GSD-2021-20281

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
It was possible for some users without permission to view other users' full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.
Aliases
Aliases
CVE-2021-20281
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-20281",
    "description": "It was possible for some users without permission to view other users\u0027 full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.",
    "id": "GSD-2021-20281"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-20281"
      ],
      "details": "It was possible for some users without permission to view other users\u0027 full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.",
      "id": "GSD-2021-20281",
      "modified": "2023-12-13T01:23:12.816739Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2021-20281",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "moodle",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "Fixed in 3.10.2, 3.9.5, 3.8.8, 3.5.17"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "It was possible for some users without permission to view other users\u0027 full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-200"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1939041",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939041"
          },
          {
            "name": "https://moodle.org/mod/forum/discuss.php?d=419652",
            "refsource": "MISC",
            "url": "https://moodle.org/mod/forum/discuss.php?d=419652"
          },
          {
            "name": "FEDORA-2021-1c27e89d49",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AFSNJ7XHVTC52RSRX2GBQFF3VEEAY2MS/"
          },
          {
            "name": "FEDORA-2021-50f63a0161",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UFH5DDMU5TZ3JT4Q52WMRAHACA5MHIMT/"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=3.5.0,\u003c3.5.17||\u003e=3.8.0,\u003c3.8.8||\u003e=3.9.0,\u003c3.9.5||\u003e=3.10.0,\u003c3.10.2",
          "affected_versions": "All versions starting from 3.5.0 before 3.5.17, all versions starting from 3.8.0 before 3.8.8, all versions starting from 3.9.0 before 3.9.5, all versions starting from 3.10.0 before 3.10.2",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-863",
            "CWE-937"
          ],
          "date": "2022-08-05",
          "description": "It was possible for some users without permission to view other users\u0027 full names to do so via the online users block in moodle ",
          "fixed_versions": [
            "3.5.17",
            "3.8.8",
            "3.9.5",
            "3.10.2"
          ],
          "identifier": "CVE-2021-20281",
          "identifiers": [
            "CVE-2021-20281"
          ],
          "not_impacted": "All versions before 3.5.0, all versions starting from 3.5.17 before 3.8.0, all versions starting from 3.8.8 before 3.9.0, all versions starting from 3.9.5 before 3.10.0, all versions starting from 3.10.2",
          "package_slug": "packagist/moodle/moodle",
          "pubdate": "2021-03-15",
          "solution": "Upgrade to versions 3.5.17, 3.8.8, 3.9.5, 3.10.2 or above.",
          "title": "Information Exposure",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-20281",
            "https://bugzilla.redhat.com/show_bug.cgi?id=1939041",
            "https://moodle.org/mod/forum/discuss.php?d=419652"
          ],
          "uuid": "d9a8d219-f2a0-4d0f-a40a-c8d7d7b9a897"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.9.5",
                "versionStartIncluding": "3.9.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.5.17",
                "versionStartIncluding": "3.5.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.10.2",
                "versionStartIncluding": "3.10.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.8.8",
                "versionStartIncluding": "3.8.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2021-20281"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "It was possible for some users without permission to view other users\u0027 full names to do so via the online users block in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-863"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://moodle.org/mod/forum/discuss.php?d=419652",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://moodle.org/mod/forum/discuss.php?d=419652"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1939041",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939041"
            },
            {
              "name": "FEDORA-2021-1c27e89d49",
              "refsource": "FEDORA",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AFSNJ7XHVTC52RSRX2GBQFF3VEEAY2MS/"
            },
            {
              "name": "FEDORA-2021-50f63a0161",
              "refsource": "FEDORA",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UFH5DDMU5TZ3JT4Q52WMRAHACA5MHIMT/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-08-05T17:51Z",
      "publishedDate": "2021-03-15T22:15Z"
    }
  }
}


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  • 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.