Detections
Analytics
RHEL 8 : systemd (RHSA-2021:3900)
high Nessus Plugin ID 154260
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Synopsis
The remote Red Hat host is missing one or more security updates for systemd.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3900 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.
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.
Solution
Update the RHEL systemd package based on the guidance in RHSA-2021:3900.See Also
http://www.nessus.org/u?baab1b27
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/errata/RHSA-2021:3900
Plugin Details
Severity: High
ID: 154260
File Name: redhat-RHSA-2021-3900.nasl
Version: 1.10
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 10/20/2021
Updated: 11/7/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
Vendor
Vendor Severity: Moderate
CVSS v2
Risk Factor: Medium
Base Score: 6.2
Temporal Score: 4.9
Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2020-13776
CVSS v3
Risk Factor: High
Base Score: 7
Temporal Score: 6.3
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS Score Source: CVE-2019-3842
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:systemd-journal-remote, p-cpe:/a:redhat:enterprise_linux:systemd-pam, p-cpe:/a:redhat:enterprise_linux:systemd, p-cpe:/a:redhat:enterprise_linux:systemd-libs, p-cpe:/a:redhat:enterprise_linux:systemd-devel, cpe:/o:redhat:rhel_eus:8.2, p-cpe:/a:redhat:enterprise_linux:systemd-udev, p-cpe:/a:redhat:enterprise_linux:systemd-container, p-cpe:/a:redhat:enterprise_linux:systemd-tests
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/19/2021
Vulnerability Publication Date: 4/9/2019
Reference Information
CVE: CVE-2019-3842, CVE-2020-13776