Bareos's negative command ACLs can be circumvented by abbreviating commands

{
  "id": "1c53a9dc7b1a0a18f929380ae9d5e22f7f3d5f86bd4f1d52ae2c7ab9259472f2",
  "url": "https://osv.dev/vulnerability/CVE-2024-45044",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Bareos's negative command ACLs can be circumvented by abbreviating commands",
    "summary": "Bareos is open source software for backup, archiving, and recovery of data for operating systems. When a command ACL is in place and a user executes a command in bconsole using an abbreviation (i.e. \"w\" for \"whoami\") the ACL check did not apply to the full form (i.e. \"whoami\") but to the abbreviated form (i.e. \"w\"). If the command ACL is configured with negative ACL that should forbid using the \"whoami\" command, you could still use \"w\" or \"who\" as a command successfully. Fixes for the problem are shipped in Bareos versions 23.0.4, 22.1.6 and 21.1.11. If only positive command ACLs are used without any negation, the problem does not occur.",
    "evidence": "osv:CVE-2024-45044",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-45044",
      "aliases": [
        "CVE-2024-45044",
        "GHSA-jfww-q346-r2r8"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/bareos/bareos",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2666e296ffc4693311266f86ca7bd40ce57e607b"
                },
                {
                  "fixed": "2e70ad6e57fa7b3c1c52a8eb903b8ce6a633b7e7"
                },
                {
                  "introduced": "9419579469c591093427aa98a6a9dba4225ddf75"
                },
                {
                  "fixed": "92a348645c27ad64eb9ceba81df5f74a8c2cb4b2"
                },
                {
                  "introduced": "0"
                },
                {
                  "fixed": "976d9f6667892372397458b52696c9648169d0a0"
                },
                {
                  "fixed": "2a026698b87d13bd1c6275726b5e826702f81dd5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "23.0.0"
                      },
                      {
                        "fixed": "23.0.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "22.0.0"
                      },
                      {
                        "fixed": "22.1.6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "21.1.11"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "2a026698b87d13bd1c6275726b5e826702f81dd5"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "Release/23.0.3",
            "Release/22.1.5",
            "Release/21.1.10",
            "WIP/21.1.10-pre",
            "WIP/22.1.5-pre",
            "WIP/23.0.3-pre",
            "Release/23.0.2",
            "Release/22.1.4",
            "Release/21.1.9",
            "WIP/23.0.2-pre",
            "Release/23.0.1",
            "WIP/23.0.1-pre",
            "WIP/22.1.4-pre",
            "Release/23.0.0",
            "Release/22.1.3",
            "WIP/22.1.3-pre",
            "WIP/24.0.0-pre",
            "Release/22.1.2",
            "WIP/21.1.9-pre",
            "WIP/22.1.2-pre",
            "Release/22.1.1",
            "Release/21.1.8",
            "WIP/22.1.1-pre",
            "Release/22.1.0",
            "WIP/21.1.8-pre",
            "WIP/22.0.4-pre",
            "Release/22.0.3",
            "Release/21.1.7",
            "WIP/22.0.3-pre",
            "Release/22.0.2",
            "WIP/21.1.7-pre",
            "WIP/22.0.2-pre",
            "Release/22.0.1",
            "WIP/22.0.1-pre",
            "Release/22.0.0",
            "Release/21.1.6",
            "WIP/21.1.6-pre",
            "Release/21.1.5",
            "WIP/21.1.5-pre",
            "Release/21.1.4",
            "WIP/21.1.4-pre",
            "Release/21.1.3",
            "WIP/21.1.3-pre",
            "Release/21.1.2",
            "WIP/21.1.2-pre",
            "Release/21.1.1",
            "WIP/21.1.1-pre",
            "Release/21.1.0",
            "WIP/21.0.1-pre",
            "Release/21.0.0",
            "WIP/21.0.0-pre",
            "WIP/20.0.0-pre",
            "WIP/19.2.4-pre",
            "Release/18.4.1",
            "Release/17.2.4-rc1",
            "Release/12.4.1",
            "Release/12.4.0",
            "Release/bacula-5.2.13"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-45044.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.454107946Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45044.json",
        "https://github.com/bareos/bareos/security/advisories/GHSA-jfww-q346-r2r8",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-45044",
        "https://github.com/bareos/bareos/commit/2a026698b87d13bd1c6275726b5e826702f81dd5",
        "https://github.com/bareos/bareos/pull/1875"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-285"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45044.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-45044",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521196,
  "published_at": "2024-09-10T14:57:57.464+00:00"
}