gsd-2021-39855
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Acrobat Reader DC ActiveX Control versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to obtain NTLMv2 credentials. Exploitation of this issue requires user interaction in that a victim must open a maliciously crafted Microsoft Office file, or visit an attacker controlled web page.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2021-39855",
    "description": "Acrobat Reader DC ActiveX Control versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to obtain NTLMv2 credentials. Exploitation of this issue requires user interaction in that a victim must open a maliciously crafted Microsoft Office file, or visit an attacker controlled web page.",
    "id": "GSD-2021-39855"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-39855"
      ],
      "details": "Acrobat Reader DC ActiveX Control versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to obtain NTLMv2 credentials. Exploitation of this issue requires user interaction in that a victim must open a maliciously crafted Microsoft Office file, or visit an attacker controlled web page.",
      "id": "GSD-2021-39855",
      "modified": "2023-12-13T01:23:15.864438Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "psirt@adobe.com",
        "DATE_PUBLIC": "2021-09-14T23:00:00.000Z",
        "ID": "CVE-2021-39855",
        "STATE": "PUBLIC",
        "TITLE": "Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via src Parameter"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Acrobat Reader",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c=",
                          "version_value": "2020.004.30006"
                        },
                        {
                          "version_affected": "\u003c=",
                          "version_value": "2017.011.30199"
                        },
                        {
                          "version_affected": "\u003c=",
                          "version_value": "2021.005.20060"
                        },
                        {
                          "version_affected": "\u003c=",
                          "version_value": "None"
                        }
                      ]
                    }
                  }
                ]
              },
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            }
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          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "Low",
          "attackVector": "Network",
          "availabilityImpact": "None",
          "baseScore": 6.5,
          "baseSeverity": "Medium",
          "confidentialityImpact": "High",
          "integrityImpact": "None",
          "privilegesRequired": "None",
          "scope": "Unchanged",
          "userInteraction": "Required",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "version": "3.1"
        }
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      "problemtype": {
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          {
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              {
                "lang": "eng",
                "value": "Information Exposure (CWE-200)"
              }
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          }
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          {
            "name": "https://helpx.adobe.com/security/products/acrobat/apsb21-55.html",
            "refsource": "MISC",
            "url": "https://helpx.adobe.com/security/products/acrobat/apsb21-55.html"
          }
        ]
      },
      "source": {
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
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            }
          ]
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                "Vendor Advisory"
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              "url": "https://helpx.adobe.com/security/products/acrobat/apsb21-55.html"
            }
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-02-05T02:17Z",
      "publishedDate": "2021-09-29T16:15Z"
    }
  }
}


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