FKIE_CVE-2016-7037

Vulnerability from fkie_nvd - Published: 2017-01-23 21:59 - Updated: 2025-11-18 13:54
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
The verify function in Encryption/Symmetric.php in Malcolm Fell jwt before 1.0.3 does not use a timing-safe function for hash comparison, which allows attackers to spoof signatures via a timing attack.
References
secalert@redhat.comhttp://www.securityfocus.com/bid/95847
secalert@redhat.comhttps://github.com/emarref/jwt/pull/20Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://github.com/emarref/jwt/releases/tag/1.0.3Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/95847
af854a3a-2127-422b-91ae-364da2661108https://github.com/emarref/jwt/pull/20Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/emarref/jwt/releases/tag/1.0.3Issue Tracking, Patch, Third Party Advisory
Impacted products
Vendor Product Version
emarref jwt *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:emarref:jwt:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0B47BCDB-F12D-446C-ADC5-F34958F58079",
              "versionEndIncluding": "1.0.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The verify function in Encryption/Symmetric.php in Malcolm Fell jwt before 1.0.3 does not use a timing-safe function for hash comparison, which allows attackers to spoof signatures via a timing attack."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n de verificaci\u00f3n en Encryption/Symmetric.php en Malcolm Fell jwt en versiones anteriores a 1.0.3 no utiliza una funci\u00f3n segura de temporizaci\u00f3n para la comparaci\u00f3n de hash, lo que permite a los atacantes suplantar firmas a trav\u00e9s de un ataque de temporizaci\u00f3n."
    }
  ],
  "id": "CVE-2016-7037",
  "lastModified": "2025-11-18T13:54:49.600",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-01-23T21:59:02.487",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://www.securityfocus.com/bid/95847"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/emarref/jwt/pull/20"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/emarref/jwt/releases/tag/1.0.3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/95847"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/emarref/jwt/pull/20"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/emarref/jwt/releases/tag/1.0.3"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-361"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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