6.2 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
60.0%
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1611 advisory.
The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups.
In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.
Security Fix(es):
* systemd: Spoofing of XDG_SEAT allows for actions to be checked against allow_active instead of allow_any (CVE-2019-3842)
* systemd: Mishandles numerical usernames beginning with decimal digits or 0x followed by hexadecimal digits (CVE-2020-13776)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 70300
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2021:1611. The text
# itself is copyright (C) Red Hat, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(149692);
script_version("1.11");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");
script_cve_id("CVE-2019-3842", "CVE-2020-13776");
script_xref(name:"RHSA", value:"2021:1611");
script_name(english:"RHEL 8 : systemd (RHSA-2021:1611)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2021:1611 advisory.
The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and
LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for
starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups.
In addition, it supports snapshotting and restoring of the system state, maintains mount and automount
points, and implements an elaborate transactional dependency-based service control logic. It can also work
as a drop-in replacement for sysvinit.
Security Fix(es):
* systemd: Spoofing of XDG_SEAT allows for actions to be checked against allow_active instead of
allow_any (CVE-2019-3842)
* systemd: Mishandles numerical usernames beginning with decimal digits or 0x followed by hexadecimal
digits (CVE-2020-13776)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes
linked from the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
# https://access.redhat.com/security/data/csaf/v2/advisories/2021/rhsa-2021_1611.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?22d18dab");
# https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?862005a9");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2021:1611");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1668521");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1740657");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1755287");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1764282");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1812972");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1819868");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1845534");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1862714");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1865840");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1868831");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1868877");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1870638");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1871139");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1880270");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1885553");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1887181");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1888912");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1889996");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/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:L/AC:H/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-2020-13776");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-3842");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(440, 863);
script_set_attribute(attribute:"vendor_severity", value:"Moderate");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/09");
script_set_attribute(attribute:"patch_publication_date", value:"2021/05/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/05/19");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:systemd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:systemd-container");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:systemd-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:systemd-journal-remote");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:systemd-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:systemd-pam");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:systemd-tests");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:systemd-udev");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
include('rhel.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', 'Red Hat ' + os_ver);
if (!get_kb_item('Host/RedHat/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$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);
var constraints = [
{
'repo_relative_urls': [
'content/dist/rhel8/8.10/aarch64/baseos/debug',
'content/dist/rhel8/8.10/aarch64/baseos/os',
'content/dist/rhel8/8.10/aarch64/baseos/source/SRPMS',
'content/dist/rhel8/8.10/ppc64le/baseos/debug',
'content/dist/rhel8/8.10/ppc64le/baseos/os',
'content/dist/rhel8/8.10/ppc64le/baseos/source/SRPMS',
'content/dist/rhel8/8.10/s390x/baseos/debug',
'content/dist/rhel8/8.10/s390x/baseos/os',
'content/dist/rhel8/8.10/s390x/baseos/source/SRPMS',
'content/dist/rhel8/8.10/x86_64/baseos/debug',
'content/dist/rhel8/8.10/x86_64/baseos/os',
'content/dist/rhel8/8.10/x86_64/baseos/source/SRPMS',
'content/dist/rhel8/8.6/aarch64/baseos/debug',
'content/dist/rhel8/8.6/aarch64/baseos/os',
'content/dist/rhel8/8.6/aarch64/baseos/source/SRPMS',
