CVE-2023-26604

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Summary

CVECVE-2023-26604
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-03-03 16:15:10 UTC
Updated2026-10-14 23:17:15 UTC
Descriptionsystemd 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.010510000 probability, percentile 0.635740000 (date 2026-10-14)

Problem Types: NVD-CWE-noinfo | CWE-269 | n/a | CWE-269 CWE-269 Improper Privilege Management

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Application Systemd Project Systemd All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
CVE-2023-26604 Systemd Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
systemd/NEWS at main · systemd/systemd · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Release Notes
CVE-2023–26604. How did i find it? | by Zenmovie | Medium af854a3a-2127-422b-91ae-364da2661108 medium.com Third Party Advisory
[SECURITY] [DLA 3377-1] systemd security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
Dangerous Sudoers Entries – PART 2: Insecure Functionality – Compass Security Blog af854a3a-2127-422b-91ae-364da2661108 blog.compass-security.com Exploit, Third Party Advisory
systemd 246 Local Root Privilege Escalation ≈ Packet Storm af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com Exploit, Third Party Advisory
CVE-2023–26604. How did i find it? | by Zenmovie | Mar, 2023 | Medium MITRE medium.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 160799 Oracle Enterprise Linux Security Update for systemd (ELSA-2023-3837)
  • 181648 Debian Security Update for systemd (DLA 3377-1)
  • 181717 Debian Security Update for systemd (CVE-2023-26604)
  • 241757 Red Hat Update for systemd (RHSA-2023:3837)
  • 243029 Red Hat Update for systemd (RHSA-2024:1105)
  • 354852 Amazon Linux Security Advisory for systemd : ALAS2-2023-2004
  • 672904 EulerOS Security Update for systemd (EulerOS-SA-2023-1814)
  • 672954 EulerOS Security Update for systemd (EulerOS-SA-2023-1832)
  • 672987 EulerOS Security Update for systemd (EulerOS-SA-2023-1855)
  • 672993 EulerOS Security Update for systemd (EulerOS-SA-2023-1880)
  • 673426 EulerOS Security Update for systemd (EulerOS-SA-2024-1303)
  • 753849 SUSE Enterprise Linux Security Update for systemd (SUSE-SU-2023:1622-1)
  • 753894 SUSE Enterprise Linux Security Update for systemd (SUSE-SU-2023:1776-1)
  • 906773 Common Base Linux Mariner (CBL-Mariner) Security Update for systemd (25572-1)
  • 941160 AlmaLinux Security Update for systemd (ALSA-2023:3837)

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