1.9 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:N/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.0005 Low
EPSS
Percentile
17.3%
The version of util-linux installed on the remote host is prior to 2.30.2-2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2022-1901 advisory.
Note that Nessus has not tested for this issue 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 2 Security Advisory ALAS-2022-1901.
##
include('compat.inc');
if (description)
{
script_id(168441);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/07");
script_cve_id("CVE-2022-0563");
script_name(english:"Amazon Linux 2 : util-linux (ALAS-2022-1901)");
script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The version of util-linux installed on the remote host is prior to 2.30.2-2. It is, therefore, affected by a
vulnerability as referenced in the ALAS2-2022-1901 advisory.
- A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The
Readline library uses an INPUTRC environment variable to get a path to the library config file. When the
library cannot parse the specified file, it prints an error message containing data from the file. This
flaw allows an unprivileged user to read root-owned files, potentially leading to privilege escalation.
This flaw affects util-linux versions prior to 2.37.4. (CVE-2022-0563)
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:"https://alas.aws.amazon.com/AL2/ALAS-2022-1901.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-0563.html");
script_set_attribute(attribute:"solution", value:
"Run 'yum update util-linux' to update your system.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-0563");
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:"2022/02/21");
script_set_attribute(attribute:"patch_publication_date", value:"2022/12/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/12/07");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libblkid");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libblkid-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libfdisk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libfdisk-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libmount");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libmount-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libsmartcols");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libsmartcols-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libuuid");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libuuid-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python-libmount");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux-user");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:uuidd");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
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) 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/AmazonLinux/release", "Host/AmazonLinux/rpm-list");
exit(0);
}
include("rpm.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 != "2")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var pkgs = [
{'reference':'libblkid-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-devel-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-devel-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-devel-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-devel-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-devel-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-devel-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-devel-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-devel-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-devel-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-devel-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-devel-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-devel-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-devel-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-devel-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-devel-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python-libmount-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python-libmount-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python-libmount-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-debuginfo-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-debuginfo-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-debuginfo-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-user-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-user-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-user-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'uuidd-2.30.2-2.amzn2.0.10', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'uuidd-2.30.2-2.amzn2.0.10', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
{'reference':'uuidd-2.30.2-2.amzn2.0.10', 'cpu':'x86_64', 'release':'AL2', '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_NOTE,
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, "libblkid / libblkid-devel / libfdisk / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
amazon | linux | libblkid | p-cpe:/a:amazon:linux:libblkid |
amazon | linux | libblkid-devel | p-cpe:/a:amazon:linux:libblkid-devel |
amazon | linux | libfdisk | p-cpe:/a:amazon:linux:libfdisk |
amazon | linux | libfdisk-devel | p-cpe:/a:amazon:linux:libfdisk-devel |
amazon | linux | libmount | p-cpe:/a:amazon:linux:libmount |
amazon | linux | libmount-devel | p-cpe:/a:amazon:linux:libmount-devel |
amazon | linux | libsmartcols | p-cpe:/a:amazon:linux:libsmartcols |
amazon | linux | libsmartcols-devel | p-cpe:/a:amazon:linux:libsmartcols-devel |
amazon | linux | libuuid | p-cpe:/a:amazon:linux:libuuid |
amazon | linux | libuuid-devel | p-cpe:/a:amazon:linux:libuuid-devel |
1.9 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:N/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.0005 Low
EPSS
Percentile
17.3%