NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel Multiple Vulnerabilities (NS-SA-2021-0169)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2021-0169. The text
# itself is copyright (C) ZTE, Inc.
##

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

if (description)
{
  script_id(154525);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/27");

  script_cve_id(
    "CVE-2017-18551",
    "CVE-2019-9454",
    "CVE-2019-9458",
    "CVE-2019-15917",
    "CVE-2019-17055",
    "CVE-2019-18808",
    "CVE-2019-19046",
    "CVE-2019-19055",
    "CVE-2019-19332",
    "CVE-2019-19523",
    "CVE-2019-19524",
    "CVE-2019-19530",
    "CVE-2019-19534",
    "CVE-2019-19537",
    "CVE-2019-19807",
    "CVE-2019-20636",
    "CVE-2020-2732",
    "CVE-2020-8647",
    "CVE-2020-8649",
    "CVE-2020-9383",
    "CVE-2020-10732",
    "CVE-2020-10742",
    "CVE-2020-10751",
    "CVE-2020-11565",
    "CVE-2020-12770",
    "CVE-2020-14305",
    "CVE-2020-25212",
    "CVE-2020-25284"
  );

  script_name(english:"NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel Multiple Vulnerabilities (NS-SA-2021-0169)");

  script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has kernel packages installed that are affected by
multiple vulnerabilities:

  - An issue was discovered in drivers/i2c/i2c-core-smbus.c in the Linux kernel before 4.14.15. There is an
    out of bounds write in the function i2c_smbus_xfer_emulated. (CVE-2017-18551)

  - An issue was discovered in the Linux kernel before 5.0.5. There is a use-after-free issue when
    hci_uart_register_dev() fails in hci_uart_set_proto() in drivers/bluetooth/hci_ldisc.c. (CVE-2019-15917)

  - base_sock_create in drivers/isdn/mISDN/socket.c in the AF_ISDN network module in the Linux kernel through
    5.3.2 does not enforce CAP_NET_RAW, which means that unprivileged users can create a raw socket, aka
    CID-b91ee4aa2a21. (CVE-2019-17055)

  - A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel
    through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
    (CVE-2019-18808)

  - ** DISPUTED ** A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c
    in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by
    triggering ida_simple_get() failure, aka CID-4aa7afb0ee20. NOTE: third parties dispute the relevance of
    this because an attacker cannot realistically control this failure at probe time. (CVE-2019-19046)

  - ** DISPUTED ** A memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c
    in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by
    triggering nl80211hdr_put() failures, aka CID-1399c59fa929. NOTE: third parties dispute the relevance of
    this because it occurs on a code path where a successful allocation has already occurred. (CVE-2019-19055)

  - An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way
    the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID
    features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use
    this flaw to crash the system, resulting in a denial of service. (CVE-2019-19332)

  - In the Linux kernel before 5.3.7, there is a use-after-free bug that can be caused by a malicious USB
    device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79. (CVE-2019-19523)

  - In the Linux kernel before 5.3.12, there is a use-after-free bug that can be caused by a malicious USB
    device in the drivers/input/ff-memless.c driver, aka CID-fa3a5a1880c9. (CVE-2019-19524)

  - In the Linux kernel before 5.2.10, there is a use-after-free bug that can be caused by a malicious USB
    device in the drivers/usb/class/cdc-acm.c driver, aka CID-c52873e5a1ef. (CVE-2019-19530)

  - In the Linux kernel before 5.3.11, there is an info-leak bug that can be caused by a malicious USB device
    in the drivers/net/can/usb/peak_usb/pcan_usb_core.c driver, aka CID-f7a1337f0d29. (CVE-2019-19534)

  - In the Linux kernel before 5.2.10, there is a race condition bug that can be caused by a malicious USB
    device in the USB character device driver layer, aka CID-303911cfc5b9. This affects
    drivers/usb/core/file.c. (CVE-2019-19537)

  - In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code
    refactoring, aka CID-e7af6307a8a5. This is related to snd_timer_open and snd_timer_close_locked. The
    timeri variable was originally intended to be for a newly created timer instance, but was used for a
    different purpose after refactoring. (CVE-2019-19807)

