GSD-2021-27770

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
The vulnerability was discovered within the “FaviconService”. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the “meetings”-function where users can specify an external URL where the online meeting will take place.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2021-27770",
    "description": "The vulnerability was discovered within the \u201cFaviconService\u201d. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the \u201cmeetings\u201d-function where users can specify an external URL where the online meeting will take place.",
    "id": "GSD-2021-27770"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-27770"
      ],
      "details": "The vulnerability was discovered within the \u201cFaviconService\u201d. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the \u201cmeetings\u201d-function where users can specify an external URL where the online meeting will take place.",
      "id": "GSD-2021-27770",
      "modified": "2023-12-13T01:23:35.450189Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "psirt@hcl.com",
        "DATE_PUBLIC": "2022-04-15T00:00:00.000Z",
        "ID": "CVE-2021-27770",
        "STATE": "PUBLIC",
        "TITLE": "HCL Sametime is vulnerable to arbitrary HTTP requests"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Sametime",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "11.6"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "HCL Software"
            }
          ]
        }
      },
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      "data_version": "4.0",
      "description": {
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            "lang": "eng",
            "value": "The vulnerability was discovered within the \u201cFaviconService\u201d. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the \u201cmeetings\u201d-function where users can specify an external URL where the online meeting will take place."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-472 External Control of Assumed-Immutable Web Parameter"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0097430",
            "refsource": "MISC",
            "url": "https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0097430"
          }
        ]
      },
      "source": {
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:hcltech:sametime:11.6:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ID": "CVE-2021-27770"
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        "description": {
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              "value": "The vulnerability was discovered within the \u201cFaviconService\u201d. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the \u201cmeetings\u201d-function where users can specify an external URL where the online meeting will take place."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
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                  "value": "NVD-CWE-Other"
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              "name": "https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0097430",
              "refsource": "MISC",
              "tags": [
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              ],
              "url": "https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0097430"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "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,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-06-30T21:26Z",
      "publishedDate": "2022-05-12T22:15Z"
    }
  }
}



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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.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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