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nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.AL2023_ALAS2023-2023-299.NASL
HistoryAug 24, 2023 - 12:00 a.m.

Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-299)

2023-08-2400:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
21
linux kernel
amazon linux
alas2023-2023-299
ntfs3 subsystem
out-of-bounds write
local privilege escalation
use-after-free vulnerability
netfilter connection tracking
conntrack
remote code execution
denial of service

CVSS3

8.8

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

AI Score

8.2

Confidence

High

EPSS

0.003

Percentile

69.2%

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-299 advisory.

2024-07-03: CVE-2023-51043 was added to this advisory.

2024-02-01: CVE-2024-0639 was added to this advisory.

2024-01-03: CVE-2023-39197 was added to this advisory.

2023-10-12: CVE-2023-44466 was added to this advisory.

2023-10-10: CVE-2022-48502 was added to this advisory.

An issue was discovered in the Linux kernel before 6.2. The ntfs3 subsystem does not properly check for     correctness during disk reads, leading to an out-of-bounds read in ntfs_set_ea in fs/ntfs3/xattr.c.
(CVE-2022-48502)

An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited     to achieve local privilege escalation.

The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated     according to packet sizes without bounds checks.

We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64. (CVE-2023-3611)

A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to     achieve local privilege escalation.

If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or     decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter     and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.

We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f. (CVE-2023-3776)

An out-of-bounds read vulnerability was found in Netfilter Connection Tracking (conntrack) in the Linux     kernel. This flaw allows a remote user to disclose sensitive information via the DCCP protocol.
(CVE-2023-39197)

An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer     signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH     frames. This occurs because of an untrusted length taken from a TCP packet in ceph_decode_32.
(CVE-2023-44466)

In the Linux kernel before 6.4.5, drivers/gpu/drm/drm_atomic.c has a use-after-free during a race     condition between a nonblocking atomic commit and a driver unload. (CVE-2023-51043)

A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in     net/sctp/socket.c in the Linux kernel's SCTP subsystem. This flaw allows guests with local user privileges     to trigger a deadlock and potentially crash the system. (CVE-2024-0639)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2023 Security Advisory ALAS2023-2023-299.
##

include('compat.inc');

if (description)
{
  script_id(180130);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/05");

  script_cve_id(
    "CVE-2022-48502",
    "CVE-2023-3611",
    "CVE-2023-3776",
    "CVE-2023-39197",
    "CVE-2023-44466",
    "CVE-2023-51043",
    "CVE-2024-0639"
  );

  script_name(english:"Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-299)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2023 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-299 advisory.

    2024-07-03: CVE-2023-51043 was added to this advisory.

    2024-02-01: CVE-2024-0639 was added to this advisory.

    2024-01-03: CVE-2023-39197 was added to this advisory.

    2023-10-12: CVE-2023-44466 was added to this advisory.

    2023-10-10: CVE-2022-48502 was added to this advisory.

    An issue was discovered in the Linux kernel before 6.2. The ntfs3 subsystem does not properly check for
    correctness during disk reads, leading to an out-of-bounds read in ntfs_set_ea in fs/ntfs3/xattr.c.
    (CVE-2022-48502)

    An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited
    to achieve local privilege escalation.

    The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated
    according to packet sizes without bounds checks.

    We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64. (CVE-2023-3611)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to
    achieve local privilege escalation.

    If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or
    decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter
    and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.

    We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f. (CVE-2023-3776)

    An out-of-bounds read vulnerability was found in Netfilter Connection Tracking (conntrack) in the Linux
    kernel. This flaw allows a remote user to disclose sensitive information via the DCCP protocol.
    (CVE-2023-39197)

    An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer
    signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH
    frames. This occurs because of an untrusted length taken from a TCP packet in ceph_decode_32.
    (CVE-2023-44466)

    In the Linux kernel before 6.4.5, drivers/gpu/drm/drm_atomic.c has a use-after-free during a race
    condition between a nonblocking atomic commit and a driver unload. (CVE-2023-51043)

    A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in
    net/sctp/socket.c in the Linux kernel's SCTP subsystem. This flaw allows guests with local user privileges
    to trigger a deadlock and potentially crash the system. (CVE-2024-0639)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/AL2023/ALAS-2023-299.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-48502.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-3611.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-3776.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-39197.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-44466.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-51043.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-0639.html");
  script_set_attribute(attribute:"solution", value:
"Run 'dnf update kernel --releasever 2023.1.20230823' to update your system.");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-44466");

  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:"2023/07/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/08/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:bpftool-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-libbpf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-libbpf-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-libbpf-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-livepatch-6.1.41-63.109");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-tools-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2023");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "kpatch.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}

include("rpm.inc");
include("hotfixes.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "-2023")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2023", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

if (get_one_kb_item("Host/kpatch/kernel-cves"))
{
  set_hotfix_type("kpatch");
  var cve_list = make_list("CVE-2022-48502", "CVE-2023-3611", "CVE-2023-3776", "CVE-2023-39197", "CVE-2023-44466", "CVE-2023-51043", "CVE-2024-0639");
  if (hotfix_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "kpatch hotfix for ALAS2023-2023-299");
  }
  else
  {
    __rpm_report = hotfix_reporting_text();
  }
}
var pkgs = [
    {'reference':'bpftool-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'bpftool-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'bpftool-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'bpftool-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-debuginfo-common-aarch64-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-debuginfo-common-x86_64-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-devel-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-devel-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-headers-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-headers-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-libbpf-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-libbpf-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-libbpf-devel-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-libbpf-devel-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-libbpf-static-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-libbpf-static-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-livepatch-6.1.41-63.109-1.0-0.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-livepatch-6.1.41-63.109-1.0-0.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-devel-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-devel-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'perf-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'perf-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'perf-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'perf-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3-perf-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3-perf-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3-perf-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python3-perf-debuginfo-6.1.41-63.109.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) 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, "bpftool / bpftool-debuginfo / kernel / etc");
}
VendorProductVersionCPE
amazonlinuxperf-debuginfop-cpe:/a:amazon:linux:perf-debuginfo
amazonlinuxkernel-debuginfo-common-aarch64p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64
amazonlinuxkernel-toolsp-cpe:/a:amazon:linux:kernel-tools
amazonlinuxpython3-perfp-cpe:/a:amazon:linux:python3-perf
amazonlinuxkernel-libbpf-staticp-cpe:/a:amazon:linux:kernel-libbpf-static
amazonlinuxkernel-debuginfop-cpe:/a:amazon:linux:kernel-debuginfo
amazonlinuxkernel-libbpfp-cpe:/a:amazon:linux:kernel-libbpf
amazonlinuxbpftool-debuginfop-cpe:/a:amazon:linux:bpftool-debuginfo
amazonlinuxkernel-libbpf-develp-cpe:/a:amazon:linux:kernel-libbpf-devel
amazonlinuxkernel-headersp-cpe:/a:amazon:linux:kernel-headers
Rows per page:
1-10 of 201

CVSS3

8.8

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

AI Score

8.2

Confidence

High

EPSS

0.003

Percentile

69.2%