{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "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. - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-26604.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "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.",
    "tracking": {
      "current_release_date": "2023-04-22T00:00:00.000Z",
      "generator": {
        "date": "2025-10-20T00:21:27.847Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-26604",
      "initial_release_date": "2023-03-10T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-03-11T00:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2023-04-22T00:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "1.0",
                "product": {
                  "name": "CBL Mariner 1.0",
                  "product_id": "16820"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003ccm1 systemd 239-44",
                "product": {
                  "name": "\u003ccm1 systemd 239-44",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "cm1 systemd 239-44",
                "product": {
                  "name": "cm1 systemd 239-44",
                  "product_id": "17933"
                }
              }
            ],
            "category": "product_name",
            "name": "systemd"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003ccm1 systemd 239-44 as a component of CBL Mariner 1.0",
          "product_id": "16820-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "16820"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "cm1 systemd 239-44 as a component of CBL Mariner 1.0",
          "product_id": "17933-16820"
        },
        "product_reference": "17933",
        "relates_to_product_reference": "16820"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-26604",
      "notes": [
        {
          "category": "general",
          "text": "mitre",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "17933-16820"
        ],
        "known_affected": [
          "16820-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "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. - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-26604.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-03-11T00:00:00.000Z",
          "details": "239-44:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "16820-1"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "temporalScore": 7.8,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "16820-1"
          ]
        }
      ],
      "title": "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."
    }
  ]
}