FKIE_CVE-2011-4302

Vulnerability from fkie_nvd - Published: 2012-07-11 10:26 - Updated: 2026-06-16 23:34
Severity
Summary
mnet/xmlrpc/client.php in MNET in Moodle 1.9.x before 1.9.14, 2.0.x before 2.0.5, and 2.1.x before 2.1.2 does not properly process the return value of the openssl_verify function, which allows remote attackers to bypass validation via a crafted certificate.
References
secalert@redhat.comhttp://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=54941685e3e86ec085641dcb7ebb1f96f06735b2
secalert@redhat.comhttp://moodle.org/mod/forum/discuss.php?d=188314Vendor Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=747444Patch
af854a3a-2127-422b-91ae-364da2661108http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=54941685e3e86ec085641dcb7ebb1f96f06735b2
af854a3a-2127-422b-91ae-364da2661108http://moodle.org/mod/forum/discuss.php?d=188314Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=747444Patch
Impacted products
Vendor Product Version
moodle moodle 1.9.2
moodle moodle 1.9.3
moodle moodle 1.9.4
moodle moodle 1.9.5
moodle moodle 1.9.6
moodle moodle 1.9.7
moodle moodle 1.9.8
moodle moodle 1.9.9
moodle moodle 1.9.10
moodle moodle 1.9.11
moodle moodle 1.9.12
moodle moodle 1.9.13
moodle moodle 2.0.0
moodle moodle 2.0.1
moodle moodle 2.0.2
moodle moodle 2.0.3
moodle moodle 2.0.4
moodle moodle 2.1.0
moodle moodle 2.1.1
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
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              "vulnerable": true
            },
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              "matchCriteriaId": "6B81655E-C3B5-4115-A4C4-B7AC2FCDAB7F",
              "vulnerable": true
            },
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              "matchCriteriaId": "ED9C3840-66BE-47EC-9F0C-E9D2171FF0B2",
              "vulnerable": true
            },
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              "vulnerable": true
            },
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              "matchCriteriaId": "768CE5AF-955B-4148-998A-A46BBDBA618B",
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              "matchCriteriaId": "4283440F-9B21-4CE9-81FF-79DF3DEDCEE7",
              "vulnerable": true
            },
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              "matchCriteriaId": "A989FADA-89C3-472B-86BF-0630D1CBBCA8",
              "vulnerable": true
            },
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              "matchCriteriaId": "4FAF84CB-46F1-4F37-BBAC-1CED0600B5B0",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:a:moodle:moodle:2.0.0:*:*:*:*:*:*:*",
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              "vulnerable": true
            },
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              "matchCriteriaId": "18C6F348-DAE9-4440-8B3A-8D92ADC6606F",
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              "matchCriteriaId": "367537BF-CBDF-4CBB-91B4-6E5A567EF605",
              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "mnet/xmlrpc/client.php in MNET in Moodle 1.9.x before 1.9.14, 2.0.x before 2.0.5, and 2.1.x before 2.1.2 does not properly process the return value of the openssl_verify function, which allows remote attackers to bypass validation via a crafted certificate."
    },
    {
      "lang": "es",
      "value": "mnet/xmlrpc/client.php en MNET en Moodle v1.9.x antes de v1.9.14, v2.0.x antes de v2.0.5,  v2.1.2 antes de v2.1.x, no procesa correctamente el valor de retorno de la funci\u00f3n openssl_verify, lo que permite a atacantes remotos evitar la validaci\u00f3n a trav\u00e9s de un certificado modificado."
    }
  ],
  "id": "CVE-2011-4302",
  "lastModified": "2026-06-16T23:34:43.993",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ]
  },
  "published": "2012-07-11T10:26:10.907",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=54941685e3e86ec085641dcb7ebb1f96f06735b2"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://moodle.org/mod/forum/discuss.php?d=188314"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Patch"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=747444"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=54941685e3e86ec085641dcb7ebb1f96f06735b2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://moodle.org/mod/forum/discuss.php?d=188314"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=747444"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.