« Back to list

CVE-2011-0159

Status: ModifiedMedium (5)—

The Safari Settings feature in Safari in Apple iOS 4.x before 4.3 does not properly implement the clearing of cookies during execution of the Safari application, which might make it easier for remote web servers to track users by setting a cookie.

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 (1)

Apple — Iphone OS

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2011-0159",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@apple.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2011-03-11T22:55:02.747",
  "references": [
    {
      "url": "http://lists.apple.com/archives/security-announce/2011//Mar/msg00003.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "http://support.apple.com/kb/HT4564",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/46810",
      "source": "product-security@apple.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1025182",
      "source": "product-security@apple.com"
    },
    {
      "url": "http://lists.apple.com/archives/security-announce/2011//Mar/msg00003.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://support.apple.com/kb/HT4564",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/46810",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1025182",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Safari Settings feature in Safari in Apple iOS 4.x before 4.3 does not properly implement the clearing of cookies during execution of the Safari application, which might make it easier for remote web servers to track users by setting a cookie."
    },
    {
      "lang": "es",
      "value": "La característica de Configuración de Safari en Safari en Apple iOS v4.x antes de v4.3 no aplica adecuadamente la limpieza de cookies durante la ejecución de la aplicación Safari, lo que podría facilitar a los servidores Web remotos rastrear a los usuarios mediante el establecimiento de una \"cookie\"."
    }
  ],
  "lastModified": "2026-06-16T23:26:55.083",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:apple:iphone_os:4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "12E22AF0-2B66-425A-A1EE-4F0E3B0433E7"
            },
            {
              "criteria": "cpe:2.3:o:apple:iphone_os:4.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "36C86BB9-0328-4E34-BC2B-47B3471EC262"
            },
            {
              "criteria": "cpe:2.3:o:apple:iphone_os:4.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1878949F-8E15-4751-8D8A-BFB2B9B9254A"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "product-security@apple.com"
}