  - In the Linux kernel before 5.4.12, drivers/input/input.c has out-of-bounds writes via a crafted keycode
    table, as demonstrated by input_set_keycode, aka CID-cb222aed03d7. (CVE-2019-20636)

  - In the Android kernel in i2c driver there is a possible out of bounds write due to memory corruption. This
    could lead to local escalation of privilege with System execution privileges needed. User interaction is
    not needed for exploitation. (CVE-2019-9454)

  - In the Android kernel in the video driver there is a use after free due to a race condition. This could
    lead to local escalation of privilege with no additional execution privileges needed. User interaction is
    not needed for exploitation. (CVE-2019-9458)

  - A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an
    attacker with a local account to crash a trivial program and exfiltrate private kernel data.
    (CVE-2020-10732)

  - A flaw was found in the Linux kernel. An index buffer overflow during Direct IO write leading to the NFS
    client to crash. In some cases, a reach out of the index after one memory allocation by kmalloc will cause
    a kernel panic. The highest threat from this vulnerability is to data confidentiality and system
    availability. (CVE-2020-10742)

  - A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it
    incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly
    only validate the first netlink message in the skb and allow or deny the rest of the messages within the
    skb with the granted permission without further processing. (CVE-2020-10751)

  - ** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c
    has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing,
    aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability
    because the issue is a bug in parsing mount options which can only be specified by a privileged user, so
    triggering the bug does not grant any powers not already held.. (CVE-2020-11565)

  - An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a
    certain failure case, aka CID-83c6f2390040. (CVE-2020-12770)

  - An out-of-bounds memory write flaw was found in how the Linux kernel's Voice Over IP H.323 connection
    tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote
    user to crash the system, causing a denial of service. The highest threat from this vulnerability is to
    confidentiality, integrity, as well as system availability. (CVE-2020-14305)

  - A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers
    to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c
    instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452. (CVE-2020-25212)

  - The rbd block device driver in drivers/block/rbd.c in the Linux kernel through 5.8.9 used incomplete
    permission checking for access to rbd devices, which could be leveraged by local attackers to map or unmap
    rbd block devices, aka CID-f44d04e696fe. (CVE-2020-25284)

  - A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest
    when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into
    accessing sensitive L1 resources that should be inaccessible to the L2 guest. (CVE-2020-2732)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vc_do_resize function in
    drivers/tty/vt/vt.c. (CVE-2020-8647)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region
    function in drivers/video/console/vgacon.c. (CVE-2020-8649)

  - An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drivers/block/floppy.c leads to
    a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it,
    aka CID-2e90ca68b0d2. (CVE-2020-9383)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/notice/NS-SA-2021-0169");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2017-18551");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-15917");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-17055");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-18808");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19046");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19055");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19332");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19523");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19524");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19530");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19534");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19537");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19807");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-20636");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-9454");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-9458");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-10732");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-10742");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-10751");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-11565");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-12770");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-14305");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-25212");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-25284");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-2732");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-8647");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-8649");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-9383");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL kernel packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/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-2020-14305");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-debug-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-debug-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:python-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python-perf");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_core:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:5");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"NewStart CGSL 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/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  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/ZTE-CGSL/release');
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');

if (release !~ "CGSL CORE 5.05" &&
    release !~ "CGSL MAIN 5.05")
  audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.05 / NewStart CGSL MAIN 5.05');

if (!get_kb_item('Host/ZTE-CGSL/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'NewStart Carrier Grade Server Linux', cpu);

var flag = 0;

var pkgs = {
  'CGSL CORE 5.05': [
    'bpftool-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-core-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-debug-core-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-debug-devel-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-debug-modules-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-devel-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-headers-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-modules-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-tools-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-tools-libs-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'kernel-tools-libs-devel-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'perf-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite',
    'python-perf-3.10.0-957.27.2.el7.cgslv5_5.19.275.ge2a4ecc.lite'
  ],
  'CGSL MAIN 5.05': [
    'bpftool-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'kernel-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'kernel-debug-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'kernel-debug-devel-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'kernel-devel-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'kernel-headers-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'kernel-tools-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'kernel-tools-libs-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'kernel-tools-libs-devel-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'perf-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e',
    'python-perf-3.10.0-957.27.2.el7.cgslv5_5.20.312.gc682c7e'
  ]
};
var pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:'ZTE ' + release, 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');
}