« Back to list

CVE-2024-38474

Status: ModifiedCritical (9.8)—

Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to execute scripts in directories permitted by the configuration but not directly reachable by any URL or source disclosure of scripts meant to only to be executed as CGI.

Users are recommended to upgrade to version 2.4.60, which fixes this issue.

Some RewriteRules that capture and substitute unsafely will now fail unless rewrite flag "UnsafeAllow3F" is specified.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Apache — Http ServerNetapp — Clustered Data Ontap

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2024-38474",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-38474",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-07-09T18:02:41.305061Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "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"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache HTTP Server",
          "versions": [
            {
              "status": "affected",
              "version": "2.4.0",
              "versionType": "semver",
              "lessThanOrEqual": "2.4.59"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2024-07-01T19:15:04.760",
  "references": [
    {
      "url": "https://httpd.apache.org/security/vulnerabilities_24.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20240712-0001/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2024/07/01/7",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://httpd.apache.org/security/vulnerabilities_24.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20240712-0001/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@apache.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-116"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to execute scripts in\ndirectories permitted by the configuration but not directly reachable by any URL or source disclosure of scripts meant to only to be executed as CGI.\n\nUsers are recommended to upgrade to version 2.4.60, which fixes this issue.\n\nSome RewriteRules that capture and substitute unsafely will now fail unless rewrite flag \"UnsafeAllow3F\" is specified."
    },
    {
      "lang": "es",
      "value": "El problema de codificación de sustitución en mod_rewrite en Apache HTTP Server 2.4.59 y versiones anteriores permite al atacante ejecutar scripts en directorios permitidos por la configuración pero a los que no se puede acceder directamente mediante ninguna URL o divulgación de fuente de scripts destinados a ejecutarse únicamente como CGI. Se recomienda a los usuarios actualizar a la versión 2.4.60, que soluciona este problema. Algunas RewriteRules que capturan y sustituyen de forma insegura ahora fallarán a menos que se especifique el indicador de reescritura \"UnsafeAllow3F\"."
    }
  ],
  "lastModified": "2026-06-17T07:40:21.237",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "13126636-FD76-4E3E-B949-14A5082DE02A",
              "versionEndExcluding": "2.4.60",
              "versionStartIncluding": "2.4.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:netapp:clustered_data_ontap:9.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C3ED302E-F464-40DE-A976-FD518E42D95D"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@apache.org"
}