MSRC_CVE-2021-42316

Vulnerability from csaf_microsoft - Published: 2021-11-09 08:00 - Updated: 2021-11-12 08:00
Summary
Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Notes

Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Customer Action
Required. The vulnerability documented by this CVE requires customer action to resolve.
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Critical"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
        "category": "general",
        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2021-42316 Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42316"
      },
      {
        "category": "self",
        "summary": "CVE-2021-42316 Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2021/msrc_cve-2021-42316.json"
      },
      {
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        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
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        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
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        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability",
    "tracking": {
      "current_release_date": "2021-11-12T08:00:00.000Z",
      "generator": {
        "date": "2026-01-06T16:30:40.807Z",
        "engine": {
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      "id": "msrc_CVE-2021-42316",
      "initial_release_date": "2021-11-09T08:00:00.000Z",
      "revision_history": [
        {
          "date": "2021-11-09T08:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2021-11-12T08:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added an FAQ and updated the CVSS score. This is an informational change only."
        }
      ],
      "status": "final",
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    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c9.1.6.3",
            "product": {
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            }
          },
          {
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            }
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          {
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            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Dynamics 365 (on-premises) version 9.0"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-42316",
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An attacker can write to any file where the webserver user (nt authority\\network service) has write access.",
          "title": "What privileges could an attacker gain with successful exploitation of this vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
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          "11921"
        ],
        "known_affected": [
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      "references": [
        {
          "category": "self",
          "summary": "CVE-2021-42316 Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42316"
        },
        {
          "category": "self",
          "summary": "CVE-2021-42316 Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2021/msrc_cve-2021-42316.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "9.1.6.3:Security Update:https://support.microsoft.com/help/5008478",
          "product_ids": [
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          ],
          "url": "https://support.microsoft.com/help/5008478"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "9.0.34.5:Security Update:https://support.microsoft.com/help/5008479",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5008479"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.7,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
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            "2"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Remote Code Execution"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability"
    }
  ]
}


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Sightings

Author Source Type Date

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.