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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | >= V3.1.0, < V3.1.5 |
References
- http://packetstormsecurity.com/files/174130/systemd-246-Local-Root-Privilege-Escalation.htmlExploit, Third Party Advisory
- https://blog.compass-security.com/2012/10/dangerous-sudoers-entries-part-2-insecure-functionality/Exploit, Third Party Advisory
- https://github.com/systemd/systemd/blob/main/NEWS#L4335-L4340Release Notes
- https://lists.debian.org/debian-lts-announce/2023/03/msg00032.htmlMailing List, Third Party Advisory
- https://medium.com/%40zenmoviefornotification/saidov-maxim-cve-2023-26604-c1232a526ba7Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230505-0009/Third Party Advisory
- http://packetstormsecurity.com/files/174130/systemd-246-Local-Root-Privilege-Escalation.htmlExploit, Third Party Advisory
- https://blog.compass-security.com/2012/10/dangerous-sudoers-entries-part-2-insecure-functionality/Exploit, Third Party Advisory
- https://github.com/systemd/systemd/blob/main/NEWS#L4335-L4340Release Notes
- https://lists.debian.org/debian-lts-announce/2023/03/msg00032.htmlMailing List, Third Party Advisory
- https://medium.com/%40zenmoviefornotification/saidov-maxim-cve-2023-26604-c1232a526ba7Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230505-0009/Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Timeline
- Published
- Mar 3, 2023
- Last modified
- Oct 14, 2026
- NVD status
- Modified