FKIE_CVE-2020-1778

Vulnerability from fkie_nvd - Published: 2020-11-23 16:15 - Updated: 2026-06-17 03:02
Severity
4.1 (Medium) - CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
When OTRS uses multiple backends for user authentication (with LDAP), agents are able to login even if the account is set to invalid. This issue affects OTRS; 8.0.9 and prior versions.
References
security@otrs.comhttps://otrs.com/release-notes/otrs-security-advisory-2020-16/Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://otrs.com/release-notes/otrs-security-advisory-2020-16/Release Notes, Vendor Advisory
Impacted products
Vendor Product Version
otrs otrs *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "OTRS",
          "vendor": "OTRS AG",
          "versions": [
            {
              "lessThanOrEqual": "8.0.9",
              "status": "affected",
              "version": "8.0.x",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@otrs.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E840BC83-9046-429B-8B6D-7B372C053D98",
              "versionEndIncluding": "8.0.9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When OTRS uses multiple backends for user authentication (with LDAP), agents are able to login even if the account is set to invalid. This issue affects OTRS; 8.0.9 and prior versions."
    },
    {
      "lang": "es",
      "value": "Cuando OTRS usa m\u00faltiples backends para la autenticaci\u00f3n de usuarios (con LDAP), unos agentes pueden iniciar sesi\u00f3n incluso si la cuenta est\u00e1 ajustada como no v\u00e1lida.\u0026#xa0;Este problema afecta a OTRS;\u0026#xa0;versiones 8.0.9 y anteriores"
    }
  ],
  "id": "CVE-2020-1778",
  "lastModified": "2026-06-17T03:02:23.147",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.5,
        "impactScore": 2.5,
        "source": "security@otrs.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-11-23T16:15:13.120",
  "references": [
    {
      "source": "security@otrs.com",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://otrs.com/release-notes/otrs-security-advisory-2020-16/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://otrs.com/release-notes/otrs-security-advisory-2020-16/"
    }
  ],
  "sourceIdentifier": "security@otrs.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "security@otrs.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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