GHSA-8989-8FHV-VQ42

Vulnerability from github – Published: 2023-03-03 18:30 – Updated: 2025-03-07 21:30
VLAI?
Details

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.

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-26604"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-03-03T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-8989-8fhv-vq42",
  "modified": "2025-03-07T21:30:56Z",
  "published": "2023-03-03T18:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26604"
    },
    {
      "type": "WEB",
      "url": "https://blog.compass-security.com/2012/10/dangerous-sudoers-entries-part-2-insecure-functionality"
    },
    {
      "type": "WEB",
      "url": "https://github.com/systemd/systemd/blob/main/NEWS#L4335-L4340"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00032.html"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/%40zenmoviefornotification/saidov-maxim-cve-2023-26604-c1232a526ba7"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/@zenmoviefornotification/saidov-maxim-cve-2023-26604-c1232a526ba7"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20230505-0009"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/174130/systemd-246-Local-Root-Privilege-Escalation.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.