openEuler 20.03 LTS SP1 update for systemd



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-26604
CWE-ID CWE-269
Exploitation vector Local
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

systemd-help
Operating systems & Components / Operating system package or component

systemd-container
Operating systems & Components / Operating system package or component

systemd-nspawn
Operating systems & Components / Operating system package or component

systemd-udev
Operating systems & Components / Operating system package or component

systemd-libs
Operating systems & Components / Operating system package or component

systemd-timesyncd
Operating systems & Components / Operating system package or component

systemd-resolved
Operating systems & Components / Operating system package or component

systemd-debugsource
Operating systems & Components / Operating system package or component

systemd-udev-compat
Operating systems & Components / Operating system package or component

systemd-devel
Operating systems & Components / Operating system package or component

systemd-networkd
Operating systems & Components / Operating system package or component

systemd-debuginfo
Operating systems & Components / Operating system package or component

systemd-journal-remote
Operating systems & Components / Operating system package or component

systemd-pam
Operating systems & Components / Operating system package or component

systemd
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper Privilege Management

EUVDB-ID: #VU74146

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-26604

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper privilege management for some Sudo configurations, e.g., plausible sudoers files in which the "systemctl status" command may be executed. Specifically, systemd does not set LESSSECURE to 1, and thus other programs may be launched from the less program. This presents a substantial security risk when running systemctl from Sudo, because less executes as root when the terminal size is too small to show the complete systemctl output.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

systemd-help: before 243-59

systemd-container: before 243-59

systemd-nspawn: before 243-59

systemd-udev: before 243-59

systemd-libs: before 243-59

systemd-timesyncd: before 243-59

systemd-resolved: before 243-59

systemd-debugsource: before 243-59

systemd-udev-compat: before 243-59

systemd-devel: before 243-59

systemd-networkd: before 243-59

systemd-debuginfo: before 243-59

systemd-journal-remote: before 243-59

systemd-pam: before 243-59

systemd: before 243-59

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1166


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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