CERTFR-2021-AVI-958

Vulnerability from certfr_avis - Published: - Updated:

De multiples vulnérabilités ont été corrigées dans Microsoft Office. Elles permettent à un attaquant de provoquer une usurpation d'identité, une élévation de privilèges, une atteinte à la confidentialité des données et une exécution de code à distance.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None
Impacted products
Vendor Product Description
Microsoft Office Microsoft Office LTSC 2021 pour éditions 64 bits
Microsoft Office Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft Office Microsoft Excel 2013 RT Service Pack 1
Microsoft Office Microsoft Office LTSC 2021 pour éditions 32 bits
Microsoft Office Microsoft Office Web Apps Server 2013 Service Pack 1
Microsoft Office Office app
Microsoft Office Microsoft Office 2019 pour éditions 32 bits
Microsoft Office Microsoft Office 2019 pour Mac
Microsoft Office Microsoft Office 2013 Service Pack 1 (éditions 64 bits)
Microsoft Office Microsoft Office 2019 pour éditions 64 bits
Microsoft Office Office Online Server
Microsoft Office Microsoft Office LTSC pour Mac 2021
Microsoft Office Microsoft Excel 2013 Service Pack 1 (éditions 64 bits)
Microsoft Office Microsoft Office 2013 RT Service Pack 1
Microsoft Office Microsoft Excel 2016 (édition 32 bits)
Microsoft Office Microsoft Excel 2013 Service Pack 1 (éditions 32 bits)
Microsoft Office Microsoft SharePoint Server Subscription Edition
Microsoft Office SharePoint Server Subscription Edition Language Pack
Microsoft Office Microsoft SharePoint Enterprise Server 2016
Microsoft Office Microsoft Office 2016 (édition 64 bits)
Microsoft Office Microsoft Excel 2016 (édition 64 bits)
Microsoft Office Microsoft Office 2016 (édition 32 bits)
Microsoft Office Microsoft SharePoint Server 2019
Microsoft Office Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft Office Microsoft Office 2013 Service Pack 1 (éditions 32 bits)
References

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Microsoft Office LTSC 2021 pour \u00e9ditions 64 bits",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft SharePoint Foundation 2013 Service Pack 1",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Excel 2013 RT Service Pack 1",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC 2021 pour \u00e9ditions 32 bits",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office Web Apps Server 2013 Service Pack 1",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Office app",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2019 pour \u00e9ditions 32 bits",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2019 pour Mac",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2013 Service Pack 1 (\u00e9ditions 64 bits)",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2019 pour \u00e9ditions 64 bits",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Office Online Server",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC pour Mac 2021",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Excel 2013 Service Pack 1 (\u00e9ditions 64 bits)",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2013 RT Service Pack 1",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Excel 2016 (\u00e9dition 32 bits)",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Excel 2013 Service Pack 1 (\u00e9ditions 32 bits)",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft SharePoint Server Subscription Edition",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "SharePoint Server Subscription Edition Language Pack",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft SharePoint Enterprise Server 2016",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2016 (\u00e9dition 64 bits)",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Excel 2016 (\u00e9dition 64 bits)",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2016 (\u00e9dition 32 bits)",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft SharePoint Server 2019",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft SharePoint Enterprise Server 2013 Service Pack 1",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2013 Service Pack 1 (\u00e9ditions 32 bits)",
      "product": {
        "name": "Office",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2021-42295",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-42295"
    },
    {
      "name": "CVE-2021-42294",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-42294"
    },
    {
      "name": "CVE-2021-42320",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-42320"
    },
    {
      "name": "CVE-2021-43255",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-43255"
    },
    {
      "name": "CVE-2021-43256",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-43256"
    },
    {
      "name": "CVE-2021-43875",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-43875"
    },
    {
      "name": "CVE-2021-42293",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-42293"
    },
    {
      "name": "CVE-2021-43905",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-43905"
    },
    {
      "name": "CVE-2021-42309",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-42309"
    },
    {
      "name": "CVE-2021-43242",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-43242"
    }
  ],
  "links": [],
  "reference": "CERTFR-2021-AVI-958",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2021-12-15T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Usurpation d\u0027identit\u00e9"
    },
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 corrig\u00e9es dans \u003cspan\nclass=\"textit\"\u003eMicrosoft Office\u003c/span\u003e. Elles permettent \u00e0 un attaquant\nde provoquer une usurpation d\u0027identit\u00e9, une \u00e9l\u00e9vation de privil\u00e8ges, une\natteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une ex\u00e9cution de code \u00e0\ndistance.\n",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Microsoft Office",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft du 14 d\u00e9cembre 2021",
      "url": "https://msrc.microsoft.com/update-guide/"
    }
  ]
}


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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

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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.