FKIE_CVE-2015-3644

Vulnerability from fkie_nvd - Published: 2015-05-14 00:59 - Updated: 2025-04-12 10:46
Severity ?
Summary
Stunnel 5.00 through 5.13, when using the redirect option, does not redirect client connections to the expected server after the initial connection, which allows remote attackers to bypass authentication.
References
cve@mitre.orghttp://www.debian.org/security/2015/dsa-3299
cve@mitre.orghttp://www.securityfocus.com/bid/74659
cve@mitre.orghttp://www.securitytracker.com/id/1032324
cve@mitre.orghttps://www.stunnel.org/CVE-2015-3644.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2015/dsa-3299
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/74659
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1032324
af854a3a-2127-422b-91ae-364da2661108https://www.stunnel.org/CVE-2015-3644.htmlPatch, Vendor Advisory
Impacted products
Vendor Product Version
stunnel stunnel 5.00
stunnel stunnel 5.01
stunnel stunnel 5.02
stunnel stunnel 5.03
stunnel stunnel 5.04
stunnel stunnel 5.05
stunnel stunnel 5.06
stunnel stunnel 5.07
stunnel stunnel 5.08
stunnel stunnel 5.09
stunnel stunnel 5.10
stunnel stunnel 5.11
stunnel stunnel 5.12
stunnel stunnel 5.13
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.00:*:*:*:*:*:*:*",
              "matchCriteriaId": "86A9A9F5-B193-44DC-88EF-D0409AB2CD42",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.01:*:*:*:*:*:*:*",
              "matchCriteriaId": "4AD482D3-F96B-41EB-BEF2-ED59A2B2E77B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.02:*:*:*:*:*:*:*",
              "matchCriteriaId": "79CCAF8F-FAB6-40B5-8752-0E5AA6CDC0CD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.03:*:*:*:*:*:*:*",
              "matchCriteriaId": "59AE589F-7747-4F46-A58F-608AB7110B46",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.04:*:*:*:*:*:*:*",
              "matchCriteriaId": "14F8AE5A-BCBB-4F41-862D-D930CAA67B61",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.05:*:*:*:*:*:*:*",
              "matchCriteriaId": "E881D0A8-5BA1-41FC-9743-262CAB3BCD08",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.06:*:*:*:*:*:*:*",
              "matchCriteriaId": "5636BFAF-4A5C-4002-B6BB-75B6F6BD534D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.07:*:*:*:*:*:*:*",
              "matchCriteriaId": "C9B042A1-00CF-40CD-BAA2-1E2FFBE6FEE6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.08:*:*:*:*:*:*:*",
              "matchCriteriaId": "26F8ECBC-35ED-4736-9EA3-E439747E4249",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.09:*:*:*:*:*:*:*",
              "matchCriteriaId": "5A40647D-D3F4-4BB8-9A20-66366E330EF4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.10:*:*:*:*:*:*:*",
              "matchCriteriaId": "D933945A-4FFE-4A90-B5A7-D375E36F5D90",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.11:*:*:*:*:*:*:*",
              "matchCriteriaId": "9B9E126F-CC19-4C4D-BB98-D4A21D7B84C0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.12:*:*:*:*:*:*:*",
              "matchCriteriaId": "60862632-E37E-40D4-8153-FE82CFD0E011",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:stunnel:stunnel:5.13:*:*:*:*:*:*:*",
              "matchCriteriaId": "D2774924-2867-42CF-AFFB-996809126E31",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stunnel 5.00 through 5.13, when using the redirect option, does not redirect client connections to the expected server after the initial connection, which allows remote attackers to bypass authentication."
    },
    {
      "lang": "es",
      "value": "Stunnel 5.00 hasta 5.13, cuando utiliza la opci\u00f3n de redirecci\u00f3n, no redirige las conexiones de clientes al servidor esperado despu\u00e9s de la conexi\u00f3n inicial, lo que permite a atacantes remotos evadir la autenticaci\u00f3n."
    }
  ],
  "id": "CVE-2015-3644",
  "lastModified": "2025-04-12T10:46:40.837",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2015-05-14T00:59:06.147",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://www.debian.org/security/2015/dsa-3299"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/74659"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securitytracker.com/id/1032324"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.stunnel.org/CVE-2015-3644.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.org/security/2015/dsa-3299"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/74659"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id/1032324"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.stunnel.org/CVE-2015-3644.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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