'content/dist/rhel8/8.6/ppc64le/baseos/debug',
'content/dist/rhel8/8.6/ppc64le/baseos/os',
'content/dist/rhel8/8.6/ppc64le/baseos/source/SRPMS',
'content/dist/rhel8/8.6/s390x/baseos/debug',
'content/dist/rhel8/8.6/s390x/baseos/os',
'content/dist/rhel8/8.6/s390x/baseos/source/SRPMS',
'content/dist/rhel8/8.6/x86_64/baseos/debug',
'content/dist/rhel8/8.6/x86_64/baseos/os',
'content/dist/rhel8/8.6/x86_64/baseos/source/SRPMS',
'content/dist/rhel8/8.8/aarch64/baseos/debug',
'content/dist/rhel8/8.8/aarch64/baseos/os',
'content/dist/rhel8/8.8/aarch64/baseos/source/SRPMS',
'content/dist/rhel8/8.8/ppc64le/baseos/debug',
'content/dist/rhel8/8.8/ppc64le/baseos/os',
'content/dist/rhel8/8.8/ppc64le/baseos/source/SRPMS',
'content/dist/rhel8/8.8/s390x/baseos/debug',
'content/dist/rhel8/8.8/s390x/baseos/os',
'content/dist/rhel8/8.8/s390x/baseos/source/SRPMS',
'content/dist/rhel8/8.8/x86_64/baseos/debug',
'content/dist/rhel8/8.8/x86_64/baseos/os',
'content/dist/rhel8/8.8/x86_64/baseos/source/SRPMS',
'content/dist/rhel8/8.9/aarch64/baseos/debug',
'content/dist/rhel8/8.9/aarch64/baseos/os',
'content/dist/rhel8/8.9/aarch64/baseos/source/SRPMS',
'content/dist/rhel8/8.9/ppc64le/baseos/debug',
'content/dist/rhel8/8.9/ppc64le/baseos/os',
'content/dist/rhel8/8.9/ppc64le/baseos/source/SRPMS',
'content/dist/rhel8/8.9/s390x/baseos/debug',
'content/dist/rhel8/8.9/s390x/baseos/os',
'content/dist/rhel8/8.9/s390x/baseos/source/SRPMS',
'content/dist/rhel8/8.9/x86_64/baseos/debug',
'content/dist/rhel8/8.9/x86_64/baseos/os',
'content/dist/rhel8/8.9/x86_64/baseos/source/SRPMS',
'content/dist/rhel8/8/aarch64/baseos/debug',
'content/dist/rhel8/8/aarch64/baseos/os',
'content/dist/rhel8/8/aarch64/baseos/source/SRPMS',
'content/dist/rhel8/8/ppc64le/baseos/debug',
'content/dist/rhel8/8/ppc64le/baseos/os',
'content/dist/rhel8/8/ppc64le/baseos/source/SRPMS',
'content/dist/rhel8/8/s390x/baseos/debug',
'content/dist/rhel8/8/s390x/baseos/os',
'content/dist/rhel8/8/s390x/baseos/source/SRPMS',
'content/dist/rhel8/8/x86_64/baseos/debug',
'content/dist/rhel8/8/x86_64/baseos/os',
'content/dist/rhel8/8/x86_64/baseos/source/SRPMS'
],
'pkgs': [
{'reference':'systemd-239-45.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'systemd-container-239-45.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'systemd-devel-239-45.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'systemd-journal-remote-239-45.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'systemd-libs-239-45.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'systemd-pam-239-45.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'systemd-tests-239-45.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'systemd-udev-239-45.el8', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
]
}
];
var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);
var flag = 0;
foreach var constraint_array ( constraints ) {
var repo_relative_urls = NULL;
if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
foreach var pkg ( constraint_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;
var cves = NULL;
if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
if (reference &&
_release &&
rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
(applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
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, cves:cves)) flag++;
}
}
if (flag)
{
var extra = NULL;
if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
else extra = rpm_report_get();
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'systemd / systemd-container / systemd-devel / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | systemd-journal-remote | p-cpe:/a:redhat:enterprise_linux:systemd-journal-remote |
redhat | enterprise_linux | systemd-pam | p-cpe:/a:redhat:enterprise_linux:systemd-pam |
redhat | enterprise_linux | systemd | p-cpe:/a:redhat:enterprise_linux:systemd |
redhat | enterprise_linux | systemd-container | p-cpe:/a:redhat:enterprise_linux:systemd-container |
redhat | enterprise_linux | systemd-libs | p-cpe:/a:redhat:enterprise_linux:systemd-libs |
redhat | enterprise_linux | systemd-udev | p-cpe:/a:redhat:enterprise_linux:systemd-udev |
redhat | enterprise_linux | 8 | cpe:/o:redhat:enterprise_linux:8 |
redhat | enterprise_linux | systemd-devel | p-cpe:/a:redhat:enterprise_linux:systemd-devel |
redhat | enterprise_linux | systemd-tests | p-cpe:/a:redhat:enterprise_linux:systemd-tests |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3842
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13776
www.nessus.org/u?22d18dab
www.nessus.org/u?862005a9
access.redhat.com/errata/RHSA-2021:1611
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1668521
bugzilla.redhat.com/show_bug.cgi?id=1740657
bugzilla.redhat.com/show_bug.cgi?id=1755287
bugzilla.redhat.com/show_bug.cgi?id=1764282
bugzilla.redhat.com/show_bug.cgi?id=1812972
bugzilla.redhat.com/show_bug.cgi?id=1819868
bugzilla.redhat.com/show_bug.cgi?id=1845534
bugzilla.redhat.com/show_bug.cgi?id=1862714
bugzilla.redhat.com/show_bug.cgi?id=1865840
bugzilla.redhat.com/show_bug.cgi?id=1868831
bugzilla.redhat.com/show_bug.cgi?id=1868877
bugzilla.redhat.com/show_bug.cgi?id=1870638
bugzilla.redhat.com/show_bug.cgi?id=1871139
bugzilla.redhat.com/show_bug.cgi?id=1880270
bugzilla.redhat.com/show_bug.cgi?id=1885553
bugzilla.redhat.com/show_bug.cgi?id=1887181
bugzilla.redhat.com/show_bug.cgi?id=1888912
bugzilla.redhat.com/show_bug.cgi?id=1889996
6.2 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
60.0%