FKIE_CVE-2025-45311

Vulnerability from fkie_nvd - Published: 2025-11-26 16:15 - Updated: 2025-12-03 16:15
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Insecure permissions in fail2ban-client v0.11.2 allows attackers with limited sudo privileges to perform arbitrary operations as root. NOTE: this is disputed by multiple parties because the action for a triggered rule can legitimately be an arbitrary operation as root. Thus, the software is behaving in accordance with its intended privilege model.
References
cve@mitre.orghttps://gist.github.com/R-Security/1c707a08f9c7f9a91d9d84b5010aaed2
cve@mitre.orghttps://github.com/fail2ban/fail2ban/issues/4110
cve@mitre.orghttps://packetstorm.news/files/id/189989
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/12/03/2
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insecure permissions in fail2ban-client v0.11.2 allows attackers with limited sudo privileges to perform arbitrary operations as root. NOTE: this is disputed by multiple parties because the action for a triggered rule can legitimately be an arbitrary operation as root. Thus, the software is behaving in accordance with its intended privilege model."
    }
  ],
  "id": "CVE-2025-45311",
  "lastModified": "2025-12-03T16:15:55.590",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-11-26T16:15:47.663",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://gist.github.com/R-Security/1c707a08f9c7f9a91d9d84b5010aaed2"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/fail2ban/fail2ban/issues/4110"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://packetstorm.news/files/id/189989"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/12/03/2"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-266"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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