Vulnerability-Lookup

CNVD-2021-30415

Vulnerability from cnvd - Published: 2021-04-24

Title

Adobe Digital Editions权限提升漏洞

Description

Adobe Digital Editions（DE）是美国奥多比（Adobe）公司的一套电子书阅读管理软件。该软件支持打开、阅读和管理PDF、XML、Flash等格式的文件。 Adobe Digital Editions存在权限提升漏洞。攻击者可利用该漏洞写入任意文件系统。

Severity

中

Patch Name

Adobe Digital Editions权限提升漏洞的补丁

Patch Description

Adobe Digital Editions（DE）是美国奥多比（Adobe）公司的一套电子书阅读管理软件。该软件支持打开、阅读和管理PDF、XML、Flash等格式的文件。 Adobe Digital Editions存在权限提升漏洞。攻击者可利用该漏洞写入任意文件系统。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://helpx.adobe.com/security/products/Digital-Editions/apsb21-26.html

Reference

https://helpx.adobe.com/security/products/Digital-Editions/apsb21-26.html

Impacted products

Name
Adobe Digital Editions <=4.5.11.187245

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21100",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-21100"
    }
  },
  "description": "Adobe Digital Editions\uff08DE\uff09\u662f\u7f8e\u56fd\u5965\u591a\u6bd4\uff08Adobe\uff09\u516c\u53f8\u7684\u4e00\u5957\u7535\u5b50\u4e66\u9605\u8bfb\u7ba1\u7406\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u652f\u6301\u6253\u5f00\u3001\u9605\u8bfb\u548c\u7ba1\u7406PDF\u3001XML\u3001Flash\u7b49\u683c\u5f0f\u7684\u6587\u4ef6\u3002\n\nAdobe Digital Editions\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5199\u5165\u4efb\u610f\u6587\u4ef6\u7cfb\u7edf\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://helpx.adobe.com/security/products/Digital-Editions/apsb21-26.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-30415",
  "openTime": "2021-04-24",
  "patchDescription": "Adobe Digital Editions\uff08DE\uff09\u662f\u7f8e\u56fd\u5965\u591a\u6bd4\uff08Adobe\uff09\u516c\u53f8\u7684\u4e00\u5957\u7535\u5b50\u4e66\u9605\u8bfb\u7ba1\u7406\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u652f\u6301\u6253\u5f00\u3001\u9605\u8bfb\u548c\u7ba1\u7406PDF\u3001XML\u3001Flash\u7b49\u683c\u5f0f\u7684\u6587\u4ef6\u3002\r\n\r\nAdobe Digital Editions\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5199\u5165\u4efb\u610f\u6587\u4ef6\u7cfb\u7edf\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Adobe Digital Editions\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Adobe Digital Editions \u003c=4.5.11.187245"
  },
  "referenceLink": "https://helpx.adobe.com/security/products/Digital-Editions/apsb21-26.html",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-14",
  "title": "Adobe Digital Editions\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2021-21100 (GCVE-0-2021-21100)

Vulnerability from cvelistv5 – Published: 2021-04-15 13:51 – Updated: 2025-04-23 19:42

Title

Adobe Digital Editions Arbitrary file system write vulnerability

Summary

Adobe Digital Editions version 4.5.11.187245 (and earlier) is affected by a Privilege Escalation vulnerability during installation. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary file system write in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:19 UTC

CWE

CWE-379 - Creation of Temporary File in Directory with Incorrect Permissions (CWE-379)

Assigner

adobe mitre root

References

1 reference

URL	Tags
https://helpx.adobe.com/security/products/Digital…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Adobe	Digital Editions	Affected: unspecified , ≤ 4.5.11.187245 (custom) Affected: unspecified , ≤ None (custom)

Date Public

2021-04-13 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:01:13.275Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://helpx.adobe.com/security/products/Digital-Editions/apsb21-26.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-21100",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T13:19:24.332536Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T19:42:18.061Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Digital Editions",
          "vendor": "Adobe",
          "versions": [
            {
              "lessThanOrEqual": "4.5.11.187245",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "None",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-04-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Adobe Digital Editions version 4.5.11.187245 (and earlier) is affected by a Privilege Escalation vulnerability during installation. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary file system write in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-379",
              "description": "Creation of Temporary File in Directory with Incorrect Permissions (CWE-379)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-15T13:51:28.000Z",
        "orgId": "078d4453-3bcd-4900-85e6-15281da43538",
        "shortName": "adobe"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://helpx.adobe.com/security/products/Digital-Editions/apsb21-26.html"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Adobe Digital Editions Arbitrary file system write vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@adobe.com",
          "DATE_PUBLIC": "2021-04-13T23:00:00.000Z",
          "ID": "CVE-2021-21100",
          "STATE": "PUBLIC",
          "TITLE": "Adobe Digital Editions Arbitrary file system write vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Digital Editions",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_value": "4.5.11.187245"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_value": "None"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_value": "None"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_value": "None"
                          }
                        ]
                      }
                    }
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                },
                "vendor_name": "Adobe"
              }
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        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "value": "Adobe Digital Editions version 4.5.11.187245 (and earlier) is affected by a Privilege Escalation vulnerability during installation. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary file system write in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "None",
            "attackVector": "None",
            "availabilityImpact": "None",
            "baseScore": 7.8,
            "baseSeverity": "High",
            "confidentialityImpact": "None",
            "integrityImpact": "None",
            "privilegesRequired": "None",
            "scope": "None",
            "userInteraction": "None",
            "vectorString": "AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Creation of Temporary File in Directory with Incorrect Permissions (CWE-379)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://helpx.adobe.com/security/products/Digital-Editions/apsb21-26.html",
              "refsource": "MISC",
              "url": "https://helpx.adobe.com/security/products/Digital-Editions/apsb21-26.html"
            }
          ]
        },
        "source": {
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538",
    "assignerShortName": "adobe",
    "cveId": "CVE-2021-21100",
    "datePublished": "2021-04-15T13:51:28.016Z",
    "dateReserved": "2020-12-18T00:00:00.000Z",
    "dateUpdated": "2025-04-23T19:42:18.061Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.