CVE-2023-26604
CVSS v3
7.8
HIGH
EPSS Score
5.0 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
systemd before 247 does not adequately block local privilege escalation 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.
Technical details
- Published
- 2023-03-03
Frequently asked questions
What is CVE-2023-26604?
systemd before 247 does not adequately block local privilege escalation 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.
Is CVE-2023-26604 actively exploited?
Active exploitation of CVE-2023-26604 has not been confirmed. The EPSS score is 5.0%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-26604?
CVE-2023-26604 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2023-26604 affecting your environment?
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