FKIE_CVE-2023-27100

Vulnerability from fkie_nvd - Published: 2023-03-22 23:15 - Updated: 2025-02-25 22:15
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software v2.6.0 allows attackers to bypass brute force protection mechanisms via crafted web requests.
References
cve@mitre.orghttp://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html
cve@mitre.orghttps://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.ascVendor Advisory
cve@mitre.orghttps://redmine.pfsense.org/issues/13574Issue Tracking, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html
af854a3a-2127-422b-91ae-364da2661108https://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.ascVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://redmine.pfsense.org/issues/13574Issue Tracking, Patch, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://packetstorm.news/files/id/171791
Impacted products
Vendor Product Version
netgate pfsense_plus 22.05.1
pfsense pfsense 2.6.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:netgate:pfsense_plus:22.05.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "0F3B5179-1D65-4536-AC94-FC7CCE8288DF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:pfsense:pfsense:2.6.0:*:*:*:community:*:*:*",
              "matchCriteriaId": "7F69B7B3-805F-4604-9710-80F11F5E4142",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software v2.6.0 allows attackers to bypass brute force protection mechanisms via crafted web requests."
    }
  ],
  "id": "CVE-2023-27100",
  "lastModified": "2025-02-25T22:15:14.217",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2023-03-22T23:15:12.350",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.asc"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://redmine.pfsense.org/issues/13574"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://redmine.pfsense.org/issues/13574"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://packetstorm.news/files/id/171791"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-307"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-307"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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