of the local and shared status, aka CID-9380afd6df70. (CVE-2021-29265)
- An Out-of-Bounds Read was discovered in arch/arm/mach-footbridge/personal-pci.c in the Linux kernel through 5.12.11 because of the lack of a check for a value that shouldn't be negative, e.g., access to element -2 of an array, aka CID-298a58e165e4. (CVE-2021-32078)
- Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow an authenticated user to potentially enable denial of service via local access. (CVE-2021-33098)
- In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an incorrect flag check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210292376References: Upstream kernel (CVE-2021-39685)
- An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system. (CVE-2021-4197)
- A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)
- A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object. (CVE-2021-44733)
- In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses. (CVE-2021-45485)
- A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)
- A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system. (CVE-2022-0330)
- A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with malicious content where the number of domain member nodes is higher than the 64 allowed. This flaw allows a remote user to crash the system or possibly escalate their privileges if they have access to the TIPC network. (CVE-2022-0435)
- A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system Confidentiality. This flaw affects kernel versions prior to 5.14 rc1. (CVE-2022-0487)
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 Virtualization 2.9.0 : kernel (EulerOS-SA-2022-1630) vulnerability:
- GitHub: https://github.com/JamesGeeee/CVE-2021-22543
[CVE-2021-22543: PoC for exploiting CVE-2021-22543] - GitHub: https://github.com/szymonh/inspector-gadget
[CVE-2021-39685: CVE-2021-39685 Description and sample exploit for Linux USB Gadget overflow ...] - GitHub: https://github.com/szymonh/szymonh
[CVE-2021-39685] - GitHub: https://github.com/joydo/CVE-Writeups
[CVE-2021-44733] - GitHub: https://github.com/xairy/linux-kernel-exploitation
[CVE-2021-44733] - GitHub: https://github.com/Satheesh575555/linux-4.19.72_CVE-2021-45485
[CVE-2021-45485] - GitHub: https://github.com/bollwarm/SecToolSet
[CVE-2022-0435] - GitHub: https://github.com/si1ent-le/CVE-2022-0847
[CVE-2022-0487] - GitHub: https://github.com/pjlantz/optee-qemu
[CVE-2021-44733: Environment with vulnerable kernel for exploitiation of CVE-2021-44733]
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-2022-0435
CVSS V2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C/E:U/RL:OF/RC:C
| CVSS Base Score: | 9.0 (High) |
| Impact Subscore: | 10.0 |
| Exploitability Subscore: | 8.0 |
| CVSS Temporal Score: | 6.7 (Medium) |
| CVSS Environmental Score: | NA (None) |
| Modified Impact Subscore: | NA |
| Overall CVSS Score: | 6.7 (Medium) |
| CVSS Base Score: | 8.8 (High) |
| Impact Subscore: | 5.9 |
| Exploitability Subscore: | 2.8 |
| CVSS Temporal Score: | 7.7 (High) |
| CVSS Environmental Score: | NA (None) |
| Modified Impact Subscore: | NA |
| Overall CVSS Score: | 7.7 (High) |
Go back to menu.
Plugin Source
This is the EulerOS_SA-2022-1630.nasl nessus plugin source code. This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(160581);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/05");
script_cve_id(
"CVE-2020-27820",
"CVE-2021-4155",
"CVE-2021-4159",
"CVE-2021-4197",
"CVE-2021-4203",
"CVE-2021-22543",
"CVE-2021-28711",
"CVE-2021-28712",
"CVE-2021-28713",
"CVE-2021-29265",
"CVE-2021-32078",
"CVE-2021-33098",
"CVE-2021-39685",
"CVE-2021-44733",
"CVE-2021-45485",
"CVE-2022-0322",
"CVE-2022-0330",
"CVE-2022-0435",
"CVE-2022-0487",
"CVE-2022-22942"
);
script_name(english:"EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2022-1630)");
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 kernel packages installed, the EulerOS Virtualization installation on the remote host
is affected by the following vulnerabilities :
- A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could
happen if removing device (that is not common to remove video card physically without power-off, but same
happens if 'unbind' the driver). (CVE-2020-27820)
- An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass
RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users
with the ability to start and control a VM to read/write random pages of memory and can result in local
privilege escalation. (CVE-2021-22543)
- Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to
multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the
ability to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'.
