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CVE-2017-20127

Estado: ModificadaCrítica (9.8)—

A vulnerability was found in KB Login Authentication Script 1.1 and classified as critical. Affected by this issue is some unknown functionality. The manipulation of the argument username/password with the input 'or''=' leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

KB Login Authentication Script Project — KB Login Authentication Script

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2017-20127",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2017-20127",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-14T15:54:28.778856Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.3,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.4,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  },
  "affected": [
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          "product": "KB Login Authentication Script",
          "versions": [
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              "version": "1.1"
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  "published": "2022-07-13T18:15:08.537",
  "references": [
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      "tags": [
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      "source": "cna@vuldb.com"
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    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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      "tags": [
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        "Third Party Advisory",
        "VDB Entry"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-89"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was found in KB Login Authentication Script 1.1 and classified as critical. Affected by this issue is some unknown functionality. The manipulation of the argument username/password with the input 'or''=' leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado una vulnerabilidad en KB Login Authentication Script versión 1.1 y ha sido clasificada como crítica. Este problema afecta a una funcionalidad desconocida. La manipulación del argumento nombre de usuario/contraseña con la entrada \"o\"\"=\" conlleva a una inyección sql. El ataque puede ser lanzado remotamente. La explotación ha sido divulgada al público y puede ser usada"
    }
  ],
  "lastModified": "2026-06-17T01:15:13.840",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:kb_login_authentication_script_project:kb_login_authentication_script:1.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D3F5467F-4578-4EBB-9E3C-93F1A8ED17A6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cna@vuldb.com"
}