{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Anonymous"
        ]
      }
    ],
    "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-2023-38182 Microsoft Exchange Server Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38182"
      },
      {
        "category": "self",
        "summary": "CVE-2023-38182 Microsoft Exchange Server Remote Code Execution Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-38182.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": "Microsoft Exchange Server Remote Code Execution Vulnerability",
    "tracking": {
      "current_release_date": "2023-08-15T07:00:00.000Z",
      "generator": {
        "date": "2025-01-01T01:58:31.455Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-38182",
      "initial_release_date": "2023-08-08T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-08-08T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2023-08-09T07:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added FAQ regarding a new known issue in the August Exchange security updates."
        },
        {
          "date": "2023-08-15T07:00:00.000Z",
          "legacy_version": "2",
          "number": "3",
          "summary": "The known issue affecting the non-English August updates of Exchange Server has been resolved.  Microsoft recommends installing the updated packages as soon as possible."
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.02.1258.025",
            "product": {
              "name": "Microsoft Exchange Server 2019 Cumulative Update 13 \u003c15.02.1258.025",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "15.02.1258.025",
            "product": {
              "name": "Microsoft Exchange Server 2019 Cumulative Update 13 15.02.1258.025",
              "product_id": "12191"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Exchange Server 2019 Cumulative Update 13"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.01.2507.032",
            "product": {
              "name": "Microsoft Exchange Server 2016 Cumulative Update 23 \u003c15.01.2507.032",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "15.01.2507.032",
            "product": {
              "name": "Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.032",
              "product_id": "12039"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Exchange Server 2016 Cumulative Update 23"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.02.1118.037",
            "product": {
              "name": "Microsoft Exchange Server 2019 Cumulative Update 12 \u003c15.02.1118.037",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "15.02.1118.037",
            "product": {
              "name": "Microsoft Exchange Server 2019 Cumulative Update 12 15.02.1118.037",
              "product_id": "12038"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Exchange Server 2019 Cumulative Update 12"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-38182",
      "cwe": {
        "id": "CWE-502",
        "name": "Deserialization of Untrusted Data"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "Yes, an issue has been discovered with the non-English August updates of Exchange Server and you should postpone installing these updates.  The script protecting customers from the vulnerability documented by CVE-2023-21709 can be run to protect against the vulnerability without installing the August updates. Microsoft recommends running the script.\nAugust 15, 2023 Update: The known issue affecting the non-English August updates of Exchange Server has been resolved.  Microsoft recommends installing the updated packages as soon as possible.\nPlease see the Exchange Blog for more information.",
          "title": "Is there anything that I should be aware of if I\u0027m running a non-English operating system and version of Exchange server?"
        },
        {
          "category": "faq",
          "text": "An authenticated attacker who is on the same intranet as the Exchange server can achieve remote code execution via a PowerShell remoting session.",
          "title": "How could an attacker exploit this vulnerability?"
        },
        {
          "category": "faq",
          "text": "An authenticated attacker could exploit this vulnerability with LAN access.",
          "title": "According to the CVSS metric, the attack vector is adjacent (AV:A). What does that mean for this vulnerability?"
        },
        {
          "category": "faq",
          "text": "Yes, the attacker must be authenticated with LAN-access and have credentials for a valid Exchange user.",
          "title": "According to the CVSS metric, privileges required is low (PR:L). Does the attacker need to be in an authenticated role on the Exchange Server?"
        }
      ],
      "product_status": {
        "fixed": [
          "12038",
          "12039",
          "12191"
        ],
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-38182 Microsoft Exchange Server Remote Code Execution Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38182"
        },
        {
          "category": "self",
          "summary": "CVE-2023-38182 Microsoft Exchange Server Remote Code Execution Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38182"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-08-08T07:00:00.000Z",
          "details": "15.02.1258.025:Security Update:https://support.microsoft.com/help/5030524",
          "product_ids": [
            "1"
          ],
          "url": "https://support.microsoft.com/help/5030524"
        },
        {
          "category": "vendor_fix",
          "date": "2023-08-08T07:00:00.000Z",
          "details": "15.01.2507.032:Security Update:https://support.microsoft.com/help/5030524",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5030524"
        },
        {
          "category": "vendor_fix",
          "date": "2023-08-08T07:00:00.000Z",
          "details": "15.02.1118.037:Security Update:https://support.microsoft.com/help/5030524",
          "product_ids": [
            "3"
          ],
          "url": "https://support.microsoft.com/help/5030524"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/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": "Exploited:No;Latest Software Release:Exploitation More Likely"
        }
      ],
      "title": "Microsoft Exchange Server Remote Code Execution Vulnerability"
    }
  ]
}