Running PV backends in driver domains has one primary security advantage: if a driver domain gets
compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain
could try to attack other guests via sending events at a high frequency leading to a Denial of Service in
the guest due to trying to service interrupts for elongated amounts of time. There are three affected
backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch
3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)
- An issue was discovered in the Linux kernel before 5.11.7. usbip_sockfd_store in
drivers/usb/usbip/stub_dev.c allows attackers to cause a denial of service (GPF) because the stub-up
sequence has race conditions during an update of the local and shared status, aka CID-9380afd6df70.
(CVE-2021-29265)
- An Out-of-Bounds Read was discovered in arch/arm/mach-footbridge/personal-pci.c in the Linux kernel
through 5.12.11 because of the lack of a check for a value that shouldn't be negative, e.g., access to
element -2 of an array, aka CID-298a58e165e4. (CVE-2021-32078)
- Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow
an authenticated user to potentially enable denial of service via local access. (CVE-2021-33098)
- In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an
incorrect flag check. This could lead to local escalation of privilege with no additional execution
privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android
kernelAndroid ID: A-210292376References: Upstream kernel (CVE-2021-39685)
- An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces
subsystem was found in the way users have access to some less privileged process that are controlled by
cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of
control groups. A local user could use this flaw to crash the system or escalate their privileges on the
system. (CVE-2021-4197)
- A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and
SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a
user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)
- A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.
This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory
object. (CVE-2021-44733)
- In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information
leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based
attackers can typically choose among many IPv6 source addresses. (CVE-2021-45485)
- A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network
protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more
buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)
- A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the
way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or
escalate their privileges on the system. (CVE-2022-0330)
- A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends
a packet with malicious content where the number of domain member nodes is higher than the 64 allowed.
This flaw allows a remote user to crash the system or possibly escalate their privileges if they have
access to the TIPC network. (CVE-2022-0435)
- A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c
in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system
Confidentiality. This flaw affects kernel versions prior to 5.14 rc1. (CVE-2022-0487)
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-2022-1630
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1523867c");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel 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:U/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:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-0435");
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:"2021/01/11");
script_set_attribute(attribute:"patch_publication_date", value:"2022/05/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/05");
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:uvp:2.9.0");
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/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 != "2.9.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.9.0");
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 = [
"kernel-4.18.0-147.5.1.6.h686.eulerosv2r9",
"kernel-tools-4.18.0-147.5.1.6.h686.eulerosv2r9",
"kernel-tools-libs-4.18.0-147.5.1.6.h686.eulerosv2r9",
"python3-perf-4.18.0-147.5.1.6.h686.eulerosv2r9"
];
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, "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-2022-1630.nasl - Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\EulerOS_SA-2022-1630.nasl - Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/EulerOS_SA-2022-1630.nasl
Go back to menu.
How to Run
Here is how to run the EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2022-1630) 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 Virtualization 2.9.0 : kernel (EulerOS-SA-2022-1630) plugin ID 160581.
- 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-2022-1630.nasl -t <IP/HOST>Run the plugin with audit trail message on the console:
/opt/nessus/bin/nasl -a EulerOS_SA-2022-1630.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-2022-1630.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-2022-1630.nasl -t <IP/HOST>Go back to menu.
References
See also:
- https://www.tenable.com/plugins/nessus/160581
- http://www.nessus.org/u?1523867c
- https://vulners.com/nessus/EULEROS_SA-2022-1630.NASL
- 159983 - EulerOS 2.0 SP10 : kernel (EulerOS-SA-2022-1508)
- 160060 - SUSE SLES12 Security Update : kernel (Live Patch 23 for SLE 12 SP5) (SUSE-SU-2022:1278-1)
- 160118 - EulerOS 2.0 SP5 : kernel (EulerOS-SA-2022-1523)
- 160189 - Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2022-9314)
- 160190 - Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2022-9313)
- 160241 - RHEL 8 : kernel (RHSA-2022:1589)
- 160288 - RHEL 8 : kpatch-patch (RHSA-2022:1619)
- 160423 - Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-021)
- 160425 - Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-011)
- 160428 - Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-010)
- 160440 - Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-004)
- 160451 - Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-009)
- 160452 - Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-022)
- 160459 - Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-002)
- 160469 - Debian DSA-5127-1 : linux - security update
- 160495 - Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2022-9348)
- 160505 - OracleVM 3.4 : kernel-uek (OVMSA-2022-0014)
Version
This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file EulerOS_SA-2022-1630.nasl version 1.2. For more plugins, visit the Nessus Plugin Library.
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