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CVE-2021-3100

Estado: ModificadaAlta (8.8)—

The Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.1-13 didn’t mimic the permissions of the JVM being patched, allowing it to escalate privileges.

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)

Amazon — Log4jhotpatch

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-3100",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@paloaltonetworks.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@paloaltonetworks.com",
      "affectedData": [
        {
          "vendor": "Amazon Web Services",
          "product": "log4j-cve-2021-44228-hotpatch",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "1.1-13",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-04-19T23:15:13.020",
  "references": [
    {
      "url": "https://alas.aws.amazon.com/AL2/ALAS-2021-1732.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@paloaltonetworks.com"
    },
    {
      "url": "https://alas.aws.amazon.com/ALAS-2021-1554.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@paloaltonetworks.com"
    },
    {
      "url": "https://unit42.paloaltonetworks.com/aws-log4shell-hot-patch-vulnerabilities",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "psirt@paloaltonetworks.com"
    },
    {
      "url": "https://alas.aws.amazon.com/AL2/ALAS-2021-1732.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://alas.aws.amazon.com/ALAS-2021-1554.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://unit42.paloaltonetworks.com/aws-log4shell-hot-patch-vulnerabilities",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@paloaltonetworks.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-250"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.1-13 didn’t mimic the permissions of the JVM being patched, allowing it to escalate privileges."
    },
    {
      "lang": "es",
      "value": "El paquete hotpatch de Apache Log4j anterior a log4j-cve-2021-44228-hotpatch-1.1-13 no imitaba los permisos de la JVM que se parcheaba, lo que permitía escalar privilegios"
    }
  ],
  "lastModified": "2026-06-17T04:04:40.707",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:amazon:log4jhotpatch:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0F056917-4EA5-44BA-A359-FE921AFEC84F",
              "versionEndExcluding": "1.1-13"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "8BA79AC0-A0CC-4EE6-AEF5-9B8C8EA2C9F1"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "psirt@paloaltonetworks.com"
}