MSRC_CVE-2022-33633

Vulnerability from csaf_microsoft - Published: 2022-07-12 07:00 - Updated: 2022-07-12 07:00
Summary
Skype for Business and Lync 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": {
    "acknowledgments": [
      {
        "names": [
          "Yiming Xiang with \u003ca href=\"https://www.nsfocus.cn/\"\u003eNSFOCUS TIANJI LAB\u003c/a\u003e"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Important"
    },
    "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-2022-33633 Skype for Business and Lync Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-33633"
      },
      {
        "category": "self",
        "summary": "CVE-2022-33633 Skype for Business and Lync Remote Code Execution Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2022/msrc_cve-2022-33633.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Exploitability Index",
        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Skype for Business and Lync Remote Code Execution Vulnerability",
    "tracking": {
      "current_release_date": "2022-07-12T07:00:00.000Z",
      "generator": {
        "date": "2025-07-08T15:35:53.971Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2022-33633",
      "initial_release_date": "2022-07-12T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2022-07-12T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c8308.1198",
            "product": {
              "name": "Microsoft Lync Server 2013 CU10 \u003c8308.1198",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "8308.1198",
            "product": {
              "name": "Microsoft Lync Server 2013 CU10 8308.1198",
              "product_id": "11892"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Lync Server 2013 CU10"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c9319.634",
            "product": {
              "name": "Skype for Business Server 2015 CU12 \u003c9319.634",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "9319.634",
            "product": {
              "name": "Skype for Business Server 2015 CU12 9319.634",
              "product_id": "12025"
            }
          }
        ],
        "category": "product_name",
        "name": "Skype for Business Server 2015 CU12"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c2046.404",
            "product": {
              "name": "Skype for Business Server 2019 CU6 \u003c2046.404",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "2046.404",
            "product": {
              "name": "Skype for Business Server 2019 CU6 2046.404",
              "product_id": "12026"
            }
          }
        ],
        "category": "product_name",
        "name": "Skype for Business Server 2019 CU6"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-33633",
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "To successfully exploit this vulnerability, the attacker must have write access on the file share, and an active file share administrator account on the target\nserver.  With write access, the attacker would need to modify specific files on the target server to trigger code execution.",
          "title": "According to the CVSS metric, privileges required is high (PR:H). What privileges are needed by the attacker and how are they used in the context of the remote code execution?"
        }
      ],
      "product_status": {
        "fixed": [
          "11892",
          "12025",
          "12026"
        ],
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2022-33633 Skype for Business and Lync Remote Code Execution Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-33633"
        },
        {
          "category": "self",
          "summary": "CVE-2022-33633 Skype for Business and Lync Remote Code Execution Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2022/msrc_cve-2022-33633.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-07-12T07:00:00.000Z",
          "details": "8308.1198:Security Update:https://support.microsoft.com/help/5016714",
          "product_ids": [
            "3"
          ],
          "url": "https://support.microsoft.com/help/5016714"
        },
        {
          "category": "vendor_fix",
          "date": "2022-07-12T07:00:00.000Z",
          "details": "9319.634:Security Update:https://support.microsoft.com/help/5016714",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5016714"
        },
        {
          "category": "vendor_fix",
          "date": "2022-07-12T07:00:00.000Z",
          "details": "2046.404:Security Update:https://support.microsoft.com/help/5016714",
          "product_ids": [
            "1"
          ],
          "url": "https://support.microsoft.com/help/5016714"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.3,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3"
          ]
        }
      ],
      "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": "Skype for Business and Lync Remote Code Execution Vulnerability"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.